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Sample search results for: zinc oxide nanoparticles

 

1

Size effects on varistor properties made from zinc oxide nanoparticles by low temperature spark plasma sintering

  Physics Websites

Summary: 1 Size effects on varistor properties made from zinc oxide nanoparticles by low temperature spark of nanostructured varistors by Spark Plasma Sintering (SPS) are investigated, using 8 nm zinc oxide nanoparticles synthesized following an organometallic approach. A binary system constituted of zinc oxide and bismuth oxides

Paris-Sud XI, Université de

2

In vivo imaging of immune cell dynamics in skin in response to zinc-oxide nanoparticle exposure

  Engineering Websites

Summary: In vivo imaging of immune cell dynamics in skin in response to zinc-oxide nanoparticle exposure-Champaign, Urbana, IL USA * boppart@illinois.edu Abstract: Zinc oxide (ZnO) nanoparticles (NPs) are widely used of nanosized particles in titanium dioxide- and zinc oxide-based sunscreens," J. Am. Acad. Dermatol. 61(4), 685

Boppart, Stephen

3

RESEARCH PAPER Surfactant-modified nickel zinc iron oxide/polymer

  Materials Science Websites

Summary: RESEARCH PAPER Surfactant-modified nickel zinc iron oxide/polymer nanocomposites for radio maintained 125% strain (elongation at break) with 30% nanoparticle doping. Keywords Nickel zinc iron oxide Á. In this study, we demonstrate the feasibility of preparing flexible nickel zinc iron oxide (NZFO)/ polymer

Rubloff, Gary W.

4

Nanocomposite electrical generator based on piezoelectric zinc oxide nanowires

  Engineering Websites

Summary: Nanocomposite electrical generator based on piezoelectric zinc oxide nanowires K. Momeni, G. M of zinc oxide nanowires is considered. The electric potential distribution along zinc oxide nanowires the axis of the zinc oxide nanowires. Maximum and minimum values of electric potential exist at the extreme

Endres. William J.

5

Comparative study of zinc oxide and aluminum doped zinc oxide transparent thin films grown by direct current magnetron sputtering

  Materials Science Websites

Summary: Comparative study of zinc oxide and aluminum doped zinc oxide transparent thin films grown January 2007 Abstract Pure and aluminum (Al) doped zinc oxide (ZnO and ZAO) thin films have been grown.V. All rights reserved. Keywords: Zinc oxide; dc magnetron sputtering; Surface morphology; Sensors 1


6

Doping in Zinc Oxide Thin Films

  University of California eScholarship Repository

Summary: In chapter 5 of this dissertation, ZnO DMS through Co5-6 The origin and mechanism of ferromagnetism in these DMS5 Cobalt Doping in Zinc Oxide Introduction Diluted magnetic semiconductors Diluted magnetic semiconductor (DMS)

Yang, Zheng
2009-01-01

7

Molecular Orbital Studies of Zinc Oxide Chemical Vapor Deposition: Gas-Phase Hydrolysis of Diethyl Zinc,

  Chemistry Websites

Summary: Molecular Orbital Studies of Zinc Oxide Chemical Vapor Deposition: Gas-Phase Hydrolysis of Diethyl Zinc, Elimination Reactions, and Formation of Dimers and Tetramers Stanley M. Smith and H. Bernhard deposition of zinc oxide thin films can be carried out with diethyl zinc and water vapor. The present study

Schlegel, H. Bernhard

8

Piezoelectric Nanogenerators Based on Zinc Oxide Nanowire Arrays

  Materials Science Websites

Summary: #12;Piezoelectric Nanogenerators Based on Zinc Oxide Nanowire Arrays Zhong Lin Wang1 of piezoelectric zinc oxide nanowire (NW) arrays. The aligned NWs are deflected with a conductive atomic force microscope tip in contact mode. The coupling of piezoelectric and semiconducting properties in zinc oxide

Wang, Zhong L.

9

Piezoelectric Characterization of Individual Zinc Oxide Nanobelt Probed

  Materials Science Websites

Summary: Piezoelectric Characterization of Individual Zinc Oxide Nanobelt Probed by Piezoresponse Force piezoelectric coefficient (d33) of an individual (0001) surface dominated zinc oxide nanobelt lying of ZnO nanobelts as nanosensors and nanoactuators. Zinc oxide is a semiconducting piezoelectric material

Wang, Zhong L.

10

RF sputtered piezoelectric zinc oxide thin film for transducer applications

  Engineering Websites

Summary: RF sputtered piezoelectric zinc oxide thin film for transducer applications Yu-Hsiang Hsu ? John depen- dency of the c-axis zinc oxide growth in radio-frequency sputtering system. Different deposition. 1 Introduction Zinc Oxide (ZnO) is a material that possesses versatile mechanical, electrical

Tang, William C

11

Novel Zinc Oxide Nanostructures Discovery by Electron Zhong Lin Wang

  Materials Science Websites

Summary: Novel Zinc Oxide Nanostructures Discovery by Electron Microscopy Zhong Lin Wang School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA 30332-0245, USA Abstract. Zinc oxide fabricated based on individual nanobelts. Thermal transport along a nanobelt has been measured [7]. Zinc

Wang, Zhong L.

12

INFRARED SPECTROSCOPY OF ZINC OXIDE AND MAGNESIUM NANOSTRUCTURES

  Physics Websites

Summary: INFRARED SPECTROSCOPY OF ZINC OXIDE AND MAGNESIUM NANOSTRUCTURES By WIN MAW HLAING OO OF ZINC OXIDE AND MAGNESIUM NANOSTRUCTURES Abstract by Win Maw Hlaing Oo, Ph.D. Washington State investigated. ZnO nanopar- ticles were prepared by a reaction of zinc acetate and sodium hydrogen carbonate

McCluskey, Matthew

13

Splendid One-Dimensional Nanostructures of Zinc Oxide: A New

  Materials Science Websites

Summary: Splendid One-Dimensional Nanostructures of Zinc Oxide: A New Nanomaterial Family for Nanotechnology (0001) facets, owing to the positive and negative ionic charges on the zinc- and oxygen-terminated (0001 Zinc oxide is a unique material that exhibits exceptional semiconductin

Wang, Zhong L.

14

Atomistic Simulation Study of Spinel Oxides: Zinc Aluminate and Zinc Gallate

  Physics Websites

Summary: Atomistic Simulation Study of Spinel Oxides: Zinc Aluminate and Zinc Gallate Ravindra Pandey´tica, Universidad de Oviedo, 33006-Oviedo, Spain Stoichiometric zinc aluminate (ZnAl2O4) and zinc gallate (ZnGa2O4 of Al2O3/Ga2O3 via the formation of zinc vacancies is predicted relative to that of ZnO in ZnAl2O4/ZnGa2

Pandey, Ravi

15

RF Characteristics of Room-Temperature-Deposited, Small Gate Dimension Indium Zinc Oxide TFTs

  Materials Science Websites

Summary: RF Characteristics of Room-Temperature-Deposited, Small Gate Dimension Indium Zinc Oxide TFTs Yu, North Carolina 27709, USA Depletion-mode indium zinc oxide channel thin film transistors TFTs with gate semiconductors such as zinc oxide, zinc tin oxide, indium gallium oxide, and indium gallium zinc tin oxide have

Pearton, Stephen J.

16

Novel method to synthesize and characterize Zinc Sulfide nanoparticles

  CiteSeer

Summary: Abstract: Zinc sulfide nanoparticles were fabricated by solvent evaporation method with and without using capping agent, Hexa decyltrimethyl ammonium bromide (CTAB) at room temperature. The product was received in powder form. The structure and composition of the resultant product was characterized by means of UV and FTIR spectrophotometric studies. FTIR analysis showed peaks at 352.02 cm-1 and 611.46 cm-1 for Zinc Sulfide with CTAB, corresponding to Zinc and Sulfide stretching. For Zinc Sulfide without CTAB, the same stretching frequencies were observed at 315.10 cm-1 and 615.32 cm-1. UV spectrophotometer study determined the band gap of nanocrystalline Zinc Sulfide (with and without CTAB) as 5.48 eV and 5.99 eV, respectively. The optical absorption edge exhibited a blue shift with respect to that of the bulk sample. The blue shift with the decrease in crystalline size was attributed to the quantum size effects. When ZnS was prepared without CTAB, there was decrease in the size of the nanoparticle than when it was prepared with CTAB. Even though no capping agent (CTAB) was used in preparing ZnS, the particle size was well reduced. It was achieved by stirring the solutions during preparation. No agglomeration of nanoparticles was detected

Yesu Thangam Y; Anitha R; Kavitha B

17

Bicrystalline zinc oxide nanowires Ying Dai a,1

  Materials Science Websites

Summary: Bicrystalline zinc oxide nanowires Ying Dai a,1 , Yue Zhang a,b,*, Yuan Qiang Bai a , Zhong Lin discussed here were syn- thesized by thermal evaporation of 99.9% pure zinc powders under controlled conditions without the presence of catalyst. The zinc powders were placed in an alumina tube

Wang, Zhong L.

18

Author's personal copy Flame synthesis of zinc oxide nanowires

  Engineering Websites

Summary: Author's personal copy Flame synthesis of zinc oxide nanowires Fusheng Xu a , Xiaofei LiuO nanowires are grown directly on zinc-plated-steel substrates at high rates (microns/minute) using a flame have been explored using different starting materials, e.g. zinc metal powder [5­13], ZnO powder [14

Tse, Stephen D.

19

Atomic layer deposited zinc tin oxide channel for amorphous oxide thin film transistors

  Chemistry Websites

Summary: Atomic layer deposited zinc tin oxide channel for amorphous oxide thin film transistors Jaeyeong online 14 September 2012) Bottom-gate thin film transistors with amorphous zinc tin oxide channels were. Channels with higher zinc to tin ratio ($3­4) also performed better than ones with lower ratios ($1­3). VC


20

UV irradiation-induced zinc dissociation from commercial zinc oxide sunscreen and its action in human epidermal keratinocytes

  Biology and Medicine Websites

Summary: UV irradiation-induced zinc dissociation from commercial zinc oxide sunscreen and its action Summary Zinc oxide (ZnO) is an active ingredient in sunscreen owing to its properties of broadly filtering of solar radiation on the skin. This study investigated the dissociation of zinc (Zn2+ ) from Zn

Li, Yang V.

21

Optical and Luminescence Properties of Zinc Oxide

  CERN Preprints

Summary: We generalize and systematize basic experimental data on optical and luminescence properties of ZnO single crystals, thin films, powders, ceramics, and nanocrystals. We consider and study mechanisms by which two main emission bands occur, a short-wavelength band near the fundamental absorption edge and a broad long-wavelength band, the maximum of which usually lies in the green spectral range. We determine a relationship between the two luminescence bands and study in detail the possibility of controlling the characteristics of ZnO by varying the maximum position of the short-wavelength band. We show that the optical and luminescence characteristics of ZnO largely depend on the choice of the corresponding impurity and the parameters of the synthesis and subsequent treatment of the sample. Prospects for using zinc oxide as a scintillator material are discussed. Additionally, we consider experimental results that are of principal interest for practice.

Rodnyi, P A; 10.1134/S0030400X11120216
2012-01-01

22

Optical and Luminescence Properties of Zinc Oxide

  Nuclear Experiment (arXiv)

Summary: We generalize and systematize basic experimental data on optical and luminescence properties of ZnO single crystals, thin films, powders, ceramics, and nanocrystals. We consider and study mechanisms by which two main emission bands occur, a short-wavelength band near the fundamental absorption edge and a broad long-wavelength band, the maximum of which usually lies in the green spectral range. We determine a relationship between the two luminescence bands and study in detail the possibility of controlling the characteristics of ZnO by varying the maximum position of the short-wavelength band. We show that the optical and luminescence characteristics of ZnO largely depend on the choice of the corresponding impurity and the parameters of the synthesis and subsequent treatment of the sample. Prospects for using zinc oxide as a scintillator material are discussed. Additionally, we consider experimental results that are of principal interest for practice.

P. A. Rodnyi; I. V. Khodyuk
2012-03-20

23

Magnetic and structural properties of nickel zinc ferrite nanoparticles synthesized at room temperature

  Materials Science Websites

Summary: Magnetic and structural properties of nickel zinc ferrite nanoparticles synthesized at room, Boston, Massachusetts 02115 Received 5 December 2003; accepted 4 March 2004 Nickel zinc ferrite sites, actually resides in octahedral coordination in a zinc-enriched outer layer of the particles

McHenry, Michael E.

24

Optimization and Characterization of RF Sputtered Piezoelectric Zinc Oxide Thin Film for

  Engineering Websites

Summary: Optimization and Characterization of RF Sputtered Piezoelectric Zinc Oxide Thin Film for Transducer dependency of the c-axis zinc oxide growth in radio-frequency sputtering system. Different deposition to single-step approach. Keywords- Zinc oxide;Piezoelectric transducer; RF-sputtering I. INTRODUCTION Zinc

Tang, William C

25

Thioredoxin 2, an Oxidative Stress-induced Protein, Contains a High Affinity Zinc Binding Site*

  Biotechnology Websites

Summary: Thioredoxin 2, an Oxidative Stress-induced Protein, Contains a High Affinity Zinc Binding Site contains zinc in a 1:1 stoichiometry, making it the first identified zinc- binding thioredoxin. The zinc atom is coordinated by the four cysteines of the two N-terminal CXXC motifs. The zinc center of Trx2

Bardwell, James

26

COMPARISON OF THE EFFICIENCY OF ZINC INJECTED AS METAL OR OXIDE

  Computer Technologies and Information Sciences Websites

Summary: COMPARISON OF THE EFFICIENCY OF ZINC INJECTED AS METAL OR OXIDE FOR ZINC DEFICIENCY TREATMENT. V. Theix, 63110 Beaumont France. Résumé EFFIIACIT? COMPAR?E DE L'INJECTION DE ZINC M?TAL OU OXYDE DANS LE TRAITE- MENT DE LA CARENCE EN ZINC CHEZ LE MOUTON. - L'injection de zinc sous forme d'oxyde ou

Boyer, Edmond

27

Nanoarchitectures of semiconducting and piezoelectric zinc oxide Pu Xian Gao and Zhong L. Wanga

  Materials Science Websites

Summary: Nanoarchitectures of semiconducting and piezoelectric zinc oxide Pu Xian Gao and Zhong L. Wanga and piezoelectric zinc oxide has two important structure characteristics: the multiple and switchable growth conductive by doping. As a wurtzite-structured oxide, zinc oxide is of three types and a total of 13 fastest

Wang, Zhong L.

28

Amorphous indium-gallium-zinc-oxide visible-light phototransistor with a polymeric light absorption layer

  Engineering Websites

Summary: Amorphous indium-gallium-zinc-oxide visible-light phototransistor with a polymeric light absorption-light phototransistor comprised of a wide-band-gap amorphous indium-gallium-zinc-oxide a-IGZO thin-film transistor TFT:10.1063/1.3517506 Thin-film transistors with amorphous metal oxide films, such as zinc oxide


29

Molecular Orbital Studies of Zinc Oxide Chemical Vapor Deposition: Gas-Phase Radical Reactions

  Chemistry Websites

Summary: Molecular Orbital Studies of Zinc Oxide Chemical Vapor Deposition: Gas-Phase Radical Reactions-phase reactions involved in the radical mechanism for zinc oxide chemical vapor deposition have been examined involve the thermal dissociation of diethyl zinc. The second bond dissociation of diethyl zinc

Schlegel, H. Bernhard

30

Zinc ferrite nanoparticles as MRI contrast agentsw Carlos Ba rcena,a

  Biology and Medicine Websites

Summary: Zinc ferrite nanoparticles as MRI contrast agentsw Carlos Ba´ rcena,a Amandeep K. Sra,a Girija S-stoichiometric zinc ferrite nano- particles, ZnxFe1?xOÁFe2O3 (also abbreviated as Zn-SPIO) and their potential over stoichiometry and size. Thus, we modified our synthetic strategy and used diethyl zinc (Et2Zn

Gao, Jinming

31

Rational Synthesis of p-Type Zinc Oxide Nanowire Arrays Using Simple Chemical

  Engineering Websites

Summary: Rational Synthesis of p-Type Zinc Oxide Nanowire Arrays Using Simple Chemical Vapor Deposition Bin electronics, optoelectronics, and medicines. Zinc oxide (ZnO) is a wide direct band gap semiconductor (Eg ) 3

Wang, Deli

32

Room temperature fast synthesis of zinc oxide nanowires by inductive heating

  Engineering Websites

Summary: Room temperature fast synthesis of zinc oxide nanowires by inductive heating Lei Luo,a Brian D-generation devices.1,2 Among them, zinc oxide ZnO nanowires have been under intense study for applications

Lin, Liwei

33

Synthesis and characterization of pn homojunction-containing zinc oxide nanowires

  Materials Science Websites

Summary: Synthesis and characterization of p­n homojunction-containing zinc oxide nanowires Guohua Li with predictablephysicalpropertiesisthereforeofutmostimportancefor the advancement of both fundamental and applied research in this eld.4­8 Zinc oxide (Zn

Pennycook, Steve

34

The insert of zinc oxide thin film in indium tin oxide anode for organic electroluminescence devices q

  Materials Science Websites

Summary: The insert of zinc oxide thin film in indium tin oxide anode for organic electroluminescence-746, South Korea Received 30 August 2003; accepted 7 November 2003 Available online 6 May 2004 Abstract Zinc high-purity of zinc oxide (99.99%) powder. Systematic study on dependence of target

Boo, Jin-Hyo

35

Optical properties of epitaxially grown zinc oxide films on sapphire by pulsed laser deposition

  Engineering Websites

Summary: Optical properties of epitaxially grown zinc oxide films on sapphire by pulsed laser deposition X a Sellmeier equation. © 1999 American Institute of Physics. S0021-8979 99 02713-9 I. INTRODUCTION Zinc oxide electrodes for flat panel displays, and solar cells.1 Zinc oxide is also a piezoelectric material which has

Kwok, Hoi S.

36

LASER ABLATION SYNTHESIS OF ZINC OXIDE CLUSTERS: A NEW FAMILY OF FULLERENES?

  Physics Websites

Summary: 1 LASER ABLATION SYNTHESIS OF ZINC OXIDE CLUSTERS: A NEW FAMILY OF FULLERENES? Alexander V, Marseille, France ABSTRACT Positively charged zinc oxide clusters ZnnOm (up to n = 16, m £ n) of various. One might thus expect various structural forms of zinc oxide clusters with predominantly covalent

Paris-Sud XI, Université de

37

Physica B 340342 (2003) 221224 Infrared spectroscopy of hydrogen in annealed zinc oxide

  Physics Websites

Summary: Physica B 340­342 (2003) 221­224 Infrared spectroscopy of hydrogen in annealed zinc oxide S, USA Abstract Zinc oxide (ZnO) has shown great promise as a wide band gap semiconductor with optical reserved. Keywords: Zinc oxide; Hydrogen; FTIR; Polarization In previous studies, it has been shown

McCluskey, Matthew

38

Nanostructured zinc oxide films synthesized by successive chemical solution deposition for gas sensor applications

  Engineering Websites

Summary: Nanostructured zinc oxide films synthesized by successive chemical solution deposition for gas Stefan cel Mare Blvd., MD-2004 Chisinau, Republic of Moldova 1. Introduction Zinc oxide is a II­VI group,10]. More recently, zinc oxide has attracted considerable interest as a nanostructured material for thin

Kik, Pieter

39

Near-Field Imaging of Nonlinear Optical Mixing in Single Zinc Oxide Nanowires

  Chemistry Websites

Summary: Near-Field Imaging of Nonlinear Optical Mixing in Single Zinc Oxide Nanowires Justin C. Johnson-harmonic generation (SHG, THG) are imaged on single zinc oxide (ZnO) nanowires using near-field scanning optical of particular interest is zinc oxide (ZnO), a wide band gap (3.37 eV, 368 nm) semiconductor that has been

Yang, Peidong

40

Stable Oxide Nanoparticle Clusters Obtained by Complexation

  Condensed Matter (arXiv)

Summary: We report on the electrostatic complexation between polyelectrolyte-neutral copolymers and oppositely charged 6 nm-crystalline nanoparticles. For two different dispersions of oxide nanoparticles, the electrostatic complexation gives rise to the formation of stable nanoparticle clusters in the range 20 - 100 nm. It is found that inside the clusters, the particles are pasted together by the polyelectrolyte blocks adsorbed on their surface. Cryo-transmission electronic microscopy allows to visualize the clusters and to determine the probability distributions functions in size and in aggregation number. The comparison between light scattering and cryo-microscopy results suggests the existence of a polymer brush around the clusters.

J. -F. Berret; A. Sehgal; M. Morvan; O. Sandre; A. Vacher; M. Airiau
2006-08-08

41

Authigenic iron oxide proxies for marine zinc over geological time and implications for eukaryotic metallome

  Geosciences Websites

Summary: Authigenic iron oxide proxies for marine zinc over geological time and implications for eukaryotic linked to biologically intrinsic evolutionary factors. In this case, zinc`s geochemical and biological-780-492-2030; e-mail: lrobbins@ualberta.ca INTRODUCTION Zinc is the most common inorganic cofactor in eukaryotic

Konhauser, Kurt

42

RESEARCH IRON OXIDE NANOPARTICLES Synthesis of Iron Oxide Nanoparticles with Biological Coatings

  CiteSeer

Summary: For biological and biomedical applications, it is required to produce nanoparticles that are water soluble and biocompatible. Here, we report the synthesis of iron oxide nanoparticles coated with biological molecules (e.g., gluconic acid, lactobionic acid, or polyacrylic acid) via a co

David Dozier; Soubantika Palchoudhury; Yuping Bao, Ph.D.

43

Burn-induced oxidative stress is altered by a low zinc status: kinetic study in burned rats fed a low zinc diet

  Physics Websites

Summary: 1 Burn-induced oxidative stress is altered by a low zinc status: kinetic study in burned rats fed a low zinc diet Richard Claeyssen1,2 , Maud Andriollo-Sanchez1 , Josiane Arnaud2,3 , Laurence Touvard1 Cedex 9, France. Keywords: Burn injury, zinc intakes, zinc status, oxidative stress, rat model

Paris-Sud XI, Université de

44

Electrochemical Quartz Crystal Microbalance Studies of Electron Addition at Nanocrystalline Tin Oxide/Water and Zinc Oxide/Water Interfaces: Evidence for

  Renewable Energy Websites

Summary: Oxide/Water and Zinc Oxide/Water Interfaces: Evidence for Band-Edge-Determining Proton Uptake Buford I at nanocrystalline zinc oxide/ water and tin oxide/water interfaces is similarly accompanied by uptake of charge


45

The Electrical and Band-Gap Properties of Amorphous Zinc-Indium-Tin Oxide Thin Films

  Engineering Websites

Summary: MRSEC The Electrical and Band-Gap Properties of Amorphous Zinc-Indium-Tin Oxide Thin Films D Science & Engineering Center For zinc-indium-tin oxide (ZITO) films, grown by pulsed-laser deposition was replaced by substitution with zinc and tin in equal molar proportions (co-substitution). All ZITO films

Shahriar, Selim

46

Residual Doping in Homoepitaxial Zinc Oxide Layers Grown by Metal Organic Vapor Phase Epitaxy

  Physics Websites

Summary: Residual Doping in Homoepitaxial Zinc Oxide Layers Grown by Metal Organic Vapor Phase Epitaxy zinc oxide layers. Two different conductivity channels were clearly identified and the channel and diethyl zinc (DeZn) as precursors for O and Zn, respectively, onto O-face hydrothermal ZnO substrate

Paris-Sud XI, Université de

47

Analytic bond-order potential for atomistic simulations of zinc oxide

  Physics Websites

Summary: Analytic bond-order potential for atomistic simulations of zinc oxide Paul Erhart1 , Niklas Juslin2 for zinc oxide and its elemental constituents is derived based on an analytical bond-order formalism. The model potential provides a good description of the bulk properties of various solid structures of zinc

Nordlund, Kai

48

Molecular control of photoexcited charge transfer and recombination at a quaterthiophene/zinc oxide interface

  Engineering Websites

Summary: Molecular control of photoexcited charge transfer and recombination at a quaterthiophene/zinc oxide),1­3 or oligomer, quaterthiophene (QT),1 as a photo- absorbing and electron-donor material and zinc

Southern California, University of

49

Surface Plasmon Resonance (SPR) Electron and Energy Transfer in Noble Metal-Zinc Oxide Composite Nanocrystals

  Engineering Websites

Summary: Surface Plasmon Resonance (SPR) Electron and Energy Transfer in Noble Metal-Zinc Oxide Composite a dumbbell-like structure were successfully synthesized through the nucleation and decomposition of zinc

Kim, Tae-Geun

50

Zinc in a +III oxidation state

  CERN Preprints

Summary: The possibility of Group 12 elements, such as Zn, Cd, and Hg existing in an oxidation state of +III or higher and hence transforming them into transition metals has fascinated chemists for decades. It took nearly 20 years before experiment could confirm the theoretical prediction that Hg indeed can exist in an oxidation state of +IV. While this unusual property of Hg is attributed to the relativistic effects, Zn being much lighter than Hg has not been expected to have an oxidation state higher than +II. Using density functional theory we show that an oxidation state of +III for Zn can be realized by choosing specific ligands with large electron affinities. We demonstrate this by a systematic study of the interaction of Zn with F, BO2, and AuF6 ligands whose electron affinities are progressively higher, namely, 3.4 eV, 4.5 eV, and 8.6 eV, respectively. Discovery of higher oxidation states of elements can help in the formulation of new reactions and hence in the development of new chemistry.

Samanta, Devleena
2012-01-01

51

Selective real-time nitric oxide detection by functionalized zinc oxide This article has been downloaded from IOPscience. Please scroll down to see the full text article.

  Engineering Websites

Summary: Selective real-time nitric oxide detection by functionalized zinc oxide This article has been) doi:10.1088/0022-3727/42/15/155105 Selective real-time nitric oxide detection by functionalized zinc chloride (haemin)-functionalized Al-doped zinc oxide (ZnO) is used for nitric oxide (NO) sensing at room


52

Zinc Oxide Nanowires Low-Temperature Wafer-Scale Production of

  Materials Science Websites

Summary: Zinc Oxide Nanowires Low-Temperature Wafer-Scale Production of ZnO Nanowire Arrays** Lori E. Greene temperature to 4508C by using organometallic zinc precursors,[3] the commercial potential of gas of Pacholski.[7] A NaOH solution in methanol (0.03m) was added slowly to a solution of zinc acetate dihydrate

Yang, Peidong

53

The microstructural properties of sputtered zinc oxide SAW transducers F. S. Hickernell

  Physics Websites

Summary: 319 The microstructural properties of sputtered zinc oxide SAW transducers F. S. Hickernell, accepté le 9 novembre 1984) Résumé. 2014 Les propriétés microstructurales de l'oxyde de zinc pulvérisé monocristaux d'oxyde de zinc. Les différences proviennent des conditions de croissance qui produisent une

Paris-Sud XI, Université de

54

Electroluminescence from isolated defects in zinc oxide, towards electrically triggered single photon sources at room temperature

  CERN Preprints

Summary: Single photon sources are required for a wide range of applications in quantum information science, quantum cryptography and quantum communications. However, so far majority of room temperature emitters are only excited optically, which limits their proper integration into scalable devices. In this work, we overcome this limitation and present room temperature electrically triggered light emission from localized defects in zinc oxide (ZnO) nanoparticles and thin films. The devices emit at the red spectral range and show excellent rectifying behavior. The emission is stable over an extensive period of time, providing an important prerequisite for practical devices. Our results open up possibilities to build new ZnO based quantum integrated devices that incorporate solid-state single photon sources for quantum information technologies.

Choi, Sumin; Gentle, Angus; Ton-That, Cuong; Phillips, Matthew R; Aharonovich, Igor
2015-01-01

55

Infrared Spectroscopy of Impurities in ZnO Nanoparticles W. M. Hlaing Oo and M. D. McCluskey

  Physics Websites

Summary: nanoparticles have a range of potential applications in electronic, optoelectronic and spintronic devices. Zinc, reflection and electrical properties of the nanoparticles. INTRODUCTION Zinc oxide (ZnO) has received, and transparent conducting thin films [1-2]. A variety of wet-chemical methods, using zinc salts such as zinc

McCluskey, Matthew

56

Room-temperature-operated sensitive hybrid gas sensor based on amorphous indium gallium zinc oxide thin-film transistors

  Engineering Websites

Summary: Room-temperature-operated sensitive hybrid gas sensor based on amorphous indium gallium zinc oxide 2011 An organic sensing layer is capped onto an amorphous indium gallium zinc oxide a-IGZO thin temperature, amorphous indium gallium zinc oxide thin-film transistors a-IGZO TFTs have attracted much


57

Room-temperature-operated sensitive hybrid gas sensor based on amorphous indium gallium zinc oxide thin-film transistors

  Engineering Websites

Summary: Room-temperature-operated sensitive hybrid gas sensor based on amorphous indium gallium zinc oxide-temperature-operated sensitive hybrid gas sensor based on amorphous indium gallium zinc oxide thin-film transistors Hsiao-Wen Zan is capped onto an amorphous indium gallium zinc oxide a-IGZO thin-film transistor TFT to form a hybrid


58

Co-sputtered Aluminum Doped Zinc Oxide Thin Film as Transparent Anode for Organic Light-emitting Diodes

  Materials Science Websites

Summary: Co-sputtered Aluminum Doped Zinc Oxide Thin Film as Transparent Anode for Organic Light and Technology, Clear Water Bay, Kowloon, Hong Kong, China ABSTRACT Aluminum doped zinc oxide (AZO zinc oxide, organic light- emitting diodes, co-sputtering 1. INTRODUCTION Much research work has been


59

An efficient non-Lambertian organic light-emitting diode using imprinted submicron-size zinc oxide pillar arrays

  Materials Science Websites

Summary: An efficient non-Lambertian organic light-emitting diode using imprinted submicron-size zinc oxide://apl.aip.org/about/rights_and_permissions #12;An efficient non-Lambertian organic light-emitting diode using imprinted submicron-size zinc oxide of zinc oxide periodic nanopillar arrays by pattern replication in non-wetting templates technique

Demir, Hilmi Volkan

60

Atmospheric pressure chemical vapor deposition of transparent conducting films of fluorine doped zinc oxide and their application

  Materials Science Websites

Summary: zinc oxide and their application to amorphous silicon solar cells Haifan Liang ? Roy G. Gordon Received of SnO2:F. Introduction Zinc oxide is a large band gap semiconductor (3.3 eV) with a hexagonal wurzite structure. As a thin film, zinc oxide has many practical applications, such as in solar cells, liquid


61

Effects of oxide-shell structures on the dynamics of oxidation of Al nanoparticles

  Computer Technologies and Information Sciences Websites

Summary: Effects of oxide-shell structures on the dynamics of oxidation of Al nanoparticles Weiqiang Wang of the crystalline and amorphous structure of alumina shells on the dynamics of oxidation of an aluminum nanoparticle ANP are studied using multimillion-atom molecular dynamics simulations. With an amorphous shell

Southern California, University of

62

Synthesis, Reactivity, and Catalytic Behavior of Iron/Zinc-Containing Species Involved in Oxidation of

  Chemistry Websites

Summary: Synthesis, Reactivity, and Catalytic Behavior of Iron/Zinc-Containing Species Involved in Oxidation explores the nature and reactivity of iron- and zinc-containing species generated in hydrocarbon. Reaction of [Fe3O(O2CCH3)6(py)3],py (1) with zinc powder in CH3CN/CH3COOH or CH2Cl2/CH3COOH affords


63

Nanostructured zinc oxide gas sensors by successive ionic layer adsorption and reaction method and rapid photothermal processing

  Materials Science Websites

Summary: Nanostructured zinc oxide gas sensors by successive ionic layer adsorption and reaction method temperature. The SILAR deposited zinc oxide films have been rapid photothermal processing (RPP) at various of the deposited films were studied for different concentrations of dopants and zinc-complex solution

Chow, Lee

64

Preparation of magnetic and bioactive calcium zinc iron silicon oxide composite for hyperthermia treatment of bone cancer

  Engineering Websites

Summary: Preparation of magnetic and bioactive calcium zinc iron silicon oxide composite for hyperthermia Science+Business Media, LLC 2010 Abstract In this paper, a calcium zinc iron silicon oxide composite (CZIS. The use of ther- mally sensitive material such as zinc ferrite is expected to be helpful for identifying

Qin, Qinghua

65

RESEARCH PAPER Fabrication and characterization of iron oxide nanoparticles

  Materials Science Websites

Summary: -range-hopping conductivity mechanism. The magnetic properties of the fabricated nanocomposites were dependent on the particle nanoparticles from dissolution in acid. A tight polymer structure surrounds the magnetic nanoparti- cles, as compared to a complete loss of the magnetic iron oxide nanoparticles during conventional mechanical

Guo, John Zhanhu

66

Surface modifications of iron oxide nanoparticles for biological applications

  MIT - DSpace

Summary: Iron oxides magnetic nanoparticles (MPs) of high crystallinity, high magnetization, and size-monodispersity were synthesized with oleic acid as their native ligands. These hydrophobic and non-functionalized MPs have magnetic ...

Insin, Numpon
2011-01-01

67

Biochemistry of mobile zinc and nitric oxide revealed by fluorescent sensors

  MIT - DSpace

Summary: Biological mobile zinc and nitric oxide (NO) are two prominent examples of inorganic compounds involved in numerous signaling pathways in living systems. In the past decade, a synergy of regulation, signaling, and translocation ...

Pluth, Michael D.

68

Ultrathin amorphous zinc-tin-oxide buffer layer for enhancing heterojunction interface quality in

  Chemistry Websites

Summary: -blocking layer to enhance the performance of an Earth-abundant metal-oxide solar-cell material. A 5 nm thickUltrathin amorphous zinc-tin-oxide buffer layer for enhancing heterojunction interface quality amorphous ternary metal-oxide buffer layer reduces interface recombination, resulting in sizable open


69

ZINC

  CiteSeer

Summary: This fact sheet answers the most frequently asked health questions (FAQs) about zinc. For more information, call the ATSDR Information Center at 1-888-422-8737. This fact sheet is one in a series of summaries about hazardous substances and their health effects. It is important you understand this information because this substance may harm you. The effects of exposure to any hazardous substance depend on the dose, the duration, how you are exposed, personal traits and habits, and whether other chemicals are present. HIGHLIGHTS: Zinc is a naturally occurring element. Exposure to high levels of zinc occurs mostly from eating food, drinking water, or breathing workplace air that is contaminated. Low levels of zinc are essential for maintaining good health. Exposure to large amounts of zinc can be harmful. It can cause stomach cramps, anemia, and changes in cholesterol levels. Zinc has been found in at least 985 of the 1,662 National Priority List sites identified by the Environmental Protection Agency (EPA). What is zinc? Zinc is one of the most common elements in the earth's

unknown authors
2005-01-01

70

In Situe Synthesis of Iron Oxide within Polyvinylamine nanoparticles

  University of Kansas - KU ScholarWorks

Summary: are strongly related to the oxidation speed of iron species, the synthesis of particles must be done in an oxygen-free environment (e.g. N 2 ). Bubbling nitrogen gas 9 through the solution not only protects oxidation of the magnetite but also reduces... neurodegenerative diseases [72]. Superparamagnetic iron oxide nanoparticles are currently being used as a clinical contrast agent for MRI under the names of Lumirem, Gastromark, Ferumoxsil, Abdoscan, Feridex, Endorem and Ferumoxide. Table 2 26 shows some...

Mohammadi, Zahra
2008-07-17

71

Solution-Grown Zinc Oxide Nanowires Lori E. Greene, Benjamin D. Yuhas, Matt Law, David Zitoun, and Peidong Yang*

  Chemistry Websites

Summary: Forum Solution-Grown Zinc Oxide Nanowires Lori E. Greene, Benjamin D. Yuhas, Matt Law, David Zitoun, 2006 We review two strategies for growing ZnO nanowires from zinc salts in aqueous and organic solvents. Wire arrays with diameters in the nanoscale regime can be grown in an aqueous solution of zinc nitrate

Yang, Peidong

72

Phase equilibria and properties of transparent conductors in the indium-tin-zinc oxide system

  Chemistry Websites

Summary: transparent conducting oxides (TCO's) with In, Zn, and Sn cations. Optical and electronic propertiesPhase equilibria and properties of transparent conductors in the indium-tin-zinc oxide system for applications where tradeoffs between cond. and transparency are acceptable. Proceedings of the Materials

Poeppelmeier, Kenneth R.

73

Formation of ZnO nanoparticles by laser ablation in neat water Kuk Ki Kim a

  Chemistry Websites

Summary: online 12 June 2011 a b s t r a c t Zinc oxide (ZnO) nanoparticles were prepared in neat deionized water Elsevier B.V. All rights reserved. 1. Introduction Zinc oxide (ZnO) has attractive properties using physical and chemical methods [13]. Recently, laser ablation of a zinc metal target in liquid

Kim, Sang Kyu

74

Dual gate indium-gallium-zinc-oxide thin film transistor with an unisolated floating metal gate for threshold voltage modulation and mobility

  Engineering Websites

Summary: Dual gate indium-gallium-zinc-oxide thin film transistor with an unisolated floating metal gate dual gate FDG indium-gallium-zinc-oxide IGZO thin film transistor TFT with a floating metal back gate. doi:10.1063/1.3578403 Amorphous metal-oxide such as amorphous indium- gallium-zinc-oxide a-IGZO based


75

Toxicology of nanoparticles after cellular uptake

  University of Cambridge - Dspace

Summary: any occupational, environmental, and consumer hazards. In this study, the toxicity of three different nanoparticles (NPs) was assessed: multi-walled carbon nanotubes (MWNTs), single-walled carbon nanotubes (SWNTs), and zinc oxide (ZnO) nanopowders. A...

Cheng, Crystal

76

Reduction of Sintering during Annealing of FePt Nanoparticles Coated with Iron Oxide

  Materials Science Websites

Summary: Reduction of Sintering during Annealing of FePt Nanoparticles Coated with Iron Oxide Chao Liu synthesis step. The role of the iron oxide shell on sintering of FePt nanoparticles is investigated C for 30 min at which 2.6-nm FePt nanoparticles without oxide shell coating start to sinter. Low

Laughlin, David E.

77

The Histopathology of Rat Lung Following Exposure to Zinc Oxide/Hexachioroethane Smoke or Instillation with Zinc Chloride Followed by Treatment with 70 % Oxygen

  CiteSeer

Summary: The effects of inhaled zinc oxide/hexachloroethane smoke (11,580 mg.min/m3) and intratracheally instilled zinc chloride (2.5 mg/kg body weight) have been studied in rat lung. The effects of subsequent treatment with 70 % oxygen have been studied after both procedures. Both the inhalation of the smoke and instillation of zinc chloride produced similar effects that included pulmonary edema, alveolitis and, at a later stage, some fibrosis. After zinc chloride instillation, the pathological changes largely spared the periphery of the lung, while following smoke inhalation they were more diffuse. Subsequent oxygen administration had little effect on the development or progression of the pathological changes.

Roger F. R. Brown; Timothy C. Marrs; Paul Rice; Lisa C. Masekt

78

Peptide functionalized superparamagnetic iron oxide nanoparticles as MRI contrast agents

  Engineering Websites

Summary: Peptide functionalized superparamagnetic iron oxide nanoparticles as MRI contrast agents Selim. In this study, we developed a new method to functionalize the surface of SPIONs. Peptide amphiphile molecules Dextran is a branched polysaccharide consisting of glucose subunits and was used for surface coating

Atalar, Ergin

79

Versatile ferrofluids based on polyethylene glycol coated iron oxide nanoparticles

  Engineering Websites

Summary: Versatile ferrofluids based on polyethylene glycol coated iron oxide nanoparticles W. Brullot a in revised form 20 December 2011 Available online 3 February 2012 Keywords: Ferrofluid Polyethylene glycol Magneto-optics Magnetite Rheology a b s t r a c t Versatile ferrofluids based on polyethylene glycol


80

Improved fill factors in amorphous silicon solar cells on zinc oxide by insertion of a germanium layer to block impurity incorporation

  Chemistry Websites

Summary: Improved fill factors in amorphous silicon solar cells on zinc oxide by insertion of a germanium on zinc oxide ZnO exhibit reduced fill factor and open circuit voltage in comparison with tin oxide SnO2 ideality factor by suppression of oxygen and zinc incorporation in the silicon layers. © 2004 American


81

Superparamagnetic Iron Oxide Nanoparticles with Variable Size and an Iron Oxidation State as Prospective Imaging Agents

  Materials Science Websites

Summary: the magnetic properties of this and other spinel- structured materials. The conversion from bulk to the reducedSuperparamagnetic Iron Oxide Nanoparticles with Variable Size and an Iron Oxidation State reaction conditions using high-temperature hydrolysis of the precursor iron(II) and iron(III) alkoxides

Spinu, Leonard

82

Investigation of zinc oxide doped with metal impurities for use as thin film conductive phosphors

  Texas A&M University - TxSpace

Summary: of a viable flat panel display, low voltage, conductive phosphors which emit blue, red, and green light will be required for the field emission technology. This thesis examines zinc oxide (ZnO) based thin ( ) phosphors for such an application. ZnO is a...

Evatt, Steven R.
1994-01-01

83

Variable-Temperature Electrical Measurements of Zinc Oxide/Tin Oxide-Cosubstituted Indium Oxide

  Chemistry Websites

Summary: of possible defect and transport models. Introduction Transparent conducting oxides (TCOs) are materials that combine visual light transparency and high electri- cal conductivity. Device manufacturers use TCO films of choice, tin-doped indium oxide (ITO) has a typical conductivity of 1-5 ? 103 S/cm and a transpar- ency

Poeppelmeier, Kenneth R.

84

Optical in situ size determination of single lanthanide-ion doped oxide nanoparticles

  Computer Technologies and Information Sciences Websites

Summary: for lanthanide-doped oxide nano- particles based on the fact that the nanoparticle luminosity is proportionalOptical in situ size determination of single lanthanide-ion doped oxide nanoparticles Didier 18 December 2006 We show that the size of a lanthanide-ion doped nanoparticle can be accurately

Boyer, Edmond

85

Kinetic modeling of low temperature oxidation of copper nanoparticles by O2

  Physics Websites

Summary: 1 Kinetic modeling of low temperature oxidation of copper nanoparticles by O2 Mounir MANSOUR, Loïc-Etienne France Abstract The mechanism and kinetics of copper nanoparticles oxidation at low temperature were and a kinetic model have been established to interpret the experimental curves. Keywords: copper, nanoparticle

Paris-Sud XI, Université de

86

Synthesis and Characterization of Silica-Coated Iron Oxide Nanoparticles in Microemulsion: The Effect of Nonionic

  Biotechnology Websites

Summary: , crystallinity, and the magnetic properties have been studied. The iron oxide nanoparticles are formed to study both uncoated and silica-coated iron oxide nanoparticles. All these particles show magnetic behavior close to that of superparamagnetic materials. By use of this method, magnetic nanoparticles

Tan, Weihong

87

60 IEEE ELECTRON DEVICE LETTERS, VOL. 34, NO. 1, JANUARY 2013 Self-Aligned IndiumGalliumZinc Oxide Thin-Film

  Materials Science Websites

Summary: 60 IEEE ELECTRON DEVICE LETTERS, VOL. 34, NO. 1, JANUARY 2013 Self-Aligned Indium­Gallium­Zinc-gate amorphous indium­gallium­ zinc oxide (a-IGZO) thin-film transistors (TFTs) with source/drain (S/D) regions) based on zinc oxide [1] and its variants, such as amorphous indium­gallium­zinc oxide (a-IGZO) [2


88

Structural and optical properties of silver-doped zinc oxide sputtered films S.H. Jeong, B.N. Park, S.B. Lee, J.-H. Boo*

  Materials Science Websites

Summary: Structural and optical properties of silver-doped zinc oxide sputtered films S.H. Jeong, B.N. Park sputtering; NEXAFS 1. Introduction Recently, zinc oxide (ZnO) films have been broadly investigated/or zinc interstitials, which act as n-type donors. Many different methods, such as rf/dc sputtering [10

Boo, Jin-Hyo

89

Observations of oxidation mechanisms and kinetics in faceted FeCo magnetic nanoparticles

  Materials Science Websites

Summary: Observations of oxidation mechanisms and kinetics in faceted FeCo magnetic nanoparticles N. J at RT, and Co appeared to oxidize separately from the iron. Iron cations were determined needs to be investigated, noting how the oxide couples to the core of FeCo. FeCo magnetic nanoparticles

McHenry, Michael E.

90

P-11: Electrical Properties and Stability of Dual-Gate Coplanar Homojunction Amorphous Indium-Gallium-Zinc-Oxide Thin-Film Transistor

  Engineering Websites

Summary: P-11: Electrical Properties and Stability of Dual-Gate Coplanar Homojunction Amorphous Indium-Gallium-Zinc of dual-gate (DG) coplanar homojunction amorphous indium-gallium-zinc-oxide thin-film transistors (a

Kanicki, Jerzy

91

Zinc sorption by iron oxides and soil samples

  Texas A&M University - TxSpace

Summary: -ferrihydrite. 28 0. 3 0. 2 Goethite g 01 (D 0. 0 E 0. 1 0. 2 pH 8. 5 - 8. 9 1 M NaCI ~ 0. 1 MNaCI 0. 001 M NaCI 0. 3 4 5 6 pH 7 8 9 10 0. 2 0. 1 Si-goethite cy 0. 0 O E E 0. 1 D 0. 2 pH 6. 1-6. 5 1 MNaCI ~ 0. 1MNaCI 0. 001 M NaCI 0... 6 Constants of the Freundlich adsorption isotherm lan x/m = k' C for Zn sorption by the Fe oxides at pH 7. 0 -1 7 Sorption of added Zn (10 mg g of oxide) and effect of Zn addition on the pH of the oxide suspensions 49 5 A B The ratio...

Yli-Halla, Markku Juhani
1989-01-01

92

Evaluation of the optical axis tilt of Zinc oxide films via noncollinear second harmonic generation

  CERN Preprints

Summary: We investigated noncollinear second harmonic generation form Zinc oxide films, grown on glass substrates by dual ion beam sputtering technique. At a fixed incidence angle, the generated signal is investigated by scanning the polarization state of both fundamental beams. We show that the map of the generated signal as a function of polarization states of both pump beams, together with the analytical curves, allows to retrieve the orientation of the optical axis and, eventually, its angular tilt, with respect to the surface normal

Bovino, Fabio Antonio; Belardini, Alessandro; Sibilia, Concita
2009-01-01

93

Thiol-modified poly(ethylene glycol)-conjugated gold/ superparamagnetic iron oxide nanoparticles

  Biology and Medicine Websites

Summary: Thiol-modified poly(ethylene glycol)-conjugated gold/ superparamagnetic iron oxide nanoparticles Chemical name: Thiol-modified poly(ethylene glycol)-conjugated gold/superparamagnetic iron oxide, macrophages, and oligodendroglial cells. SPIO nanoparticles are sometimes modified with dextran, poly(ethylene

Levin, Judith G.

94

Collaborative Influence of Zinc Oxide and Triethylene Amine on the Corrosion Behavior of Mild Steel in Hydrogen Cyanide Environment

  CiteSeer

Summary: The analysis of the relative contribution of Zinc Oxide/Triethylene Amine mixes in controlling corrosion of mild steel in hydrogen cyanide environment is undertaken in this study. In earlier works [1,2], the individual effects of some organic and inorganic inhibitors were studied using 20ml of three different concentrations (0.5M, 1.0M and 1.5M) of the inhibitors from which diethylene amine from the organic family and zinc oxide from the inorganic family were reported to be very effective. However, in this work, mixes of zinc oxide and triethylene amine in varying volumetric combinations were considered at 1M concentration. The weight losses for the various mixes were very low ranging from 7.7mg to 44.0 mg, superior to the situation observed in [1] and [2]. The corrosion rates followed reducing pattern except for the solution containing 5ml zinc oxide which had a sudden rise from 0.0090 mmpy to 0.0484 mmpy after 168 hrs. The weight loss ratios were in fractions in the range 0.2857 to 0.8361. It is concluded that the mixture of triethylene amine and zinc oxide is effective with increasing volume of amine rather than the individual inorganic or organic inhibitor specie.

Muhammed Olawale; Hakeem Amuda; Theophilus Akinfolaranmi Fashanu; Ishola Lawal; Olusegun Olusoji Soremekun

95

Weatherability and Leach Resistance of Wood Impregnated with Nano-Zinc Oxide

  CiteSeer

Summary: The Author(s) 2010. This article is published with open access at Springerlink.com Abstract Southern pine specimens vacuum-treated with nano-zinc oxide (nano-ZnO) dispersions were evaluated for leach resistance and UV protection. Virtually, no leaching occurred in any of the nano-ZnOtreated specimens in a laboratory leach test, even at the highest retention of 13 kg/m 3. However, specimens treated with high concentrations of nano-ZnO showed 5865 % chemical depletion after 12 months of outdoor exposure. Protection from UV damage after 12 months exposure is visibly obvious on both exposed and unexposed surfaces compared to untreated controls. Graying was markedly diminished, although checking occurred in all specimens. Nano-zinc oxide treatment at a concentration of 2.5 % or greater provided substantial resistance to water absorption following 12 months of outdoor exposure compared to untreated and unweathered southern pine. We conclude that nano-zinc oxide can be utilized in new wood preservative formulations to impart resistance to leaching, water absorption and UV damage of wood. The use of trade or firm names in this publication is for reader information and does not imply endorsement by the U.S. Department of Agriculture of any product or service. The Forest Products Laboratory is maintained in cooperation with the University of Wisconsin. This article was written and prepared by U.S. Government employees on official time, and it is therefore in the public domain and not subject to copyright.

S. Nami Kartal; C. A. Clausen; F. Green Iii; S. Nami Kartal

96

Preparation of Polymer-Coated Functionalized Ferrimagnetic Iron Oxide Nanoparticles*

  MIT - DSpace

Summary: A simple chemical method to synthesize PMAA coated maghemite nanoparticles is described. Monomer methacrylic acid molecules were absorbed onto the synthesized ferrimagnetic nanoparticles followed by polymerization. The ...

Yu, Shi

97

A Novel Analysis of Voltage Distribution in Zinc Oxide Arrester using Finite Element method

  CiteSeer

Summary: Necessity to preserve the continuity of service and electric supply demands special attention towards protection of transmission lines and power apparatus from over voltages. Lightning arresters are devices used at sub-stations and at line terminations to discharge these over voltages, more particularly lightning surges and switching surges. The arresters installed today are almost all metal- oxide (MO) arresters without gaps. The distinctive feature of MO resistors is its extremely non-linear voltage characteristics, rendering unnecessary the disconnection of the resistors from the line through serial sparkgaps earlier used with Sic resistors. Ref. [1]The voltage distribution in a zinc oxide arrester under normal operating conditions has been observed to be non-uniform. The disc at the top are subject to higher voltage

R. Karthik

98

The Application of Molecular Beam Scattering on Low Temperature CO Oxidation on Au Nanoparticles

  Geosciences Websites

Summary: Xiaobo Zhou Department of Chemistry, University of Maine April 24, 2012 Abstract Gold is known to oxidation and corrosion. Following the pioneering work by Haruta et al. [1], many studies on gold oxidation reaction. Since then, the reaction mechanism of CO oxidation on gold nanoparticles has been widely

Thomas, Andrew

99

Local vapor transport synthesis of zinc oxide nanowires for ultraviolet-enhanced gas sensing This article has been downloaded from IOPscience. Please scroll down to see the full text article.

  Engineering Websites

Summary: Local vapor transport synthesis of zinc oxide nanowires for ultraviolet-enhanced gas sensing.1088/0957-4484/21/49/495502 Local vapor transport synthesis of zinc oxide nanowires for ultraviolet-enhanced gas sensing Lei Luo of nanowires into functional devices. The single-crystalline zinc oxide (ZnO) nanowires are grown locally

Lin, Liwei

100

VOLUME 85, NUMBER 5 P H Y S I C A L R E V I E W L E T T E R S 31 JULY 2000 Hydrogen as a Cause of Doping in Zinc Oxide

  Chemistry Websites

Summary: of Doping in Zinc Oxide Chris G. Van de Walle* Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg, Germany (Received 3 February 2000) Zinc oxide, a wide-band-gap semiconductor with many technological properties, zinc oxide is widely used for device ap- plications including transducers, phosphors


101

Synthesis and development of hydrophilic iron oxide nanoparticles for biomedical applications

  MIT - DSpace

Summary: Uniformly sized superparamagnetic iron oxide nanoparticles (SPIONs) with inorganic diameters of 3-35 nm were synthesized. New surface ligand coatings were designed and synthesized, and the resulting hydrophilic SPIONs in ...

Wei, He, Ph.D. Massachusetts Institute of Technology
2014-01-01

102

Lipidoid-Coated Iron Oxide Nanoparticles for Efficient DNA and siRNA delivery

  MIT - DSpace

Summary: The safe, targeted and effective delivery of gene therapeutics remains a significant barrier to their broad clinical application. Here we develop a magnetic nucleic acid delivery system composed of iron oxide nanoparticles ...

Jiang, Shan

103

Interfacial Bonding Stabilizes Rhodium and Rhodium Oxide Nanoparticles on Layered Nb Oxide and Ta Oxide Supports

  Materials Science Websites

Summary: . Interfacial covalent bonding, possibly strengthened by d-electron acid/base interactions, appear to stabilize stable. To understand this, the nanoparticle-support interaction was studied by isothermal titration


104

Vacancy Coalescence during Oxidation of Iron Nanoparticles Andreu Cabot, Victor F. Puntes, Elena Shevchenko, Yadong Yin,,| Lluis Balcells,

  Physics Websites

Summary: Vacancy Coalescence during Oxidation of Iron Nanoparticles Andreu Cabot, Victor F. Puntes, Elena at Berkeley, Berkeley, California 94720 Received April 12, 2007; E-mail: alivis@berkeley.edu Iron oxide iron nanoparticles and subsequently oxidize them. A wide range of morphologies and compositions have


105

Nanoparticle growth following photochemical a-and b-pinene oxidation at Appledore Island during International Consortium for

  Environmental Sciences and Ecology Websites

Summary: Nanoparticle growth following photochemical a- and b-pinene oxidation at Appledore Island during 2007; published 19 May 2007. [1] Nanoparticle events were observed 48 times in particle size August of 2004. Eighteen of the nanoparticle events showed particle growth and occurred during mornings

Russell, Lynn

106

Hyperthermia HeLa cell treatment with silica coated manganese oxide nanoparticles

  CERN Preprints

Summary: HeLa tumour cells incubated with ferromagnetic nanoparticles of manganese oxide perovskite La0.56(SrCa)0.22MnO3 were treated with a high frequency alternating magnetic field. The particles were previously coated with silica to improve their biocompatibility. The control assays made with HeLa tumour cells showed that cell survival and growth rate were not affected by the particle internalization in cells, or by the electromagnetic field on cells without nanoparticles. The application of an alternating electromagnetic field to cells incubated with this silica coated manganese oxide induced a significant cellular damage that finally lead to cell death by an apoptotic mechanism.

Villanueva, A; Alonso, JM; Rueda, T; Martnez, A; Crespo, P; Morales, MP; Fernandez, MA Gonzalez; Valdes, J; Rivero, G
2009-01-01

107

to Study the Influence of Oxidation Process and Zinc-Electroplating on Fatigue Life of Gray Cast Iron

  CiteSeer

Summary: to its microstructure, strength, ductility, residual stress and surface roughness etc. In general, fatigue life increase as the magnitude of surface roughness decrease or the surface hardness increases by surface treatment. As the consequence of conducted high temperature oxidation in subsurface layer of cast iron pores have been creating, coating by zinc-electroplating were filed with new phase and in this way the new zone with different properties was obtained. The aim of this study is to develop an artificial neural network (ANN) model for estimating the fatigue life of Gray cast iron after oxidation process and zinc-electroplating. Amulti-layer model was used the oxidation time, oxidation temperature, coating thickness, the surface roughness, hardness as inputs and the fatigue life as the output of the model. a variety of samples were prepared in different conditions of heat treatment cycle. The obtained experimental results were used for training the neural network. Efficiency test of this model showed reasonably good agreement between experimental and numerical results.

Asst Prof; Dr. Ali; S. Hammood; Haider Mahdi Lieth

108

Chemical Precipitation Synthesis of Ferric Chloride Doped Zinc Sulphide Nanoparticles and Their Characterization Studies

  CERN Preprints

Summary: Nanoparticles of Ferric Chloride doped ZnS has been synthesized by simple chemical precipitation method and characterized by XRD, SEM, UV-Vis analysis, Differential Thermal Analysis, Thermo Gravimetric Analysis and Differential Scanning Calorimetry. XRD patterns of the samples reveal particle size, specific surface area and the formation of cubic structure. The SEM images show that the cauliflower likes structure. Optical band gap values have been obtained from UV-Vis absorption spectra. It has also been found that energy band gap (Eg) increases with the increase in molar concentration of reactant solution. Thermal analysis measurement of the prepared sample shows that the thermal stability of pure ZnS is decreased due to increase in Ferric Chloride concentration. Undoped ZnS is more thermal stable when compared to FeCl3 doped ZnS.

Theivasanthi, T; Alagar, M; 10.7598/cst2013.207
2013-01-01

109

Size-dependant heating rates of iron oxide nanoparticles for magnetic fluid hyperthermia

  Materials Science Websites

Summary: of organometallics method we have synthesized high-quality, iron oxide nanoparticles of tailorable size up to $15 nm and transferred them to a water phase by coating with a biocompatible polymer. The magnetic behavior) or increasing the field strength used for treatment. This work focuses on high-quality, monodisperse

Krishnan, Kannan M.

110

A photonic crystal biosensor assay for ferritin utilizing iron-oxide nanoparticles

  Biology and Medicine Websites

Summary: 23 January 2014 Keywords: Biosensor Ferritin Iron deficiency Iron-oxide nanoparticles Photonic crystal a b s t r a c t Iron deficiency anemia afflicts 1 in 3 individuals, mostly women and children biosensor as an immunodiagnostic platform for detection of serum ferritin, a biomarker for iron deficiency

Cunningham, Brian

111

Thermally Activated, Inverted Interfacial Electron Transfer Kinetics: High Driving Force Reactions between Tin Oxide Nanoparticles and

  Renewable Energy Websites

Summary: evidently being amplified via an entropic driving force effect. Finally, the overall pattern of reactivityThermally Activated, Inverted Interfacial Electron Transfer Kinetics: High Driving Force Reactions: The kinetics and mechanism of fast electron transfer (ET) between tin oxide nanoparticles and electrostatically


112

Ultraclean Two-Stage Aerosol Reactor for Production of Oxide-Passivated Silicon Nanoparticles for Novel

  Materials Science Websites

Summary: Ultraclean Two-Stage Aerosol Reactor for Production of Oxide-Passivated Silicon Nanoparticles an ultraclean two-stage aerosol process reactor and 200 mm wafer deposition chamber in order to integrate Si by thermal decomposition of silane gas in a reactor that has been optimized to produce nonagglomerated

Atwater, Harry

113

DEVELOPMENTAL PHYTOTOXICITY OF METAL OXIDE NANOPARTICLES TO ARABIDOPSIS THALIANA

  Environmental Management and Restoration Websites

Summary: toxicity indicators (seed germination, root elongation, and number of leaves) were quantified following for the observed toxicity. Inhibition of seed germination by ZnO depended on particle size, with nanoparticles soybean germination and growth was promoted by a mixture of nano-sized silicon dioxide (nSiO2) and nano

Alvarez, Pedro J.

114

Size-selected Pt Nanoparticles Synthesized via Micelle Encapsulation: Effect of Pretreatment and Oxidation State on the Activity for Methanol Decomposition and

  Engineering Websites

Summary: -synthesized Pt nanoparticles supported on ZrO2 was studied for methanol decomposition and oxidation reactions, methanol decomposition, methanol oxidation, Pt oxide, PtO, PtO2, ZrO2, XPS, TEM, AFM, mass spectrometry

Kik, Pieter

115

TEM characterization of diblock copolymer templated iron oxide nanoparticles: Bulk solution and thin film surface doping approach

  Engineering Websites

Summary: oxide nanocomposites: in the `bulk solution doping' method, a mixture of metal salts are associated salt aqueous solution. Nanoparticle aggregation is prevented by reducing their mobility within solid nanoparticles and aggregates are controlled by soaking the polymer film in metal salt solution for varying time

Kofinas, Peter

116

Colloidally Synthesized Monodisperse Rh Nanoparticles Supported on SBA-15 for Size- and Pretreatment-Dependent Studies of CO Oxidation

  University of California eScholarship Repository

Summary: size effects in catalysis; this study demonstrates afor solution phase catalysis by a few studies 11,16 and ourstudies involving the use of PVP protected metal nanoparticles supported on oxides for gas phase catalysis.

Grass, Michael E.
2010-01-01

117

ccsd-00001677,version1-10Jun2004 Submitted to Applied Surface Science (EMRS-2004 # N-I.3) Production of Gas Phase Zinc Oxide Nanoclusters by Pulsed Laser Ablation

  Physics Websites

Summary: ) Production of Gas Phase Zinc Oxide Nanoclusters by Pulsed Laser Ablation I. Ozerov,1, A. V. Bulgakov,2 D. K ablation of sintered ZnO targets by a pulsed ArF laser in the presence of oxygen ambient gas. The PL.05.Ys, 78.55.Et, 61.80.Ba. Keywords: Zinc oxide; Nanoclusters; Photoluminescence; Laser ablation. I

Paris-Sud XI, Universit de

118

Nitric oxide reactions of bio-Inspired zinc and cobalt complexes

  MIT - DSpace

Summary: Chapter 1. Bioinorganic Chemistry of Nitric Oxide and of Some of Its Targets The redox-active nature of nitric oxide (NO) regulates the chemistry and roles of NO in biology. The interactions of NO with nitric oxide synthases, ...

Kozhukh, Julia, 1985-
2012-01-01

119

Precipitation-Redispersion of Cerium Oxide Nanoparticles with Poly(Acrylic Acid) : Towards Stable Dispersions

  Condensed Matter (arXiv)

Summary: We exploit a precipitation-redispersion mechanism for complexation of short chain polyelectrolytes with cerium oxide nanoparticles to extend their stability ranges. As synthesized, cerium oxide sols at pH 1.4 consist of monodisperse cationic nanocrystalline particles having a hydrodynamic diameter of 10 nm and a molecular weight 400000 gmol-1. We show that short chain uncharged poly(acrylic acid) at low pH when added to a cerium oxide sols leads to macroscopic precipitation. As the pH is increased, the solution spontaneously redisperses into a clear solution of single particles with an anionic poly(acrylic acid) corona. The structure and dynamics of cerium oxide nanosols and their hybrid polymer-inorganic complexes in solution are investigated by static and dynamic light scattering, X-ray scattering, and by chemical analysis. Quantitative analysis of the redispersed sol gives rise to an estimate of 40 - 50 polymer chains per particle for stable suspension. This amount represents 20 % of the mass of the polymer-nanoparticle complexes. This complexation adds utility to the otherwise unstable cerium oxide dispersions by extending the range of stability of the sols in terms of pH, ionic strength and concentration.

A. Sehgal; Y. Lalatonne; J. -F. Berret; M. Morvan
2005-07-21

120

Electrogenerated Chemiluminescence of Partially Oxidized Highly Oriented Pyrolytic Graphite Surfaces and of Graphene Oxide Nanoparticles

  Engineering Websites

Summary: Electrogenerated Chemiluminescence of Partially Oxidized Highly Oriented Pyrolytic Graphite electrochemically oxidized highly oriented pyrolytic graphite (HOPG) and from a suspension of graphene oxide, and electrical devices. For example, graphene, a one-atom thick sheet of carbon, and its oxidized form, graphene


121

Ultrathin amorphous zinc-tin-oxide buffer layer for enhancing heterojunction interface quality in metal-oxide solar cells

  MIT - DSpace

Summary: We demonstrate a tunable electron-blocking layer to enhance the performance of an Earth-abundant metal-oxide solar-cell material. A 5 nm thick amorphous ternary metal-oxide buffer layer reduces interface recombination, ...

Heo, Jaeyeong

122

Biol Trace Elem Res . Author manuscript Burn-induced oxidative stress is altered by a low zinc status: kinetic study

  Computer Technologies and Information Sciences Websites

Summary: by a low zinc status: kinetic study in burned rats fed a low zinc diet Richard Claeyssen 1 2 , Maud.agay@crssa.net > Abstract As an initial subdeficient status of zinc, considered as an essential antioxidant trace element, is frequent in burned patients, we aim to assess the effects of low zinc dietary intakes on burn induced

Boyer, Edmond

123

Size Effect of Ruthenium Nanoparticles in Catalytic Carbon Monoxide Oxidation

  University of California eScholarship Repository

Summary: 2D model catalysts based on Ru NPs as a function of Ru size.catalysts under oxidizing reaction conditions was measured as a functioncatalysts, and Figure 4 presents the change of TOF and activation energy (E a ) as a function

Joo, Sang Hoon
2011-01-01

124

Efficient Formation of Iron Nanoparticle Catalysts on Silicon Oxide by

  Materials Science Websites

Summary: - growth nanotube purification and assembly.7-10 Lying at the heart of nanotube CVD is catalytic with Fe catalyst supported on aluminum oxide powders.2 While clean SWNTs emanating from catalytic sites were readily obtained, the catalytic regions on the substrate were not clean. Mound-like patterned

Javey, Ali

125

Er doped oxide nanoparticles in silica based optical fibres

  CERN Preprints

Summary: Erbium doped materials are of great interest in optical telecommunications due to the Er3+ intra-4f emission at 1.54 ?m. Erbium doped fibre amplifiers (EDFA) were developed in silica glass because of the low losses at this wavelength and the reliability of this glass. Developments of new rare earth doped fibre amplifiers aim to control their spectroscopic properties including shape and width of the gain curve and optical quantum efficiency. Standard silica glass modifiers, such as aluminium, result in very good properties in current EDFA. However, for more drastic spectroscopic changes, more important modifications of the rare earth ions local environment are required. To address this aim, we present a fibre fabrication route creating rare earth doped calcia?silica or calcia?phosphosilica nanoparticles embedded in silica glass. By adding alkaline earth elements such as calcium, in low concentration, one can obtain a glass with an immisci- bility gap so that phase separation occurs with an appropriate heat tre...

Blanc, Wilfried; Paul, M C
2009-01-01

126

Interfacial activity of phosphonated-polyethylene glycol functionalized cerium oxide nanoparticles

  Condensed Matter (arXiv)

Summary: In a recent publication, we have highlighted the potential of phosphonic acid terminated PEG oligomers to functionalize strong UV absorption cerium oxide nanoparticles[1], which yield suspensions that are stable in aqueous or organic solvents and are redispersible in different solvent after freeze-drying. In the present work, we highlight the interfacial activity of the functional ceria nanoparticles and their potential to modify hydrophobic surfaces. We first investigated Phosphonated-PEG amphiphilic oligomers behavior as strong surface active species forming irreversibly adsorbed layers. We then show that the oligomers interfacial properties translate to the functional nanoparticles. In particular, the addition of a small fraction of phosphonated-PEG oligomers with an extra C16 aliphatic chain (stickers) into the formulation enabled the tuning of i) the nanoparticles adsorption at the air/water, polystyrene/water, oil/water interfaces and ii) the particle/particle interaction in aqueous solutions. We also found that dense and closely packed two dimensional monolayers of nanoceria can be formed by spontaneous adsorption or surface compression using a Langmuir trough. A hexagonal organization controlled by reversible and repulsive repulsion has been characterized by GISAXS. Mono- or multilayers can also be stably formed or transferred on solid surfaces. Our results are key features in the field of polymer surface modification, solid stabilized emulsions (Pickering) or supracolloidal assemblies.

L. Qi; J. Fresnais; P. Muller; O. Theodoly; J. -F. Berret; J. -P. Chapel
2013-05-04

127

Correlating Catalytic Methanol Oxidation with the Structure and Oxidation State of Size-Selected Pt Nanoparticles

  Engineering Websites

Summary: Correlating Catalytic Methanol Oxidation with the Structure and Oxidation State of Size-Selected Pt-selected 1. INTRODUCTION The partial and total catalytic oxidation of methanol are important chemical or palladium, which are able to convert methanol, higher alcohols, hydrocarbons, and carbon monoxide to CO2

Kik, Pieter

128

Journal of Crystal Growth 274 (2005) 126131 Well-aligned zinc oxide nanorods and nanowires prepared

  Materials Science Websites

Summary: N nanowires, MgO nanowires, SnO2 nanowires, and ZnO nanowires due to various remarkable physical and chemical with Au nanoparticles at 900 1C. Using nickel nitrate as catalyst, Lyu et al. [18] also grew ZnO nanowires

Gao, Hongjun

129

Electrical and Optical Properties of Transparent Conducting Homologous Compounds in the IndiumGalliumZinc Oxide System

  Chemistry Websites

Summary: Electrical and Optical Properties of Transparent Conducting Homologous Compounds in the Indium­Gallium­Zinc sputtered from polycrystalline targets that contained 10­ 60 at.% zinc. In studies of pulsed

Poeppelmeier, Kenneth R.

130

Rapid Pharmacokinetic and Biodistribution Studies Using Cholorotoxin-Conjugated Iron Oxide Nanoparticles: A Novel Non-Radioactive Method

  CiteSeer

Summary: Background: Recent advances in nanotechnology have led to the development of biocompatible nanoparticles for in vivo molecular imaging and targeted therapy. Many nanoparticles have undesirable tissue distribution or unacceptably low serum half-lives. Pharmacokinetic (PK) and biodistribution studies can help inform decisions determining particle size, coatings, or other features early in nanoparticle development. Unfortunately, these studies are rarely done in a timely fashion because many nanotechnology labs lack the resources and expertise to synthesize radioactive nanoparticles and evaluate them in mice. Methodology/Principal Findings: To address this problem, we developed an economical, radioactivity-free method for assessing serum half-life and tissue distribution of nanoparticles in mice. Iron oxide nanoparticles coated with chitosan and polyethylene glycol that utilize chlorotoxin as a targeting molecule have a serum half-life of 78 hours and the particles remain stable for extended periods of time in physiologic fluids and in vivo. Nanoparticles preferentially distribute to spleen and liver, presumably due to reticuloendothelial uptake. Other organs have very low levels of nanoparticles, which is ideal

Michelle Jeung-eun Lee; Omid Veiseh; Narayan Bhattarai; Conroy Sun; Stacey J. Hansen; Sue Knoblaugh; Donghoon Lee; Richard Ellenbogen; Miqin Zhang; James M. Olson

131

Organically Capped Silicon Nanoparticles with Blue Photoluminescence Prepared by Hydrosilylation Followed by Oxidation

  Materials Science Websites

Summary: -emitting silicon nanoparticles (1 nm in diameter). The preparation of organically protected silicon nanoparticles the possibility of using silicon nanoparticles in potential applications such as full-color displ

Swihart, Mark T.

132

Design and synthesis of novel functionalized sensors for the biological imaging of zinc(II) and nitric oxide

  MIT - DSpace

Summary: CHAPTER 1: Fluorescent Sensors for the Biological sensing of Zinc(II) A variety of fluorescent techniques have been developed for the in vivo sensing of Zn2+. This chapter presents a brief overview of techniques used to ...

Won, Annie C., 1983-
2005-01-01

133

Room-temperature Formation of Hollow Cu2O Nanoparticles

  University of California eScholarship Repository

Summary: study the oxidation of the nanoparticles. The monodispersethe nanoparticles was maintained during the oxidation. High-nanoparticles. The synthesis of hollow metal oxide nanocrystals usually involves two distinct processes: surface oxidation (

Hung, Ling-I
2011-01-01

134

Purification of molybdenum oxide, growth and characterization of medium size zinc molybdate crystals for the LUMINEU program

  CERN Preprints

Summary: The LUMINEU program aims at performing a pilot experiment on neutrinoless double beta decay of 100Mo using radiopure ZnMoO4 crystals operated as scintillating bolometers. Growth of high quality radiopure crystals is a complex task, since there are no commercially available molybdenum compounds with the required levels of purity and radioactive contamination. This paper discusses approaches to purify molybdenum and synthesize compound for high quality radiopure ZnMoO4 crystal growth. A combination of a double sublimation (with addition of zinc molybdate) with subsequent recrystallization in aqueous solutions (using zinc molybdate as a collector) was used. Zinc molybdate crystals up to 1.5 kg were grown by the low-thermal-gradient Czochralski technique, their optical, luminescent, diamagnetic, thermal and bolometric properties were tested.

Shlegel, V N; Boiko, R S; Chapellier, M; Chernyak, D M; Coron, N; Danevich, F A; Decourt, R; Degoda, V Ya; Devoyon, L; Drillien, A; Dumoulin, L; Enss, C; Fleischmann, A; Gastaldo, L; Giuliani, A; Gros, M; Herve, S; Ivanov, I M; Kobychev, V V; Kogut, Ya P; Koskas, F; Loidl, M; Magnier, P; Makarov, E P; Mancuso, M; de Marcillac, P; Marnieros, S; Marrache-Kikuchi, C; Nasonov, S G; Navick, X F; Nones, C; Olivieri, E; Paul, B; Penichot, Y; Pessina, G; Plantevin, O; Poda, D V; Redon, T; Rodrigues, M; Strazzer, O; Tenconi, M; Torres, L; Tretyak, V I; Vasiliev, Ya V; Velazquez, M; Viraphong, O; Zhdankov, V N
2013-01-01

135

Synthesis and Characterization of Magnetic Nanoparticles with High Magnetization and Good Oxidation Resistibility

  MIT - DSpace

Summary: Magnetic nanoparticles attract increasing attention because of their current and potential biomedical applications, such as, magnetically targeted and controlled drug delivery, magnetic hyperthermia and magnetic extraction. ...

Yu, Shi

136

Preparation of PtNi Nanoparticles for the Electrocatalytic Oxidation of Methanol

  MIT - DSpace

Summary: Carbon supported PtNi nanoparticles were prepared by hydrazine reduction of Pt and Ni precursor salts under different conditions, namely by conventional heating (PtNi-1), by prolonged reaction at room temperature (PtNi-2) ...

Deivaraj, T.C.

137

Surfactant Organic Molecules Restore Magnetism in Metal-Oxide Nanoparticle Surfaces

  Materials Science Websites

Summary: electron microscopy techniques combined with theoretical calculations. For the first time, we use electron. In this Letter, we study the unusual magnetic properties of high-quality Fe3O4 nanoparticles by means of advanced

Pennycook, Steve

138

Electron small polarons and their mobility in iron (oxyhydr)oxide nanoparticles

  University of California eScholarship Repository

Summary: decay function. This transient signal represents thethe intensity of the transient ?XA signal at 7.125 keV tosignal) these spectra were observed reproducibly during our studies of dye-sensitized nanoparticles. No transient

Katz, J.E.
2014-01-01

139

Deposition and diffusion of plasma sputtered platinum nanoparticles in porous anodic alumina oxide.

  Physics Websites

Summary: ,14], Si[15], Bi[16], PbO[17], SnO2[18], NiO[19], LiMn2O4[20] nanowires and nanotubes have already been2/10 Deposition and diffusion of plasma sputtered platinum nanoparticles in porous anodic alumina the distribution of the nanoparticles, is not only helpful for studying the diffusion process, it is also

Paris-Sud XI, Université de

140

Synthesis and photoluminescence of zinc sulfide nanowires by simple thermal chemical vapor deposition

  Chemistry Websites

Summary: Synthesis and photoluminescence of zinc sulfide nanowires by simple thermal chemical vapor present a synthetic method of zinc sulfide nanowires by a simple and safe reaction of zinc oxide and iron commercially omnipresent zinc oxide (ZnO) and iron sulfide (FeS) powder without pre-treatments (pulverization

Kim, Bongsoo

141

Nanoparticles as Reactive Precursors: Synthesis of Alloys, Intermetallic Compounds, and Multi-Metal Oxides Through Low-Temperature Annealing and Conversion Chemistry

  Texas A&M University - TxSpace

Summary: for formic acid oxidation while Pt3Sn/Vulcan XC-72 and Cu3Pt/y-Al2O3 catalyzed CO oxidiation at lower temperatures than supported Pt. Intermetallic nanoparticles of Pd were synthesized by conversion chemistry methods previously mentioned and were supported...

Bauer, John C.
2010-07-14

142

Efficient Electrocatalytic Oxidation of Formic Acid Using Au@Pt Dendrimer-Encapsulated Nanoparticles

  Chemistry Websites

Summary: found that carbon-supported Pd is highly active for formic acid oxidation, because it favors the direct oxidation pathway.9 However, Pd/C suffers significant loss in activity during formic acid oxidation due competitive reduction by the hydroxyl groups of the dendrimers. Pt and Au DEN-modified electrodes were

Henkelman, Graeme

143

A Scalable Turbulent Mixing Aerosol Reactor for Oxide-Coated Silicon Nanoparticles

  Materials Science Websites

Summary: milliseconds. The short residence time allows processing of high number concentration aerosols, in excess of nanoparticles has been the subject of numerous investigations employing the evapo- ration/condensation method,1 of the devices synthesized by this route was very promising, a number of challenges remain to be overcome before

Atwater, Harry

144

A novel strategy for surface modification of superparamagnetic iron oxide nanoparticles for lung cancer imaging

  Biology and Medicine Websites

Summary: -step procedure for the surface functionalization of SPIO nanoparticles with a lung cancer-targeting peptide and demonstrate high T2 relaxivity. The nanoprobes are specific in targeting avb6expressing lung cancer cells of the proposed SPIO system may provide a powerful nanoplatform for the molecular diagnosis of lung cancer

Gao, Jinming

145

Effect of electric field on the photoluminescence of polymer-inorganic nanoparticles composites

  Condensed Matter (arXiv)

Summary: We report on the effect of electric field on the photoluminescence, PL, from a composite consisting of a conjugated polymer mixed with zinc oxide nanoparticles. We have found that in the absence of electric field PL emission from the composite film has two maxima in the blue and green-yellow regions. Application of a voltage bias to planar gold electrodes suppresses the green-yellow emission and shifts the only PL emission maximum towards the blue region. Current-voltage characteristics of the polymer-nanoparticles composite exhibit the non-linear behavior typical of non-homogeneous polymer-inorganic structures. Generation of excited states in the composite structure implies the presence of several radiative recombination mechanisms including formation of polymer-nanoparticle complexes including exciplex states and charge transfer between the polymer and nanoparticle that can be controlled by an electric field.

A. N. Aleshin; I. P. Shcherbakov; E. L. Alexandrova; E. A. Lebedev
2008-01-29

146

Electrostatic co-assembly of iron oxide nanoparticles and polymers : towards the generation of highly persistent superparamagnetic nanorods

  Condensed Matter (arXiv)

Summary: A paradigm proposed recently by Boal et al. (A.K. Boal et al., Nature 404, 746-748, 2000) deals with the possibility to use inorganic nanoparticles as building blocks for the design and fabrication of colloidal and supracolloidal assemblies. It is anticipated that these constructs could be made of different shapes, patterns and functionalities and could constitute the components of future nanodevices including sensors, actuators or nanocircuits. Here we report a protocol that allowed us to fabricate such nanoparticle aggregates. The building blocks of the constructs were anionically coated iron oxide nanocrytals (superparamagnetic, size 7 nm) and cationic-neutral block copolymers. We have shown that the electrostatic interactions between charged species can be controlled by tuning the ionic strength of the dispersion. Under appropriate conditions, the control of electrostatics resulted in the elaboration of spherical or elongated aggregates at the micrometer length scale. The elongated aggregates were found to be rod-like, with diameters of a few hundred nanometers and lengths between 1 and 50 micrometers. In addition to their remarkable stiffness, the nanostructured rods were found to reorient along with an externally applied magnetic field, in agreement with the laws of superparamagnetism.

J. Fresnais; J. -F. Berret; B. Frka-Petesic; O. Sandre; R. Perzynski
2009-01-17

147

The role of the coating and aggregation state in the interactions between iron oxide nanoparticles and 3T3 fibroblasts

  CERN Preprints

Summary: Recent nanotoxicity studies revealed that the physico-chemical characteristics of engineered nanomaterials play an important role in the interactions with living cells. Here, we report on the toxicity and uptake of the iron oxide sub-10 nm nanoparticles by NIH/3T3 mouse fibroblasts. Coating strategies include low-molecular weight ligands (citric acid) and polymers (poly(acrylic acid), MW = 2000 g mol-1). We find that most particles were biocompatible, as exposed cells remained 100% viable relative to controls. The strong uptake shown by the citrate-coated particles is related to the destabilization of the dispersions in the cell culture medium and their sedimentation down to the cell membranes.

Safi, Malak; 10.1016/j.phpro.2010.11.059
2011-01-01

148

Preventing corona effects: multi-phosphonic acid poly(ethylene glycol) copolymers for stable stealth iron oxide nanoparticles

  CERN Preprints

Summary: When disperse in biological fluids, engineered nanoparticles are selectively coated with proteins, resulting in the formation of a protein corona. It is suggested that the protein corona is critical in regulating the conditions of entry into the cytoplasm of living cells. Recent reports describe this phenomenon as ubiquitous and independent of the nature of the particle. For nanomedicine applications however, there is a need to design advanced and cost-effective coatings that are resistant to protein adsorption and that increase the biodistribution in vivo. In this study, phosphonic acid poly(ethylene glycol) copolymers were synthesized and used to coat iron oxide particles. The copolymer composition was optimized to provide simple and scalable protocols as well as long-term stability in culture media. It is shown that polymers with multiple phosphonic acid functionalities and PEG chains outperform other types of coating, including ligands, polyelectrolytes and carboxylic acid functionalized PEG. PEGylated pa...

Torrisi, V; Vitorazi, L; Crouzet, Q; Marletta, G; Loubat, C; Berret, J -F
2014-01-01

149

Research Article Removal of Gutta-Percha/Zinc-Oxide-Eugenol Sealer or Gutta-Percha/Epoxy Resin Sealer from Severely Curved Canals: An In Vitro Study

  CiteSeer

Summary: Copyright 2011 Santhoshini Reddy et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. The aim of this study was to compare the cleanliness of root canal walls after retreatment using two rotary retreatment files to hand instruments in severely curved canals obturated with gutta-percha and two different sealers. Single rooted mandibular premolars (n = 90) with root curvatures were instrumented and obturated with gutta-percha and an epoxy resin (Group 1, n = 45) or zinc oxide eugenol sealer (Group 2, n = 45). Following retreatment of the specimens (n = 15 ProTaper Universal Retreatment Files (Subgroup B) or R-Endo retreatment files (Subgroup C) after 1 month, split specimens were examined under a stereomicroscope and the percentage of remaining root filling material was statistically compared using one way ANOVA with Bonferroni adjustment for multiple comparisons (P = 0.05). The R-Endo system performed significantly better than the other

Santhoshini Reddy; Prasanna Neelakantan; Mohammad Ali Saghiri; Mehrdad Lotfi; Ragiri Venkata Subbarao; Franklin Garcia-godoy; James L. Gutmann

150

The Synthesis of Novel Metal and Metal Oxide Nanoparticles with Applications Towards Catalysis

  University of California eScholarship Repository

Summary: coupled with catalysts both for water oxidation and protoncatalysts for this reaction, and that smaller particles provide a lower overpotential for the water oxidationoxidation catalysts, 20 and various metal spinel oxide ferrites have been shown to be active as anodes for the water

McMurdo, Meredith Joanne
2010-01-01

151

Hydrothermal growth of large-scale micropatterned arrays of ultralong ZnO nanowires and nanobelts on zinc substrate{

  Chemistry Websites

Summary: on zinc substrate{ Conghua Lu, Limin Qi,* Jinhu Yang, Li Tang, Dayong Zhang and Jiming Ma Received (in-like micropatterns have been fabricated by hydro- thermal oxidation of zinc foil in aqueous alkaline (NH4)2S2O8/nanoneedle arrays on a zinc substrate was recently realized by the natural surface-oxidation of zinc foil

Qi, Limin

152

Single photon emission from ZnO nanoparticles

  CERN Preprints

Summary: Room temperature single photon emitters are very important resources for photonics and emerging quantum technologies. In this work we study single photon emission from defect centers in 20 nm zinc oxide (ZnO) nanoparticles. The emitters exhibit bright broadband fluorescence in the red spectral range centered at 640 nm with polarized excitation and emission. The studied emitters showed continuous blinking, however, bleaching can be suppressed using a polymethyl methacrylate (PMMA) coating. Furthermore, hydrogen termination increased the density of single photon emitters. Our results will contribute to the identification of quantum systems in ZnO.

Choi, Sumin; Castelletto, Stefania; Ton-That, Cuong; Phillips, Matthew R; Aharonovich, Igor
2014-01-01

153

Multimillion Atom Simulations of Dynamics of Oxidation of an Aluminum Nanoparticle and Nanoindentation on Ceramics

  Computer Technologies and Information Sciences Websites

Summary: performed to study nanoindentation on crystalline, amorphous, and nanocrystalline silicon nitride energy release associated with Al-O bonding. In the canonical ensemble, an amorphous oxide layer and silicon carbide. Simulation on nanocrystalline silicon carbide reveals unusual deformation mechanisms

Southern California, University of

154

Oxygen Chemisorption, Formation, and Thermal Stability of Pt Oxides on Pt Nanoparticles supported on

  Materials Science Websites

Summary: microscopy (TEM), in situ X-ray photoelectron spectroscopy (XPS), and temperature-programmed desorption (TPD of automobile exhaust gases in CO oxidation reactions, NOx reduction, and the combustion of volatile organic

Kik, Pieter

155

Non-sulfide zinc deposits of the Moroccan High Atlas: Multi-scale characterization and origin

  Physics Websites

Summary: Non-sulfide zinc deposits of the Moroccan High Atlas: Multi-scale characterization and origin-silicates and hydrated phases. Direct replacement of primary sulfides is accompanied by precipitation of zinc non of sulfides; Moroccan High Atlas 1) Introduction Non-sulfide zinc ores, also called calamines or zinc oxides

Paris-Sud XI, Université de

156

Synthesis of Zinc Ferrites in RF Thermal Plasma Reactor , I. Mohai1

  Materials Science Websites

Summary: Synthesis of Zinc Ferrites in RF Thermal Plasma Reactor L. Gál1* , I. Mohai1 , I. Mészáros3 , J Formation of nanosized zinc ferrite spinels was studied from iron- and zinc oxide powders and corresponding of nanosized, inverse zinc ferrites of high saturation magnetisation were established. It was proved

Gubicza, Jenõ

157

Controlled oxidation of FeCo magnetic nanoparticles to produce faceted FeCo/ferrite nanocomposites for rf heating applications

  Materials Science Websites

Summary: for polydisperse FeCo magnetic nanoparticles MNPs synthesized using an induction plasma torch. X-ray diffraction and rates for plasma torch synthesized FeCo nanoparticles.1 FeCo nanoparticles are being studied plasma torch PT .3 We started with Fe50Co50 alloy precursor powders produced by gas atomization6

Laughlin, David E.

158

New insight into artifactual phenomena during in vitro toxicity assessment of engineered nanoparticles: study of TNF-adsorption on alumina oxide nanoparticle

  Computer Technologies and Information Sciences Websites

Summary: engineered NP [aluminum oxide hydroxide, AlO(OH)]. The rate of TNF- degradation and its adsorption (on by inducing inflammation or oxidative stress. In particular, boehmite NP [aluminum oxide hydroxide, Al

Boyer, Edmond

159

High-Pressure Catalytic Reactions of C6 Hydrocarbons on Platinum Single-Crystals and nanoparticles: A Sum Frequency Generation Vibrational Spectroscopic and Kinetic Study

  University of California eScholarship Repository

Summary: Oxidation and reduction of the Pt nanoparticles afternanoparticles before and after reduction, during benzene hydrogenation, and after oxidation.nanoparticles. Since the turnover rates after the oxidation/

Bratlie, Kaitlin
2007-01-01

160

Observation of asymmetric spectrum broadening induced by silver nanoparticles in a heavy-metal oxide glass

  CERN Preprints

Summary: We demonstrate experimentally and support by a theoretical analysis an effect of asymmetric spectrum broadening, which results from doping of silver nanoparticles into a heavy-glass matrix, 90(0.5WO3-0.3SbPO4-0.2PbO)-10AgCl. The strong dispersion of the effective nonlinear coefficient of the composite significantly influences the spectral broadening via the self-phase modulation, and leads to a blue upshift of the spectrum. Further extension of the spectrum towards shorter wavelengths is suppressed by a growing loss caused by the plasmon resonance in the silver particles. The red-edge spectral broadening is dominated by the stimulated Raman Scattering.

Zhavoronkov, N; Bregadiolli, B A; Nalin, M; Malomed, B A
2011-01-01

161

Formation and Thermal Stability of Platinum Oxides on Size-Selected Platinum Nanoparticles: Support Effects

  Engineering Websites

Summary: O2, ZrO2, and TiO2 thin films. The studies were carried out in ultrahigh vacuum (UHV) by temperature to 600 K upon annealing in UHV. The stability of oxidized Pt species was found to be enhanced on ZrO2 as by the post-deposition treatment. Spherical Pt NPs are stable on SiO2, ZrO2, and TiO2 after in situ ligand

Kik, Pieter

162

Deposition and diffusion of plasma sputtered platinum nanoparticles in porous anodic alumina oxide.

  CiteSeer

Summary: Plasma sputtering deposition of Platinum thin films is studied on porous anodic aluminum oxide (AAO) template. The size effect of AAO cylindrical pores is shown to influence the diffusion of atoms in the porous layer. The resulting maximum reached depth of platinum varied from 2 ?m to 20 ?m, and the density on the surface is lowered from 23 g.cm-2 to 5 g.cm-2 as the pore diameter increased from 40 nm to 320 nm. The pore diameter is decreasing as Pt is deposited. Sputtered Pt is observed to grow as clusters on the surface and along the pore walls.

Sujuan Wu; Pascal Brault; Cong Wang
2009-01-01

163

The effect of particle size on the structural transitions in zinc sulfide S. B. Qadri and E. F. Skelton

  Materials Science Websites

Summary: The effect of particle size on the structural transitions in zinc sulfide S. B. Qadri and E. F radiation were carried out to 20.0 GPa. Nanoparticles initially in the zinc-blende and wurtzite phases both transformed to the NaCl phase under the application of pressure. The zinc-blende particles, which were of 2

Dinsmore, Tony

164

Nanostructured fumed metal oxides for thermal interface pastes Chuangang Lin D. D. L. Chung

  Engineering Websites

Summary: +Business Media, LLC 2007 Abstract Fumed metal oxides (13 nm aluminum oxide particles and 20­25 nm zinc oxide of either 4.0 vol.% silane coated fumed zinc oxide or 2.4 vol.% silane coated alumina gives thermal pastes that are more effective than commercial thermal pastes (Ceramique and Shin-Etsu). Fumed zinc oxide is superior

Chung, Deborah D.L.

165

DOI: 10.1002/zaac.201000430 Evidence for Tetrahedral Zinc in Amorphous In22xZnxSnxO3 (a-ZITO)

  Chemistry Websites

Summary: conducting oxides; Transparent oxide semiconductor; Zinc indium tin oxide; Absorption spectroscopy; Zinc tetrahedra in a- Introduction Amorphous transparent conducting oxides (TCOs) and trans- parent oxide,[d] and Kenneth R. Poeppelmeier*[a] In Memory of Professor Hans Georg von Schnering Keywords: Transparent

Poeppelmeier, Kenneth R.

166

Characterizing oxides with low cation substitution Ram Seshadri

  Mathematics Websites

Summary: Baars, Seshadri, J. Mater. Chem. (2009) #12;Outline: 1. Cation substituted zinc oxides: Isovalent substitution) 1418; 20 (2008) 6567.] #12;Cation substituted zinc oxides #12;Cation-substituted ZnO: Magnetism

Akhmedov, Azer

167

Semiconducting and Piezoelectric Oxide Nanostructures Induced by Polar Surfaces**

  Materials Science Websites

Summary: transport along the nanobelt has been mea- sured.[14] Zinc oxide (ZnO) is the most typical and successful example of oxide nanobelts. Zinc oxide has three key advan- tages. First, it is a semiconductor for biomedical applications without coating. Zinc is also an element that is needed by everyone. The daily

Wang, Zhong L.

168

Metabolic networks to combat zinc toxicity in Pseudomonas fluorescens Azhar Alhasawi

  Chemistry Websites

Summary: Metabolic networks to combat zinc toxicity in Pseudomonas fluorescens By Azhar Alhasawi Thesis from zinc (Zn), an environmental pollutant. Under Zn stress, this microbe survived despite the fact environment. This metabolic shift is critical to counter the oxidative stress triggered by zinc toxicity

Appanna, Vasu

169

Zinc sorption to biogenic hexagonal-birnessite particles within a hydrated bacterial biofilm

  Physics Websites

Summary: Zinc sorption to biogenic hexagonal-birnessite particles within a hydrated bacterial biofilm Brandy- monas putida. The biogenic Mn oxide is a c-disordered birnessite with hexagonal layer symmetry. Zinc spectra. Zinc speciation was found to change as Zn loading to the biosorbent [bacterial cells


170

Synthesis of Nickel-Zinc Ferrites in RF Thermal Plasma Reactor J. Szpvlgyi1,2*

  Materials Science Websites

Summary: Synthesis of Nickel-Zinc Ferrites in RF Thermal Plasma Reactor J. Szépvölgyi1,2* , I. Mohai1 , L POB 32, Budapest, Hungary Abstract Nickel-zinc ferrites usually exhibit high saturation mag. In this paper results of thermal plasma synthesis of nanosized nickel-zinc ferrites from oxide powders

Gubicza, Jenõ

171

Ultramicroscopy 84 (2000) 149157 Near-eld scanning optical microscopy of zinc-porphyrin

  Chemistry Websites

Summary: Ultramicroscopy 84 (2000) 149±157 Near-®eld scanning optical microscopy of zinc-porphyrin crystals January 2000 Abstract Using a near-®eld scanning optical microscope (NSOM), crystals of zinc metallo-porphyrin crystalline solids as possible size- and shape-selective oxidation cata- lysts. Zinc

Suslick, Kenneth S.

172

Impact of surface roughness of Au core in Au/Pd coreeshell nanoparticles toward formic acid oxidation e Experiment and

  Energy Storage, Conversion and Utilization Websites

Summary: oxidation e Experiment and simulation Chiajen Hsu, Chienwen Huang, Yaowu Hao, Fuqiang Liu* Department Keywords: Formic acid oxidation Coreeshell Au/Pd Pd black Simulation a b s t r a c t The Au/Pd coreeshell) have the smoothest Pd surface and demonstrate higher formic acid oxidation (FAO) activity (0.714 mA cm

Liu, Fuqiang

173

One-Pot Synthesis of Platinum Nanoparticles Embedded on Reduced Graphene Oxide for Oxygen Reduction in Methanol

  Materials Science Websites

Summary: and are also regarded as promising future power sources, especially for mobile and portable applications due. Recently, a polyol process using ethylene glycol (EG) as reducing agent5­8 has been widely used. Compared as a reducing agent for Pt precur- sor and G-O, respectively. Well-dispersed Pt nanoparticles were thereby


174

Chapter 5 Zinc deficiency

  CiteSeer

Summary: Research conducted during the past 1015 years suggests that zinc deficiency is widespread and affects the health and well-being of populations worldwide. The objective of this chapter is to quantify the regional and global magnitude, distribution and disease burden implications of zinc deficiency. We conducted a systematic literature search to identify relevant studies investigating the role of zinc in human health. This search indicated that evidence on the burden of disease related to zinc deficiency would be limited to the results of randomized controlled trials (RCTs) conducted among paediatric populations in developing countries, and would provide information on whether zinc deficiency affects the incidence of diarrhoea, pneumonia and malaria illness among children aged 04 years. There are no global estimates of zinc deficiency in paediatric or other populations; however, the International Zinc Nutrition Consultative Group (IZiNCG) has developed a method for estimating the prevalence

Laura E. Caulfield; Robert E. Black

175

Zinc Whisker Contamination A Paper on the Effect and Abatement of Zinc Whiskers in Data Processing Centers

  CiteSeer

Summary: This paper describes the phenomenon known as Zinc Whiskers, their potential and historic impact in modern computer data centers and the appropriate methods for reducing exposure to this fault vector. Experiential data is described (but not presented) and Compaqs position with respect to incidents involving Zinc Whiskers is stated. Phenomenon Zinc Whiskers were first discovered in1948 by Bell Labs in which a whisker on a zinc-plated bracket caused increased losses in quartz filters used in a telephone transmission system (1). The whiskers constitute a very serious anomaly that is causing problems ranging from inconvenience to complete havoc in todays computer rooms. Zinc Whiskers originate from zinc electroplated products commonly used in computer rooms. Zinc (Zn) is an element used to prevent rusting or oxidation of steel. Steel pieces are coated (passivated) with zinc. This coating can either be zinc Hot Dipped Galvanized (HDG) or electroplated. The HDG coating is not associated with the Zinc Whisker contaminate and can be easily recognized by the irregular triangular (spangled)

David Loman; Hp Services

176

The Effect of Platinum Surface Structure in the Oxidation of Glycerol

  University of California eScholarship Repository

Summary: oxidation reaction, and cuboctahedral- shaped Pt nanoparticlesPt nanoparticles may promote primary carbon oxidation whileoxidation of glycerol to glyceric acid increases with the size of the Pt nanoparticles.

LI, YANG
2014-01-01

177

1 Core/Shell Au/CuPt Nanoparticles and Their Dual Electrocatalysis for 2 Both Reduction and Oxidation Reactions

  Materials Science Websites

Summary: usage but also improves the 15 stability of the Au/CuPt catalyst for fuel cell reactions. The results for fuel cell reactions, we noticed 51that Au/FePt3 NPs with a 1.5 nm FePt3 shell showed much 52improved suggest that the core/shell 16 design is indeed effective for optimizing nanoparticle catalysis. The same

Wang, Zhong L.

178

Saccharomyces cerevisiae Vacuole in Zinc Storage and Intracellular Zinc Distribution ?

  CiteSeer

Summary: Previous studies of the yeast Saccharomyces cerevisiae indicated that the vacuole is a major site of zinc storage in the cell. However, these studies did not address the absolute level of zinc that was stored in the vacuole nor did they examine the abundances of stored zinc in other compartments of the cell. In this report, we describe an analysis of the cellular distribution of zinc by use of both an organellar fractionation method and an electron probe X-ray microanalysis. With these methods, we determined that zinc levels in the vacuole vary with zinc status and can rise to almost 100 mM zinc (i.e., 7 ? 10 8 atoms of vacuolar zinc per cell). Moreover, this zinc can be mobilized effectively to supply the needs of as many as eight generations of progeny cells under zinc starvation conditions. While the Zrc1 and Cot1 zinc transporters are essential for zinc uptake into the vacuole under steady-state growth conditions, additional transporters help mediate zinc uptake into the vacuole during zinc shock, when zinc-limited cells are resupplied with zinc. In addition, we found that other compartments of the cell do not provide significant stores of zinc. In particular, zinc accumulation in mitochondria is low and is homeostatically regulated independently of vacuolar zinc storage. Finally, we observed a strong correlation between zinc status and the levels of magnesium and phosphorus accumulated in cells. Our results implicate

Claudia Simm; Brett Lahner; David Salt; Ann Lefurgey; Peter Ingram; Brian Y; David J. Eide
2007-01-01

179

Degradation of transparent conductive oxides; Mechanistic insights across configurations and exposures

  Engineering Websites

Summary: Degradation of transparent conductive oxides; Mechanistic insights across configurations, Cleveland, OH, USA ABSTRACT Understanding transparent conductive oxide (TCO) degradation is critical, like indium tin oxide (ITO), aluminum- doped zinc oxide (AZO) and fluorine-doped tin oxide (FTO

Rollins, Andrew M.

180

Differential proteomics analysis of the surface heterogeneity of dextran iron oxide nanoparticles and the implications for their in vivo clearance

  MIT - DSpace

Summary: In order to understand the role of plasma proteins in the rapid liver clearance of dextran-coated superparamagnetic iron oxide (SPIO) in vivo, we analyzed the full repertoire of SPIO-binding blood proteins using novel ...

Simberg, Dmitri

181

Structure Determination of the One-Dimensional Compound Sr3ZnPtO6, Containing Zinc in a

  Materials Science Websites

Summary: Structure Determination of the One-Dimensional Compound Sr3ZnPtO6, Containing Zinc in a HighlyVember 9, 1995 We report the synthesis and structure of a new zinc-containing strontium platinum oxide, Sr3ZnPtO6, in which zinc is present in a highly unusual trigonal prismatic coordination environment

zur Loye, Hans-Conrad

182

Zinc Compounds Can Move Into the Groundwater and Into Lakes, Streams, and Rivers.

  CiteSeer

Summary: d this information because this substance may harm you. The effects of exposure to any hazardous substance depend on the dose, the duration, how you are exposed, personal traits and habits, and whether other chemicals are present. Agency for Toxic Substances and Disease Registry ToxFAQs September 1995 What is zinc? (Pronounced zngk) Zinc is one of the most common elements in the earth's crust. It's found in air, soil, and water, and is present in all foods. Pure zinc is a bluish-white shiny metal. Zinc has many commercial uses as coatings to prevent rust, in dry cell batteries, and mixed with other metals to make alloys like brass and bronze. A zinc and copper alloy is used to make pennies in the United States. Zinc combines with other elements to form zinc compounds. Common zinc compounds found at hazardous waste sites include zinc chloride, zinc oxide, zinc sulfate, and zinc sulfide. Zinc compounds are widely used in industry to make paint, rubber, dye, wood preservatives, and o

Most Of The

183

Thin films of metal oxide nanoparticles deposited on substrates find applications in various technologies such as sensors, heterogeneous

  Engineering Websites

Summary: thin film applications. A draw-back linked to these materials is the need for sintering at elevated. Traditional sintering processes involve long exposure times (hours) to elevated temperatures in convection-Fast Sintering Process for Metal Oxide Thin Films UCDinnovation Putting Knowledge to Work a b UCDinnovation


184

Controlling the Growth and Catalytic Activity of Platinum Nanoparticles Using Peptide and Polymer Ligands /

  University of California eScholarship Repository

Summary: nanoparticles must be removed from the metal surfaces by oxidationnanoparticles have been shown to increase activity for H 2 oxidation.nanoparticles increases half-wave (E 1/2 ) potentials, most likely by preventing Pt oxidation

Forbes, Lauren Marie
2013-01-01

185

Scaling properties in the adsorption of ionic polymeric surfactants on generic nanoparticles of metallic oxides by mesoscopic simulation

  CERN Preprints

Summary: We study the scaling of adsorption isotherms of polyacrylic dispersants on generic surfaces of metallic oxides $XnOm$ as a function of the number of monomeric units, using Electrostatic Dissipative Particle Dynamics simulations. The simulations show how the scaling properties in these systems emerge and how the isotherms rescale to a universal curve, reproducing reported experimental results. The critical exponent for these systems is also obtained, in perfect agreement with the scaling theory of deGennes. Some important applications are mentioned.

Mayoral, E
2014-01-01

186

Extensional rheology of shear-thickening fumed silica nanoparticles dispersed in an aqueous polyethylene

  Engineering Websites

Summary: polyethylene oxide solution Sunilkumar Khandavalli and Jonathan P. Rothsteina) Mechanical and Industrial rheology of fumed silica nanoparticles dispersed in an aqueous polyethylene oxide (PEO) solution

Rothstein, Jonathan

187

Exceptional properties of semi-dilute solutions of nanoparticle laden polymers in water

  Engineering Websites

Summary: discovered properties of semi-dilute aqueous solutions of composite polymers of polyethylene oxide and silica with exceptional properties is created by the absorption of the polyethylene oxide onto the silica nanoparticles solutions without nanoparticles. Polyethylene oxide can be stabilized by silica nanoparticles

Joseph, Daniel D.

188

IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS, VOL. 16, NO. 3, MAY/JUNE 2010 691 Dynamics of Magnetic Nanoparticle-Based Contrast

  Biology and Medicine Websites

Summary: -OCT for quantitative measurement of magnetic iron oxide nanoparticle transport and concentration in ex vivo muscle binding. These results improve our understanding of how iron oxide nanoparticles behave dynamically nanoparticles for contrast enhancement and therapy. Index Terms--Iron oxide, magnetic nanoparticles (MNPs), mag

Boppart, Stephen

189

Bioavailability of zinc in

  Geosciences Websites

Summary: , eukaryotes could not have evolved as the metal is key for many eukaryotic enzymes. In this new study that the rapid rise in zinc metalloenzymes is due to the increasing need for regulatory and signaling enzymes

Machel, Hans

190

Nanowire-based All Oxide Solar Cells

  University of California eScholarship Repository

Summary: which are metallic copper nanoparticles. The solution wasthe oxidation of the copper nanoparticles into Cu 2 O. Thenanoparticles (NPs) were prepared after the method of Yin et al 20 . A solution of copper (

Yang, Peidong
2009-01-01

191

Received: 17 November 2009, Revised: 9 April 2010, Accepted: 15 April 2010, Published online in Wiley Online Library: 2010 Cytotoxicity of iron oxide nanoparticles made

  Materials Science Websites

Summary: . Kushleikac , Michael E. Rosenfeldc and Kannan M. Krishnana * Magnetic nanoparticles are promising molecular to tailor biodistribution. In this work we describe the synthesis of magnetic nanoparticles using organic and shape results in unique magnetic properties that can be useful for biomedical applications with MR

Krishnan, Kannan M.

192

Epoxy, ZnO, and PTFE nanocomposite: friction and wear optimization N.L. McCook, B. Boesl, D.L. Burris and W.G. Sawyer*

  Engineering Websites

Summary: and increase the wear resistance of epoxy, nanoparticles of zinc oxide and polytetrafluoro- ethylene (PTFE. The sample with the optimum wear rate consisted of 1 volume percent of zinc oxide nanoparticles and 14 of zinc oxide nanoparticles and 14.5 volume percent of PTFE nanoparticles and had a friction coefficient

Sawyer, Wallace

193

Imaging mobile zinc in biology

  MIT - DSpace

Summary: Trafficking and regulation of mobile zinc pools influence cellular functions and pathological conditions in multiple organs, including brain, pancreas, and prostate. The quest for a dynamic description of zinc distribution ...

Tomat, Elisa

194

Zinc in Human Health: Effect of Zinc on Immune Cells

  CiteSeer

Summary: Although the essentiality of zinc for plants and animals has been known for many decades, the essentiality of zinc for humans was recognized only 40 years ago in the Middle East. The zinc-deficient patients had severe immune dysfunctions, inasmuch as they died of intercurrent infections by the time they were 25 years of age. In our studies in an experimental human model of zinc deficiency, we documented decreased serum testosterone level, oligospermia, severe immune dysfunctions mainly affecting T helper cells, hyperammonemia, neurosensory disorders, and decreased lean body mass. It appears that zinc deficiency is prevalent in the developing world and as many as two billion subjects may be growth retarded due to zinc deficiency. Besides growth retardation and immune dysfunctions, cognitive impairment due to zinc deficiency also has been reported recently. Our studies in the cell culture models showed that the activation of many zinc-dependent enzymes and transcription factors were adversely affected due to zinc deficiency. In HUT-78 (T helper 0 [Th 0] cell line), we showed that a decrease in gene expression of interleukin-2 (IL-2) and IL-2 receptor ? (IL-2R?) were due to decreased activation of nuclear factor-?B (NF-?B) in zinc deficient cells. Decreased NF-?B activation in HUT-78 due to zinc deficiency was due to decreased binding of NF-?B to DNA, decreased level of NF-?B p105 (the precursor of NF-?B p50) mRNA, decreased ?B inhibitory protein (I?B) phosphorylation, and decreased I??. These effects of zinc were cell specific. Zinc also is an antioxidant and has anti-inflammatory actions. The therapeutic roles of zinc in acute infantile diarrhea, acrodermatitis enteropathica, prevention of blindness in patients with age-related macular degeneration, and

Ananda S Prasad

195

Localized Pd Overgrowth on Cubic Pt Nanocrystals for Enhanced Electrocatalytic Oxidation of Formic Acid

  University of California eScholarship Repository

Summary: binary Pt/Pd nanoparticles. Also, oxidation occurs at a muchOxidation of formic acid on Pd cubes and Pd nanoparticlesoxidation potential expected from the single crystal study. Preparation of metal nanoparticles

Habas, S.E.
2009-01-01

196

Localized Pd Overgrowth on Cubic Pt Nanocrystals for Enhanced Electrocatalytic Oxidation of Formic Acid

  University of California eScholarship Repository

Summary: binary Pt/Pd nanoparticles. Also, oxidation occurs at a muchOxidation of formic acid on Pd cubes and Pd nanoparticlesoxidation potential expected from the single crystal study. Preparation of metal nanoparticles

Lee, Hyunjoo
2008-01-01

197

Colloidal Plasmonic Titanium Nitride Nanoparticles: Properties and Applications

  CERN Preprints

Summary: Optical properties of colloidal plasmonic titanium nitride nanoparticles are examined with an eye on their photothermal via transmission electron microscopy and optical transmittance measurements. Single crystal titanium nitride cubic nanoparticles with an average size of 50 nm exhibit plasmon resonance in the biological transparency window. With dimensions optimized for efficient cellular uptake, the nanoparticles demonstrate a high photothermal conversion efficiency. A self-passivating native oxide at the surface of the nanoparticles provides an additional degree of freedom for surface functionalization.

Guler, Urcan; Kildishev, Alexander V; Boltasseva, Alexandra; Shalaev, Vladimir M
2014-01-01

198

Zinc--2004 84. Referencesthatincludeasectionmark()arefoundintheinternet

  Environmental Sciences and Ecology Websites

Summary: Zinc--2004 84. Referencesthatincludeasectionmark(§)arefoundintheinternet Referencescitedsection. Zinc ByJohnD.Jorgenson Domestic survey data and tables were prepared by Samir Hakim, statistical§ ). Aprocesstorecoverzincfromelectricarcfurnacedustwas developedandtestedbytheBritishfirmZinc


199

INTERACTIONS BETWEEN ZINC AND THYMULIN

  CiteSeer

Summary: Thymulin (formerly called "Facteur Thymique Sdrique or FTS) is a metallopeptidic hormone selectively produced by thymic epithelial cells (TEC) and known to induce intra and extra-thymic T cell differentiation. It was initially isolated.from porcine serum and shown to be present in calf thymus extract. Its amino-acid sequence was determined (zinc, in an equimolecular ratio. The metallopeptide thus formed bears a specific tridimensional conformation detected by nuclear magnetic resonance studies, and that yielded a new monoclonal antibody-defined epitope. The presence of zinc and metallothionein has been demonstrated within TEC which produce the peptide, suggesting that the molecule is secreted in its active zinc-containing form. The zinc/thymulin relationship, was further studied using various models of mild zinc deficiency in experimental animals and in humans. Serum thymulin activity was decreased as a result of zinc deficiency, and was corrected by in vivo and in vitro zinc supplementation, suggesting that this parameter could be a sensitive indicator of zinc deficiency. When considered together with the parallel variations seen in T-cell subpopulations and lymphokine production, these observations could provide a possible explanation of the role of zinc on T cell functions. 2.

Mireille Dardenne; Jean-marie Pleau

200

P-64: A Comparative Study of Metal Oxide Coated Indium-tin Oxide Anodes

  CiteSeer

Summary: Indium-tin oxide anodes capped with certain oxides of metals enhance while other oxides degrade the hole-injection and quantum efficiencies of organic light-emitting diodes (OLEDs). The oxides of tin, zinc, praseodymium, yttrium, gallium, terbium and titanium have been investigated. The power efficiency of an OLED with a 1nm thick praseodymium oxide cap is improved by 2.5 times over that of a conventional OLED without an oxide capped anode.

For Organic Light-Emitting; Chengfeng Qiu; Haiying Chen; Zhilang Xie; Man Wong; Hoi Sing Kwok
2002-01-01

201

In-situ Studies of the Reactions of Bifunctional and Heterocyclic Molecules over Noble Metal Single Crystal and Nanoparticle Catalysts Studied with Kinetics and Sum-Frequency Generation Vibrational Spectroscopy

  University of California eScholarship Repository

Summary: nanoparticles get smaller, the proportion of surface atoms in higher oxidationoxidation state following the uv-ozone treatment is very likely higher on the smaller nanoparticles,nanoparticles. XPS studies are underway to determine the exact oxidation

Kliewer, Christopher J.
2010-01-01

202

Synthesis of Different Zinc and Zinc Included Nanostructures by High Power Copper Vapor Laser Ablation in Water- Surfactants Solutions

  CERN Preprints

Summary: The data of experimental studies of optical characteristics of colloidal solutions, composition and morphology of its dispersed phase, resulting from laser ablation of zinc in aqueous solutions of anionic surfactants --- sodium dodecyl sulfate (SDS), dioctyl sodium sulfosuccinate (AOT) are presented. It is shown that by studying the optical absorption spectra of the colloid, X-ray spectra and AFM-images of extracted from colloid solid phase, it is possible to trace the dynamics of ZnO nanostructures formation from zinc nanoclasters size of several nanometers to ZnO fractal aggregates (FA) size up to hundreds of nanometers. Determinants of this process are the average power and an ablation exposure, the frequency of the laser pulses, the colloid aging time, the type and concentration of surfactant in solution. In the selection of appropriate regimes, along with zinc oxide obtained other nanoproducts --- hydrozincit and organo-inorganic layered composite \\ce{[(\\beta) - Zn(OH)2 + SDS]}.

Karpukhin, Vyacheslav T; Borodina, Tatyana; Valyano, E G; Gololobova, O A
2011-01-01

203

ORIGINAL PAPER Instability of Supported Platinum Nanoparticles

  Engineering Websites

Summary: carbon and coarsening of Pt nanoparticles on carbon. Keywords Fuel cell Á Catalyst Á Platinum Á. Therefore, hydrogen is typically used as the fuel and oxygen in air is employed as the oxidant. We here use-temperature fuel cells. The schematic of a PEM fuel cell is shown in Fig. 1. Protons produced from oxidation

Ferreira, Paulo J.

204

Molecular Structure- Zinc Phosphide

  CiteSeer

Summary: NPIC Technical Fact Sheets provide information that is complex and intended for individuals with a scientific background and/or familiarity with toxicology and risk assessment. This document is intended to promote informed decision-making. Please refer to the General Fact Sheet for less technical information. Chemical Class and Type: Zinc phosphide is an inorganic compound that is used in pesticide products as a rodenticide. The International Union of Pure and Applied Chemistry (IUPAC) chemical name is trizinc diphosphide, 1 and the Chemical Abstracts Service (CAS) registry number is 1314-84-7. 2

unknown authors

205

Chem. Mater. 1994, 6, 2279-2287 2279 Chemical Vapor Deposition of Zinc from Diallyl Zinc

  Materials Science Websites

Summary: Chem. Mater. 1994, 6, 2279-2287 2279 Chemical Vapor Deposition of Zinc from Diallyl Zinc Precursors 24, 1994. Revised Manuscript Received August 23, 1994@ The organometallic compounds bis(ally1)zinc and bis(2-methylally1)zinc have been shown to serve as MOCVD precursors for the deposition of zinc

Girolami, Gregory S.

206

Analysis of Absorption Spectra of Zinc Porphyrin, Zinc meso-Tetraphenylporphyrin, and Halogenated Derivatives

  Chemistry Websites

Summary: Analysis of Absorption Spectra of Zinc Porphyrin, Zinc meso-Tetraphenylporphyrin, and HalogenatedVed: January 10, 2002; In Final Form: August 13, 2002 The absorption spectra of zinc porphyrin, zinc meso- ties.2 Zinc octahalogenated meso-tetraphenylporphyrins (ZnT- PPX8) have been synthesized3

Tretiak, Sergei

207

Original article Improvement of zinc intestinal absorption

  Computer Technologies and Information Sciences Websites

Summary: Original article Improvement of zinc intestinal absorption and reduction of zinc/iron interaction 1998) Abstract - Binding zinc (Zn) to soluble caseinophosphopeptides (CN), produced by the hydrolysis/Elsevier, Paris zinc / iron / digestive absorption / caseinophosphopeptide / rat Résumé - Augmentation de l

Boyer, Edmond

208

International Lead and Zinc Study Group

  Physics Websites

Summary: International Lead and Zinc Study Group 38 Rua Almirante Barroso 5th Floor Lisbon 1000-013 Portugal AND ZINC STATISTICS Monthly bulletin of the International Lead and Zinc Study Group Vol 46 No 2 FEBRUARY 2006 Copyright - International Lead and Zinc Study Group The contents of this bulletin may

Laughlin, Robert B.

209

Zinc Deficiency in Sickle Cell Disease

  CiteSeer

Summary: Clinical similarities between patients with sickle cell anemia and zinc-deficient subjects suggested a secon-dary zinc deficiency in sickle cell anemia. Zinc was as-sayed in various biological fluids and tissues by atomic absorption spectrophotometry. Zinc in the plasma, erythrocytes, and hair was

A S. Prasad; Eric B. Schoomaker; Jesus Ortega; George J. Brewer; Donald Oberleas; Fred J. Oelshlegel
1974-01-01

210

OLEDs, OXIDE TFTs, AND DISPLAY WEEK PREVIEW ISSUE Official Monthly Publication of the Society for Information Display www.informationdisplay.org

  Engineering Websites

Summary: TFTs for AMOLED TVs. n By Jin-Seong Park 20 Frontline Technology: Zinc-Oxynitride TFTs: Toward a New-oxide-semiconductor IGZO for display backplanes has triggered even more activity, and zinc oxynitride is proposed

Heikenfeld, Jason

211

(Data in thousand metric tons of zinc content unless otherwise noted) Domestic Production and Use: The value of zinc mined in 2006, based on contained zinc recoverable from

  Environmental Sciences and Ecology Websites

Summary: 186 ZINC (Data in thousand metric tons of zinc content unless otherwise noted) Domestic Production and Use: The value of zinc mined in 2006, based on contained zinc recoverable from concentrate, was about smelters refined zinc metal of commercial grade in 2006. Of zinc metal consumed, about 75% was used


212

Zinc and Health: Current Status and Future Directions Zinc Transport in the Brain: Routes of Zinc Influx and Efflux in Neurons1,2

  Biology and Medicine Websites

Summary: Zinc and Health: Current Status and Future Directions Zinc Transport in the Brain: Routes of Zinc of the routes of entry and exit for zinc in different tissues and cell types have shown that zinc can use and that mediate extracellular zinc toxicity and (3) a plasma membrane transporter potentially present in all


213

(Data in thousand metric tons of zinc content, unless otherwise noted) Domestic Production and Use: The value of zinc mined in 1999, based on contained zinc recoverable from

  Environmental Sciences and Ecology Websites

Summary: 190 ZINC (Data in thousand metric tons of zinc content, unless otherwise noted) Domestic Production and Use: The value of zinc mined in 1999, based on contained zinc recoverable from concentrate, was about%. Three primary and eight secondary smelters refined zinc metal of commercial grade in 1999. Of zinc metal


214

(Data in thousand metric tons of zinc content, unless otherwise noted) Domestic Production and Use: The value of zinc mined in 2003, based on contained zinc recoverable from

  Environmental Sciences and Ecology Websites

Summary: 188 ZINC (Data in thousand metric tons of zinc content, unless otherwise noted) Domestic Production and Use: The value of zinc mined in 2003, based on contained zinc recoverable from concentrate, was about refined zinc metal of commercial grade in 2003. Of zinc metal consumed, about 75% was used in Illinois


215

(Data in thousand metric tons of zinc content unless otherwise noted) Domestic Production and Use: The value of zinc mined in 2005, based on contained zinc recoverable from

  Environmental Sciences and Ecology Websites

Summary: 190 ZINC (Data in thousand metric tons of zinc content unless otherwise noted) Domestic Production and Use: The value of zinc mined in 2005, based on contained zinc recoverable from concentrate, was about refined zinc metal of commercial grade in 2005. Of zinc metal consumed, about 75% was used in Illinois


216

(Data in thousand metric tons of zinc content, unless otherwise noted) Domestic Production and Use: The value of zinc mined in 2000, based on contained zinc recoverable from

  Environmental Sciences and Ecology Websites

Summary: 186 ZINC (Data in thousand metric tons of zinc content, unless otherwise noted) Domestic Production and Use: The value of zinc mined in 2000, based on contained zinc recoverable from concentrate, was about zinc metal of commercial grade in 2000. Of zinc metal consumed, about 75% was used in Illinois, Indiana


217

Journal of Photochemistry and Photobiology A: Chemistry 185 (2007) 301311 Photodriven reduction and oxidation reactions on colloidal semiconductor

  Environmental Management and Restoration Websites

Summary: and oxidation reactions on colloidal semiconductor particles: Implications for prebiotic synthesis Xiang V. 1). Zinc sulfide, a semiconductor which occurs in nature as the minerals sphalerite and wurtzite


218

Selectively Assembled Co Nanoparticle Stripes Prepared by Covalent Linkage and Microcontact Printing

  Computer Technologies and Information Sciences Websites

Summary: and some metal oxide nanoparticles such as those of Au or Ag because of limitations in the chemicalSelectively Assembled Co Nanoparticle Stripes Prepared by Covalent Linkage and Microcontact introduce a novel strategy to fabricate a bifunctional monolayer assembly of Co nanoparticles on a Si- (111

Kim, Sehun

219

Catalytically Active Gold: From Nanoparticles to Ultrathin Films

  Chemistry Websites

Summary: Catalytically Active Gold: From Nanoparticles to Ultrathin Films MINGSHU CHEN AND D. WAYNE GOODMAN activity, comparable to the activity observed for Au nanoparticles. This discovery is a key that nanosized gold particles, highly dispersed on metal oxide supports, are active catalysts for a variety

Goodman, Wayne

220

Printing nanoparticle building blocks from the gas phase using nanoxerography

  Engineering Websites

Summary: . A transparent particle assembly module was designed to direct and monitor the assembly of metallic nanoparticles markers.3 Evaporated gold,4 indium,5 and ion sputtered aluminum6 nanoparticles are used for single and transfer of 50 nm to 20 m sized particles including iron oxide, graphitized carbon, iron beads, and Xerox

Jacobs, Heiko O.

221

Catalysis of Elemental Sulfur Nanoparticles on Chromium(VI)

  Engineering Websites

Summary: Catalysis of Elemental Sulfur Nanoparticles on Chromium(VI) Reduction by Sulfide under Anaerobic oxidation was elemental sulfur. Under the anaerobic condition, the reaction was pseudo first order initially acceleration was due to catalysis by elemental sulfur nanoparticles; dissolved species such as monomeric

Deng, Baolin

222

A Low Temperature Fully Lithographic Process For MetalOxide Field-Effect Transistors

  MIT - DSpace

Summary: We report a low temperature ( ~ 100 °C) lithographic method for fabricating hybrid metal oxide/organic field-effect transistors (FETs) that combine a zinc-indium-oxide (ZIO) semiconductor channel and organic, parylene, ...

Sodini, Charles G.

223

Review Endogenous Zinc in Neurological Diseases

  CiteSeer

Summary: The use of zinc in medicinal skin cream was mentioned in Egyptian papyri from 2000 BC (for example, the Smith Papyrus), and zinc has apparently been used fairly steadily throughout Roman and modern times (for example, as the American lotion named for its zinc ore, Calamine). It is, therefore, somewhat ironic that zinc is a relatively late addition to the pantheon of signal ions in biology and medicine. However, the number of biological functions, health implications and pharmacological targets that are emerging for zinc indicate that it might turn out to be the calcium of the twenty-first century. Here neurobiological roles of endogenous zinc is summarized.

Jae-yong Koh, Ph.D.; J Clin Neurol

224

Influence of the zinc concentration of zinc substituted hydroxyapatite on cytokines production by human

  Physics Websites

Summary: 1 Influence of the zinc concentration of zinc substituted hydroxyapatite on cytokines production osteoclasts activation. The present work studies the effect of zinc-substituted hydroxyapatite particles with various concentrations of zinc on cytokines production (TNF-, IL-1, IL-6, IL-10, and IL-8) by human

Paris-Sud XI, Université de

225

Cell Calcium 40 (2006) 393402 Determining zinc with commonly used calcium and zinc fluorescent

  Biology and Medicine Websites

Summary: Cell Calcium 40 (2006) 393­402 Determining zinc with commonly used calcium and zinc fluorescent rights reserved. Keywords: Zinc; Calcium; Fluorescence; Fluorophore; Calcium Green-1; Fura-2; Fluo-3 Zn2+ and histo- chemically reactive free Zn2+ (chelatable Zn2+). Bound zinc, which makes up

Li, Yang V.

226

Trichomes of Tobacco Excrete Zinc as Zinc-Substituted Calcium Carbonate and Other

  Physics Websites

Summary: to study biomineralization and metal homeostasis processes in plants. Smoking of tobacco (Nicotiana tabacumTrichomes of Tobacco Excrete Zinc as Zinc-Substituted Calcium Carbonate and Other Zinc.F., M.A.M.) Tobacco (Nicotiana tabacum L. cv Xanthi) plants were exposed to toxic levels of zinc (Zn


227

Dietary zinc supplementation of 3xTg-AD mice increases BDNF levels and prevents cognitive deficits as well as mitochondrial dysfunction

  University of California eScholarship Repository

Summary: amyloid, but not tau, pathology in an Alzheimer transgenicAD mouse, A,B, tau, zinc, BDNF Alzheimer's disease (AD)and tau synergistically impair the oxidative phosphorylation system in triple transgenic Alzheimer&#


2010-01-01

228

Stochastic MiniZinc Andrea Rendl1

  Computer Technologies and Information Sciences Websites

Summary: Stochastic MiniZinc Andrea Rendl1 , Guido Tack1 , and Peter Stuckey2 1 National ICT Australia-level modelling languages have been developed, such as ESRA [2], Essence [4], Essence' [7], OPL [23], ZINC [11

Stuckey, Peter J.

229

Rational Design of Zinc Phosphide Heterojunction Photovoltaics

  Computer Technologies and Information Sciences Websites

Summary: Rational Design of Zinc Phosphide Heterojunction Photovoltaics Thesis by Jeffrey Paul Bosco would meet me with the same energy and enthusiasm regarding the topic of zinc phosphide photovoltaics. Dr. Greg Kimball initially started the zinc phosphide solar project and the knowledge he contributed

Winfree, Erik

230

Adding Search to Zinc Reza Rafeh1

  Computer Technologies and Information Sciences Websites

Summary: Adding Search to Zinc Reza Rafeh1 , Kim Marriott1 , Maria Garcia de la Banda1 , Nicholas Nethercote to the declar- ative modelling language Zinc that allows users to define model-specific search. This is achieved by providing a number of generic search pat- terns that take Zinc user-defined functions as parameters. We show

Garcia de la Banda, Maria

231

(Data in thousand metric tons of zinc content, unless otherwise noted) Domestic Production and Use: The value of zinc mined in 2001, based on contained zinc recoverable from

  Environmental Sciences and Ecology Websites

Summary: 188 ZINC (Data in thousand metric tons of zinc content, unless otherwise noted) Domestic Production and Use: The value of zinc mined in 2001, based on contained zinc recoverable from concentrate, was about-fourths of production. Three primary and 12 large- and medium-sized secondary smelters refined zinc metal of commercial


232

(Data in thousand metric tons of zinc content, unless otherwise noted) Domestic Production and Use: The value of zinc mined in 1998, based on contained zinc recoverable from

  Environmental Sciences and Ecology Websites

Summary: 192 ZINC (Data in thousand metric tons of zinc content, unless otherwise noted) Domestic Production and Use: The value of zinc mined in 1998, based on contained zinc recoverable from concentrate, was about 62%. Three primary and eight secondary smelters refined zinc metal of commercial grade in 1998


233

(Data in thousand metric tons of zinc content unless otherwise noted) Domestic Production and Use: The value of zinc mined in 2004, based on contained zinc recoverable from

  Environmental Sciences and Ecology Websites

Summary: 188 ZINC (Data in thousand metric tons of zinc content unless otherwise noted) Domestic Production and Use: The value of zinc mined in 2004, based on contained zinc recoverable from concentrate, was about% of total U.S. production. Two primary and 12 large- and medium-sized secondary smelters refined zinc metal


234

(Data in thousand metric tons of zinc content, unless otherwise noted) Domestic Production and Use: The value of zinc mined in 2002, based on contained zinc recoverable from

  Environmental Sciences and Ecology Websites

Summary: 190 ZINC (Data in thousand metric tons of zinc content, unless otherwise noted) Domestic Production and Use: The value of zinc mined in 2002, based on contained zinc recoverable from concentrate, was about% of production. Two primary and 13 large- and medium-sized secondary smelters refined zinc metal of commercial


235

(Data in thousand metric tons of zinc content, unless otherwise noted) Domestic Production and Use: The value of zinc mined in 1997, based on contained zinc recoverable from

  Environmental Sciences and Ecology Websites

Summary: 190 ZINC (Data in thousand metric tons of zinc content, unless otherwise noted) Domestic Production and Use: The value of zinc mined in 1997, based on contained zinc recoverable from concentrate, was about than one-half. Three primary and five secondary smelters refined zinc metal of commercial grade in 1997


236

Open Archive Toulouse Archive Ouverte (OATAO) OATAO is an open access repository that collects the work of Toulouse researchers and

  Computer Technologies and Information Sciences Websites

Summary: Made From Zinc Oxide Nanoparticles Through Low Temperature Spark Plasma Sintering. Advanced Functional of Varistors Made From Zinc Oxide Nanoparticles Through Low Temperature Spark Plasma Sintering By Lena Saint Renaud, and Bruno Chaudret* 1. Introduction Zinc oxide is characterized by remarkable optical, thermal

Mailhes, Corinne

237

Functionalized nanoparticles Surface Functionalization of Single Superparamagnetic

  Materials Science Websites

Summary: , yielding particle stability for at least 20 months. Particle size, stability, and magnetic properties to the synthesis of iron oxide nanoparticles because the synthesis determines particle composition, size different diseases in humans and animals. One important advantage of MRI over SPECT, PET, and CT is its non


238

634 SERUM ZINC LEVELS IN HEPATOCELLULAR CARCINOMA

  CiteSeer

Summary: SUBNORMAL serum zinc levels have been observed in a number of neoplastic diseases including leukaemia (Vikbladh, 1951), Hodgkin's disease (Auerbach, 1965), bronchial carcinoma (Davies, Musa and Dormandy, 1968) and a variety of other carcinomas and sarcomas (Vikbladh, 1951; Wolff, 1956). By contrast, elevated serum zinc values appear to be an unusual feature in human malignancy, although Addink and Frank (1959) have stated that tumours arising in zinc-rich tissues are associated with high blood zinc levels. Since normal human liver tissue contains relatively large quantities of zinc (Olson, Heggen, Edwards and Gorham, 1954), it is of interest that elevated serum zinc values have been reported in 12 patients suffering from primary liver cancer (Karlinsky and Roomere, 1967). As this tumour is not uncommon in the Southern African Bantu (Berman, 1951; Higginson and Oettle, 1957; Becker and Chatgidakis, 1961), zinc determinations have been performed on the sera of 31 Bantu patients with hepatocellular carcinoma in an attempt to confirm this observation. PATIENTS

J. A. Dunn; M. C. Kew; J. D. Taylor; R. C. Mallet
1969-01-01

239

HOW DO STREAM ORGANISMS RESPOND TO, AND INFLUENCE, THE CONCENTRATION OF TITANIUM DIOXIDE NANOPARTICLES? A MESOCOSM STUDY

  Biology and Medicine Websites

Summary: . Chem. 2012;31:2414­2422. # 2012 SETAC Keywords--Nanoparticle TiO2 Metal oxide Stream Physa acuta NANOPARTICLES? A MESOCOSM STUDY WITH ALGAE AND HERBIVORES KONRAD J. KULACKI,*yz BRADLEY J. CARDINALE,z ARTURO A of nanoparticles could have unintended impacts when released into natural ecosystems. In the present study

Cardinale, Bradley J.

240

Zinc and Health: Current Status and Future Directions Zinc Homeostasis in Humans 1

  CiteSeer

Summary: ABSTRACT Maintaining a constant state of cellular zinc nutrition, or homeostasis, is essential for normal function. In animals and humans, adjustments in zinc absorption and endogenous intestinal excretion are the primary means of maintaining zinc homeostasis. The adjustments in gastrointestinal zinc absorption and endogenous excretion are synergistic. Shifts in endogenous excretion appear to occur quickly with changes in intake just above or below optimal intake. The absorption of zinc responds more slowly, but it has the capacity to cope with large fluctuations in intake. With extremely low zinc intakes or with prolonged marginal intakes, secondary homeostatic adjustments may augment the gastrointestinal changes. These secondary adjustments include changes in urinary zinc excretion, a shift in plasma zinc turnover rates and, possibly, an avid retention of zinc released from selected tissues, such as bone, in other tissues to maintain function. J. Nutr. 130: 1360S1366S, 2000. KEY WORDS: ? zinc ? zinc homeostasis ? zinc absorption ? zinc kinetics ? zinc excretion The ability to maintain a constant internal state with varying external conditions is essential for survival. This is called homeostasis if the nutrient flow within an organism is in a state of equilibrium, and it is called homeorhesis if there is continual retention of the nutrient as occurs during growth,

Janet C. King; David M. Shames; Leslie R. Woodhouse

241

ZINC--1999 85.1 By Jozef Plachy

  Environmental Sciences and Ecology Websites

Summary: ZINC--1999 85.1 ZINC By Jozef Plachy Domestic survey data and tables were prepared by Brandon P, international data coordinator. In 1999, domestic zinc mine production, expressed in zinc content of ore in Alaska (table 1). On the basis of recoverable content and annual average U.S. price, the value of zinc


242

ZINC--2000 86.1 By Jozef Plachy

  Environmental Sciences and Ecology Websites

Summary: ZINC--2000 86.1 ZINC By Jozef Plachy Domestic survey data and tables were prepared by Aaron J, international data coordinator. In 2000, domestic zinc mine production, expressed in zinc content of ore). On the basis of recoverable content and annual average U.S. price, the value of zinc mine production


243

ZINC--2001 85.1 By Jozef Plachy

  Environmental Sciences and Ecology Websites

Summary: ZINC--2001 85.1 ZINC By Jozef Plachy Domestic survey data and tables were prepared by Aaron J, international data coordinator. In 2001, domestic zinc mine production, expressed in zinc content of ore and annual average U.S. price, the value of zinc mine production was estimated to be about $774 million


244

Influence of the Polyvinyl Pyrrolidone Concentration on Particle Size and Dispersion of ZnS Nanoparticles Synthesized by Microwave Irradiation

  CiteSeer

Summary: Abstract: Zinc sulfide semiconductor nanoparticles were synthesized in an aqueous solution of polyvinyl pyrrolidone via a simple microwave irradiation method. The effect of the polymer concentration and the type of sulfur source on the particle size and dispersion of the final ZnS nanoparticle product was carefully examined. Microwave heating generally occurs by two main mechanisms: dipolar polarization of water and ionic conduction of precursors. The introduction of the polymer affects the heating rate by restriction of the rotational motion of dipole molecules and immobilization of ions. Consequently, our results show that the presence of the polymer strongly affects the nucleation and growth rates of the ZnS nanoparticles and therefore determines the average particle size and the dispersion. Moreover, we found that PVP adsorbed on the surface of the ZnS nanoparticles by interaction of the CN and C=O with the nanoparticles surface,

Nayereh Soltani; Elias Saion; Maryam Erfani; Khadijeh Rezaee; Ghazaleh Bahmanrokh; Gregor P. C. Drummen; Afarin Bahrami; Mohd Zobir Hussein
2012-01-01

245

A photonic crystal cavity-optical fiber tip nanoparticle sensor for biomedical applications

  CERN Preprints

Summary: We present a sensor capable of detecting solution-based nanoparticles using an optical fiber tip functionalized with a photonic crystal cavity. When sensor tips are retracted from a nanoparticle solution after being submerged, we find that a combination of convective fluid forces and optically-induced trapping cause an aggregation of nanoparticles to form directly on cavity surfaces. A simple readout of quantum dot photoluminescence coupled to the optical fiber shows that nanoparticle presence and concentration can be detected through modified cavity properties. Our sensor can detect both gold and iron oxide nanoparticles and can be utilized for molecular sensing applications in biomedicine.

Shambat, Gary; Khurana, Aman; Provine, J; Sarmiento, Tomas; Cheng, Kai; Cheng, Zhen; Harris, James; Daldrup-Link, Heike; Gambhir, Sanjiv Sam; Vuckovic, Jelena
2012-01-01

246

How might I be exposed to zinc?

  CiteSeer

Summary: l Protection Agency. This fact sheet answers the most frequently asked health questions (FAQs) about zinc. For more information, call the ATSDR Information Center at 1-888-422-8737. This fact sheet is one in a series of summaries about hazardous substances and their health effects. It's important you understand this information because this substance may harm you. The effects of exposure to any hazardous substance depend on the dose, the duration, how you are exposed, personal traits and habits, and whether other chemicals are present. Agency for Toxic Substances and Disease Registry ToxFAQs September 1995 TSDR ZINC CAS # 7440-66-6 What is zinc? (Pronounced zngk) Zinc is one of the most common elements in the earth's crust. It's found in air, soil, and water, and is present in all foods. Pure zinc is a bluish-white shiny metal. Zinc has many commercial uses as coatings to prevent rust, in dry cell ba

Ingesting Small Amounts

247

The marine biogeochemistry of zinc isotopes

  MIT - DSpace

Summary: Zinc (Zn) stable isotopes can record information about important oceanographic processes. This thesis presents data on Zn isotopes in anthropogenic materials, hydrothermal fluids and minerals, cultured marine phytoplankton, ...

John, Seth G
2007-01-01

248

Nucleophilicity of zinc-bound thiolates

  CiteSeer

Summary: Abstract: The nucleophilicity of biomimetic zinc-thiolate complexes against methyl iodide has been studied. The activation barrier has been computed with the B3LYP functional. The reactivity depends on the global charge, the nature of the ligand set and the presence of hydrogen bonds. This shows that the understanding of zinc site nucleophilicity can not be achieved by the knowledge of the atom donor set for zinc only, as currently done in the literature. Moreover, we show that sulfur proton affinity and activation barrier are directly proportional, thus providing a good nucleophilicity index for zinc-bound thiolate.

Delphine Picot; Gilles Ohanessian; Gilles Frison
2010-01-01

249

Development of force field and calculation of electronic, optical and structural properties of nanoparticles and polymer nanocomposites using

  Materials Science Websites

Summary: of nanoparticles and polymer nanocomposites using DFT studies Zinc sulfide (ZnS) has gained attention in the wide, it is crucial to understand the structure, stability and dynamics of the ZnS. We developed a transferable force field for ZnS that accounts for structure, energy, mechanical and elastic properties. As a first step

Singh, Jayant K.

250

Phosphorescent sensor for biological mobile zinc

  MIT - DSpace

Summary: A new phosphorescent zinc sensor (ZIrF) was constructed, based on an Ir(III) complex bearing two 2-(2,4-difluorophenyl)pyridine (dfppy) cyclometalating ligands and a neutral 1,10-phenanthroline (phen) ligand. A zinc-specific ...

You, Youngmin

251

On the Origin of the Unique Properties of Supported Au Nanoparticles

  Chemistry Websites

Summary: On the Origin of the Unique Properties of Supported Au Nanoparticles Mingshu Chen, Yun Cai, Zhen: The unique catalytic activity of supported Au nanoparticles has been ascribed to various effects including thickness/shape, the metal oxidation state, and support effects. Previously, we reported the synthesis

Goodman, Wayne

252

High-efficiency visible photoluminescence from amorphous silicon nanoparticles embedded in silicon nitride

  Materials Science Websites

Summary: High-efficiency visible photoluminescence from amorphous silicon nanoparticles embedded in silicon 29 August 2003 Confinement of silicon nanoparticles in silicon nitride instead of an oxide matrix. We report in this letter the production of high-density up to 4.0 1012 /cm2 from micrographs silicon

Zexian, Cao

253

Controlled release nanoparticle-embedded coatings reduce the tissue reaction to neuroprostheses

  Computer Technologies and Information Sciences Websites

Summary: in the brain. The coatings consist of poly(propylene sulfide) drug-eluting nanoparticles embedded in a poly(ethylene oxide) matrix. The nanoparticles are loaded with dexametha- sone, an anti-inflammatory drug known are not affected by the coating process and the drug remains bioactive after it is released. The coating

Floreano, Dario

254

Comparison study of catalyst nanoparticle formation and carbon nanotube growth: Support effect

  Engineering Websites

Summary: Comparison study of catalyst nanoparticle formation and carbon nanotube growth: Support effect A comparison study has been conducted on the formation of catalyst nanoparticles on a high surface tension metal and low surface tension oxide for carbon nanotube CNT growth via catalytic chemical vapor

Shi, Li

255

Multiscale Modeling of TiO2 Nanoparticle Production in Flame Reactors: Effect of Chemical Mechanism

  Engineering Websites

Summary: and Engineering Mechanics, The UniVersity of Texas, Austin, Texas 78712 For titanium dioxide (TiO2) nanoparticles in the flame with detailed titanium oxidation chemistry, compared to one-step chemistry. Finally, a large, catalysis, energy, and semiconductors. Titanium dioxide (TiO2) nanoparticles are traditionally used

Raman, Venkat

256

Zinc abundances of planetary nebulae

  CERN Preprints

Summary: Zinc is a useful surrogate element for measuring Fe/H as, unlike iron, it is not depleted in the gas phase media. Zn/H and O/Zn ratios have been derived using the [Zn IV] emission line at 3.625um for a sample of nine Galactic planetary nebulae, seven of which are based upon new observations using the VLT. Based on photoionization models, O/O++ is the most reliable ionisation correction factor for zinc that can readily be determined from optical emission lines, with an estimated accuracy of 10% or better for all targets in our sample. The majority of the sample is found to be sub-solar in [Zn/H]. [O/Zn] in half of the sample is found to be consistent with Solar within uncertainties, whereas the remaining half are enhanced in [O/Zn]. [Zn/H] and [O/Zn] as functions of Galactocentric distance have been investigated and there is little evidence to support a trend in either case.

Smith, Christina L; Dinerstein, Harriet L
2014-01-01

257

Zinc-Regulated DNA Binding of the Yeast Zap1 Zinc- Responsive Activator

  CiteSeer

Summary: The Zap1 transcription factor of Saccharomyces cerevisiae plays a central role in zinc homeostasis by controlling the expression of genes involved in zinc metabolism. Zap1 is active in zinc-limited cells and repressed in replete cells. At the transcriptional level, Zap1 controls its own expression via positive autoregulation. In addition, Zap1s two activation domains are regulated independently of each other by zinc binding directly to those regions and repressing activation function. In this report, we show that Zap1 DNA binding is also inhibited by zinc. DMS footprinting showed that Zap1 target gene promoter occupancy is regulated with or without transcriptional autoregulation. These results were confirmed using chromatin immunoprecipitation. Zinc regulation of DNA binding activity mapped to the DNA binding domain indicating other parts of Zap1 are unnecessary for this control. Overexpression of Zap1 overrode DNA binding regulation and resulted in constitutive promoter occupancy. Under these conditions of constitutive binding, both the zinc dose response of Zap1 activity and cellular zinc accumulation were altered suggesting the importance of DNA binding control to zinc homeostasis. Thus, our results indicated that zinc regulates Zap1 activity post-translationally via three independent mechanisms, all of

Avery G. Frey; A J. Bird; Marguerite V. Evans-galea; Elizabeth Blankman; Dennis R. Winge; David J. Eide
2011-01-01

258

(Data in thousand metric tons of zinc content unless otherwise noted) Domestic Production and Use: The value of zinc mined in 2008, based on zinc contained in concentrate, was about

  Environmental Sciences and Ecology Websites

Summary: 186 ZINC (Data in thousand metric tons of zinc content unless otherwise noted) Domestic Production and Use: The value of zinc mined in 2008, based on zinc contained in concentrate, was about $1.51 billion secondary--produced the bulk of refined zinc metal of commercial grade in 2008. Of the total zinc consumed


259

(Data in thousand metric tons of zinc content unless otherwise noted) Domestic Production and Use: The value of zinc mined in 2009, based on zinc contained in concentrate, was about

  Environmental Sciences and Ecology Websites

Summary: 184 ZINC (Data in thousand metric tons of zinc content unless otherwise noted) Domestic Production and Use: The value of zinc mined in 2009, based on zinc contained in concentrate, was about $1.18 billion secondary--produced the bulk of refined zinc metal of commercial grade in 2009. Of the total zinc consumed


260

(Data in thousand metric tons of zinc content unless otherwise noted) Domestic Production and Use: The value of zinc mined in 2010, based on zinc contained in concentrate, was about

  Environmental Sciences and Ecology Websites

Summary: 188 ZINC (Data in thousand metric tons of zinc content unless otherwise noted) Domestic Production and Use: The value of zinc mined in 2010, based on zinc contained in concentrate, was about $1.65 billion secondary--produced the bulk of refined zinc metal of commercial grade in 2010. Of the total zinc consumed


261

(Data in thousand metric tons of zinc content unless otherwise noted) Domestic Production and Use: The value of zinc mined in 2012, based on zinc contained in concentrate, was about

  Environmental Sciences and Ecology Websites

Summary: 188 ZINC (Data in thousand metric tons of zinc content unless otherwise noted) Domestic Production and Use: The value of zinc mined in 2012, based on zinc contained in concentrate, was about $1.53 billion secondary--produced the bulk of refined zinc metal of commercial grade in 2012. Of the total zinc consumed


262

(Data in thousand metric tons of zinc content unless otherwise noted) Domestic Production and Use: The value of zinc mined in 2011, based on zinc contained in concentrate, was about

  Environmental Sciences and Ecology Websites

Summary: 188 ZINC (Data in thousand metric tons of zinc content unless otherwise noted) Domestic Production and Use: The value of zinc mined in 2011, based on zinc contained in concentrate, was about $1.78 billion secondary--produced the bulk of refined zinc metal of commercial grade in 2011. Of the total zinc consumed


263

Synthetic Control and Bioconjugation of Magnetite Nanoparticles for the Development of an in vivo Glucose Sensor

  University of Kansas - KU ScholarWorks

Summary: In this work, an examination into the synthesis, functionalization, and utility of iron oxide nanoparticles was conducted for the development of an in vivo glucose biosensor based on the catalytic cycle of glucose oxidase and amperometric detection...

Gingrich, Phillip
2014-08-31

264

Magnetic nanoparticles : synthesis, characterization, applications and systematic study of exchanging biasing

  MIT - DSpace

Summary: We systematically investigated the magnetic properties of colloidal cobalt nanoparticles after three extents of oxidation: The native sample has a thin (1.0 nm) CoO shell and exhibits no exchange biasing. The purposefully ...

Tracy, Joseph B. (Joseph Benjamin)
2005-01-01

265

NANO EXPRESS Open Access An effective oxidation approach for luminescence

  Materials Science Websites

Summary: of the enhanced PL properties with the quantum dot size, local strain, chemical states, and radiative recom on the photoluminescence (PL) properties of CdS nanoparticles oxidized by straightforward H2O2 injection were examinedS nanoparticles showed significantly enhanced luminescence properties (quantum efficiency 20%). The surface

Park, Byungwoo

266

Regulation of phospholipid synthesis in Saccharomyces cerevisiae by zinc depletion

  Biology and Medicine Websites

Summary: Review Regulation of phospholipid synthesis in Saccharomyces cerevisiae by zinc depletion George M is regulated by zinc, an essential mineral required for growth and metabolism. Cells depleted of zinc contain pyrophosphate decrease in the vacuole membrane of zinc-depleted cells. Alterations in phosphatidylinositol

Chen, Kuang-Yu

267

ZINC--1998 85.1 By Jozef Plachy

  Environmental Sciences and Ecology Websites

Summary: ZINC--1998 85.1 ZINC By Jozef Plachy Domestic survey data and tables were prepared by Brandon P and Ronald L. Hatch, international data coordinators. In 1998, domestic zinc mine production, expressed in zinc content of ore, increased by nearly 20% from that of 1997 mainly because of increased production


268

Characterization of a plasma membrane zinc transporter in rat brain

  Biology and Medicine Websites

Summary: Characterization of a plasma membrane zinc transporter in rat brain Robert A. Colvin* Department; received in revised form 26 March 1998; accepted 31 March 1998 Abstract Many studies now show that zinc mechanisms of zinc efflux and influx are largely unknown and few models exist that describe cellular zinc


269

REGULAR ARTICLE Grain zinc, iron and protein concentrations

  Computer Technologies and Information Sciences Websites

Summary: REGULAR ARTICLE Grain zinc, iron and protein concentrations and zinc-efficiency in wild emmer wheat, and particularly deficiency in zinc (Zn) and iron (Fe), afflicts over three billion people worldwide, and nearly tolerance) on a Zn-deficient calcareous soil. Zinc efficiency, expressed as the ratio of shoot dry matter

Yanikoglu, Berrin

270

In search of the lost zinc: A lesson from the Jabali (Yemen) nonsul de zinc deposit N. Mondillo a

  Geosciences Websites

Summary: In search of the lost zinc: A lesson from the Jabali (Yemen) nonsul de zinc deposit N. Mondillo, Via Mezzocannone 8, 80134 Napoli, Italy b ZincOx Resources plc Knightway House Park Street Bagshot-dolomite Mineralogy Geochemistry Evaluation Recovery The Jabali nonsul de zinc deposit, located northeast of Sana

Boni, Maria

271

Reversible Repositioning of Zinc Atoms within Single Crystals of a Zinc Polycarboxylate with an Open-Framework Structure

  Chemistry Websites

Summary: Reversible Repositioning of Zinc Atoms within Single Crystals of a Zinc Polycarboxylate compounds, we observed an unprecedented phenomenon. Upon heating under vacuum, the zinc compound not only loses water, but some of the zinc atoms move to different positions in the structure while preserving


272

Zinc levels in hair of pre-adolescent females

  Texas A&M University - TxSpace

Summary: supplemented with zinc. Solomons et al, (4) evaluated zinc nutriture of children attending a pediatric endocrinology clinic for growth retardation. These children did not evidence symptoms of zinc deficiency syndrome. In contrast, five patients with total... (14), Zinc is a necessary component for the action of both procaryotic DNA-dependent DNA and RNA polymerases (15, 16). A zinc deficiency syndrome was first reported by Prasad et al. (17) in 1963. Young males in the Nile Delta exhibited. retarded...

Earp, Cheryl Fricke
1978-01-01

273

Synthesis, Characterization and Integration of Piezoelectric Zinc Oxide

  CiteSeer

Summary: For my familyAcknowledgements It would be incredibly long if I thanked everyone who has ever helped me or sacrificed so I could write this and be in this position. I apologize if you werent listed here. From the beginning, I have been surrounded with people that have guided me on my path. I would like to thank several teachers from high school, most notably Eduardo Cancino and Juan Ibarra for seeing the potential in me. I would like to offer thanks to my high school football coach Ernest Sanchez, for teaching me about how to take the hardest hits and keep my feet moving. My appreciation goes to my undergraduate advisor at Michigan, Prof. Noel Perkins, who taught me to enjoy struggling for solutions. My deepest thanks go to my undergraduate mentor at Michigan, Prof. Steven Skerlos, who defines the Michigan Difference and without, I wouldnt have attended graduate school. I would like to thank my supervisor here at Texas, Prof. Shaochen Chen, for supporting me through my doctoral study and for the opportunity to work with him. I would like to thank my co-supervisor here at Texas, Dr. Marc Feldman, for his encouragement and invaluable comments during this dissertation. I am indebted to Prof. Brian Korgel, for

Carlos Andres Aguilar; Marc D. Feldman; Brian Korgel; Dean Neikirk; Li Shi; Carlos Andres Aguilar

274

Scintillation properties of ceramics based on zinc oxide

  CERN Preprints

Summary: Ceramics ZnO:Zn of 20mm diameter and 1.6mm thickness with an optical transparency up to 0.33 in the visible region have been prepared by hot pressing technique. Scintillating and luminescent characteristics such as emission spectra, decay time, yield, and TSL glow curve have been measured under X-ray excitation. Two emission bands peaking at 500 and 380 nm were detected, the light output was about 80% of that for standard BGO scintillator, main decay constant was 10.4 0.1 ns. The obtained data allow us to consider the ZnO:Zn ceramics as a perspective scintillator. Finally, the investigation shows that other ZnO-based fast scintillators can be fabricated in the form of optical ceramics.

Demidenko, V A; Khodyuk, I V; Khristich, O A; Mikhrin, S B; Rodnyi, P A
2010-01-01

275

Properties and sensor performance of zinc oxide thin films

  MIT - DSpace

Summary: Reactively sputtered ZnO thin film gas sensors were fabricated onto Si wafers. The atmosphere dependent electrical response of the ZnO micro arrays was examined. The effects of processing conditions on the properties and ...

Min, Yongki, 1965-
2003-01-01

276

INFRARED SPECTROSCOPY OF ZINC OXIDE AND MAGNESIUM NANOSTRUCTURES By

  CiteSeer

Summary: The members of the Committee appointed to examine the dissertation of WIN MAW HLAING OO find it satisfactory and recommend that it be accepted. Chair ii ACKNOWLEDGEMENTS Many people have helped me accomplish this dissertation, and I owe my gratitude to all of them. First and foremost I would like to thank my advisor, Prof. Matthew McCluskey, without whose guidance and advice this dissertation would not be what it is today. His patience and support rescued me from despair on countless occasions. I am also thankful to Prof. Susan Dexheimer and Prof. Grant Norton for serving on my dissertation committee and for their invaluable suggestions and help. I wish to express my gratitude to former members of McCluskey group; Dr. Slade Jokela and Dr. Kirill Zhuravlev for offering their expertise. I am also grateful to Gabriel Hanna, Marianne Tarun, Jennie Schei and Bobbie Riley who are current members for their help. I would like to thank the members of Departments of Physics and Astronomy, and Materials Science Program. Thanks to all of my friends, especially Natnael Embaye, Francis Morrissey, Christopher Dudley, Jalal Nawash, and Loren Cramer for their encouragement. I am also grateful to Prof. Leah Bergman (University of Idaho) and Prof. Yiping Zhao (University of Georgia), as well as their research group members for their collaborations.

Win Maw; Hlaing Oo

277

Whispering Gallery Mode Lasing from Zinc Oxide Hexagonal Nanodisks

  Chemistry Websites

Summary: -chip nanophotonic integration. Unlike cavities that lase via Fabry Perot modes, WGM structures utilize low ultra-low- threshold continuous-wave lasing micro- disks,11 high-Q silicon nanocrystal resonators,12- scale resonator must be sufficiently high to compensate for low optical mode confine- ment

Yang, Peidong

278

Synthesis and Characterization of Functional Nanostructured Zinc Oxide Thin Films

  Physics Websites

Summary: .1149/1.2357098, copyright The Electrochemical Society 65 #12;66 reduced environmental impact and a minimum undesirable inter-temperature thin film growth technique has been developed to fabricate a new generation of smart and functional and structural requirements of their applications in gas sensors and solar cells. The rapid photothermal

Chow, Lee

279

Scintillation properties of ceramics based on zinc oxide

  Nuclear Experiment (arXiv)

Summary: Ceramics ZnO:Zn of 20mm diameter and 1.6mm thickness with an optical transparency up to 0.33 in the visible region have been prepared by hot pressing technique. Scintillating and luminescent characteristics such as emission spectra, decay time, yield, and TSL glow curve have been measured under X-ray excitation. Two emission bands peaking at 500 and 380 nm were detected, the light output was about 80% of that for standard BGO scintillator, main decay constant was 10.4 +/- 0.1 ns. The obtained data allow us to consider the ZnO:Zn ceramics as a perspective scintillator. Finally, the investigation shows that other ZnO-based fast scintillators can be fabricated in the form of optical ceramics.

V. A. Demidenko; E. I. Gorokhova; I. V. Khodyuk; O. A. Khristich; S. B. Mikhrin; P. A. Rodnyi
2010-09-07

280

JCB Article Zinc and the Msc2 zinc transporter protein are required for endoplasmic reticulum function

  CiteSeer

Summary: In this report, we show that zinc is required for endoplasmic reticulum function in Saccharomyces cerevisiae. Zinc deficiency in this yeast induces the unfolded protein response (UPR), a system normally activated by unfolded ER proteins. Msc2, a member of the cation diffusion facilitator (CDF) family of metal ion transporters, was previously implicated in zinc homeostasis. Our results indicate that Msc2 is one route of zinc entry into the ER. Msc2 localizes to the ER when expressed at normal levels. UPR induction

Charissa D. Ellis; Fudi Wang; Colin W. Macdiarmid; Suzanne Clark; Thomas Lyons; David J. Eide

281

Malarial Parasites Accumulate Labile Zinc Pools

  MIT - DSpace

Summary: The malarial parasite, Plasmodium falciparum, is an intracellular pathogen and partially dependent on nutrient uptake for survival. In this issue of Chemistry & Biology, Marvin et al. demonstrate that zinc is essential for ...

Niles, Jacquin

282

Reactive self-heating model of aluminum spherical nanoparticles

  Mathematical Physics (arXiv)

Summary: Aluminum-oxygen reaction is important in many highly energetic, high pressure generating systems. Recent experiments with nanostructured thermites suggest that oxidation of aluminum nanoparticles occurs in a few microseconds. Such rapid reaction cannot be explained by a conventional diffusion-based mechanism. We present a rapid oxidation model of a spherical aluminum nanoparticle, using Cabrera-Mott moving boundary mechanism, and taking self-heating into account. In our model, electric potential solves the nonlinear Poisson equation. In contrast with the Coulomb potential, a "double-layer" type solution for the potential and self-heating leads to enhanced oxidation rates. At maximal reaction temperature of 2000 C, our model predicts overall oxidation time scale in microseconds range, in agreement with experimental evidence.

Karen S. Martirosyan; Maxim Zyskin
2012-12-17

283

Reactive self-heating model of aluminum spherical nanoparticles

  CERN Preprints

Summary: Aluminum-oxygen reaction is important in many highly energetic, high pressure generating systems. Recent experiments with nanostructured thermites suggest that oxidation of aluminum nanoparticles occurs in a few microseconds. Such rapid reaction cannot be explained by a conventional diffusion-based mechanism. We present a rapid oxidation model of a spherical aluminum nanoparticle, using Cabrera-Mott moving boundary mechanism, and taking self-heating into account. In our model, electric potential solves the nonlinear Poisson equation. In contrast with the Coulomb potential, a "double-layer" type solution for the potential and self-heating leads to enhanced oxidation rates. At maximal reaction temperature of 2000 C, our model predicts overall oxidation time scale in microseconds range, in agreement with experimental evidence.

Martirosyan, Karen S
2012-01-01

284

Transparent conducting oxides for active hybrid metamaterial devices This article has been downloaded from IOPscience. Please scroll down to see the full text article.

  Materials Science Websites

Summary: Transparent conducting oxides for active hybrid metamaterial devices This article has been are covered with a 20 nm thin layer of transparent conducting oxide (TCO). We investigate the response of atomic layer deposited aluminum-doped zinc oxide (AZO) next to indium­tin oxide (ITO) produced using

Zheludev, Nikolay

285

PROCESSES WITH CONTACT ic030308 Activity 030308 SNAP CODE: 030308 SOURCE ACTIVITY TITLE: PROCESSES WITH CONTACT Secondary Zinc Production NOSE CODE: 104.12.09

  CiteSeer

Summary: 1 ACTIVITIES INCLUDED Zinc is produced from various primary and secondary raw materials. The primary processes use sulphidic and oxidic concentrates, while in secondary processes recycled oxidised and metallic products mostly from other metallurgical operations are employed. This chapter includes information on atmospheric emissions during the production of secondary zinc. In practice, a clear distinction of primary and secondary zinc production is often difficult, because many smelters use both primary and secondary raw materials. Zinc production in the western world stood at about 5.2 million tonnes in 1990. Of this, 4.73 million tonnes originate from primary resources (ores), while the balance of 0.47 million tonnes is produced at the smelters from secondary raw materials (Metallgesellschaft 1994). The production of zinc in secondary smelters is increasing in various regions of the world. This increase can be as high as 5 % per year in Eastern Europe. This chapter describes the methods to estimate both combustion and process emissions of atmospheric pollutants during the secondary zinc recovery from various types of zinc scrap (e.g. Barbour et al, 1978). 2 CONTRIBUTIONS TO TOTAL EMISSIONS There are several trace metals as well as dioxins and furans which can be emitted during the secondary zinc production process. However, heavy metal emissions from this source category are not very significant on a global scale. Nriagu and Pacyna (1988) concluded that the secondary zinc production contributes well below 1 % of the total atmospheric emissions of lead, cadmium, antimony, selenium, and zinc. A similar contribution to European atmospheric emissions from secondary zinc production was estimated at the beginning of the 1980s (Pacyna, 1983). The estimated contribution of both primary and secondary zinc production to European emissions is given in Table 2.1 (Berdowski 1997). However, a secondary zinc smelter can be an important emission source on a local scale. The contribution of emissions released from secondary zinc production to total emissions of those pollutants covered by the CORINAIR90 inventory is negligible (see Table 2.2).

Nfr Code

286

Published: April 12, 2011 r 2011 American Chemical Society 8573 dx.doi.org/10.1021/jp106144p |J. Phys. Chem. C 2011, 115, 85738579

  Materials Science Websites

Summary: Transfer Reactivity at the Zinc OxideWater Interface David Raymand, Adri C.T. van Duin, William A. Goddard. INTRODUCTION Zinc oxide is used in nanoparticle applications, for instance in mesoporous metal oxide electrodes titration, Blok and de Bruyn8 proposed that the ZnO surface in contact with water may be regarded as zinc

Goddard III, William A.

287

(Data in thousand metric tons of zinc content unless otherwise noted) Domestic Production and Use: The value of zinc mined in 2007, based on zinc contained in concentrate, was about

  Environmental Sciences and Ecology Websites

Summary: 190 ZINC (Data in thousand metric tons of zinc content unless otherwise noted) Domestic Production and Use: The value of zinc mined in 2007, based on zinc contained in concentrate, was about $2.59 billion U.S. production. One primary and 12 large- and medium-sized secondary smelters refined zinc metal


288

(Data in thousand metric tons of zinc content unless otherwise noted) Domestic Production and Use: The value of zinc mined in 2013, based on zinc contained in concentrate, was about

  Environmental Sciences and Ecology Websites

Summary: 186 ZINC (Data in thousand metric tons of zinc content unless otherwise noted) Domestic Production and Use: The value of zinc mined in 2013, based on zinc contained in concentrate, was about $1.60 billion. Zinc was mined in 4 States at 14 mines operated by 4 companies. Two facilities--one primary


289

Layer-by-layer assembly of graphene and gold nanoparticles by vacuum filtration and spontaneous reduction of gold ionsw

  Mathematics Websites

Summary: Layer-by-layer assembly of graphene and gold nanoparticles by vacuum filtration and spontaneous 2009 DOI: 10.1039/b821920f Layer-by-layer films comprised of alternating graphene and gold nanoparticle graphene oxide solution to fabricate the graphene thin film on the quartz substrate, followed by gold

Kim, Yong Jung

290

Evolution of the Structure and Chemical State of Pd Nanoparticles during the in situ Catalytic Reduction of

  Engineering Websites

Summary: catalysts. We report the evolution of the structure and oxidation state of ZrO2-supported Pd nanocatalysts initial metallic Pd nanoparticles over the ZrO2 support was observed, and Pd+ species detected: catalysis, nanoparticle, Pd, ZrO2, NO, selective catalytic reduction, PdO, hydride, X-ray absorption fine

Kik, Pieter

291

Zinc Speciation in a Smelter-Contaminated Soil Profile

  Environmental Management and Restoration Websites

Summary: Zinc Speciation in a Smelter-Contaminated Soil Profile Using Bulk and Microspectroscopic Techniques. One significant metal contaminant in soils is zinc, which is mined in 50 countries and smelted in 21

Sparks, Donald L.

292

STUDIES ON ZINC NODULES ELECTRODEPOSITED FROM ACID ELECTROLYTES

  University of California eScholarship Repository

Summary: and Dendri- tic Growth from Zinc Halide Electrolytes," Finalgrowth structures are apparent, Although undoubtably an important of the zinc'szinc potentiostatically on glassy carbon and resulting current transient could be fit to a model involving instan- by growth

Anderson, R.
2011-01-01

293

Dispenser Printed Zinc Microbattery with an Ionic Liquid Gel Electrolyte

  University of California eScholarship Repository

Summary: was caused by the zinc dendrite growth, which effectivelygrowth is visible especially at the interfaces between the electrolyte and zincgrowth is visible especially at the interfaces between the electrolyte and zinc

Ho, Christine Chihfan
2010-01-01

294

Targeted sensors for investigating mobile Zinc in biology

  MIT - DSpace

Summary: Chapter 1. Sensing Strategies for Detection of Mobile Zinc. Mobile zinc plays important physiological roles in areas such as the hippocampus, prostate, and pancreas. A better understanding of the distribution of intracellular ...

Chyan, Wen, S.B. Massachusetts Institute of Technology
2013-01-01

295

Cystein as a Corrosion Inhibitor for Zinc in Acidic Solutions

  CiteSeer

Summary: Abstract- The amino acid, cystein was examined as an inhibitor for zinc in 0.5N HCl was using weight loss and potentiodynamic polarization studies. Corrosion parameters such as inhibition efficiency, corrosion rates, corrosion potential and corrosion current were evaluated. The inhibition efficiency was found to increase with increase in the inhibitor concentration. The adsorption of the inhibitor on the zinc surface followed Temkin adsorption isotherm. Index Terms- cystein, acidic solutions, zinc corrosion, weight loss, potentiodynamic polarization. Where Wo and Wi are the weight loss of zinc in the absence and presence of the inhibitor respectively. The corrosion rate (C.R) of the zinc was calculated by using the following equation. Where W is the weight loss of the zinc (mg), A is the surface area of the zinc specimen(cm 2), t is the exposure time (h) and D is the density of the zinc metal (g/cm 3). Z I.

A. Pasupathy; S. Nirmala; G. Abirami; A. Satish; R. Paul Milton

296

Support dependence of MeOH decomposition over size-selected Pt nanoparticles Jason R. Croy1

  Engineering Websites

Summary: , and oxidation [3]. These processes require the use of metallic nanoparticle catalysts such as Cu, Pt, and Pd, the temporal decay in the performance of Pt-based fuel cell electrodes has been attributed to the formation

Kik, Pieter

297

INSTRUCTIONS GelCode E-ZincTM

  Biotechnology Websites

Summary: INSTRUCTIONS 079724582 GelCode® E-ZincTM Reversible Stain Kit 3747 N. Meridian Road P.O. Box 117-842-5007 Internet: http://www.piercenet.com 1 Product Description Number Description 24582 GelCode® E-ZincTM Reversible Stain Kit, 500 ml GelCode® E-ZincTM Developer, 500 ml GelCode® E-ZincTM Eraser, 500 ml Store

Lebendiker, Mario

298

Three-dimensionalimage oftubulinin zinc-inducedsheets, reconstructed

  Biology and Medicine Websites

Summary: Three-dimensionalimage oftubulinin zinc-inducedsheets, reconstructed fromelectronmicrographs large arrays of tubulin protofilaments assemble when zinc ions are added to buffers normally used for microtubule reassembly'.`. The projected structure of the zinc-induced sheets in 0141 x130, 79 040146 11

Baker, Timothy S.

299

PHOTOLUMINESCENCE STUDY OF CADMIUM ZINC TELLURIDE Thesis submitted to the

  Physics Websites

Summary: PHOTOLUMINESCENCE STUDY OF CADMIUM ZINC TELLURIDE Swati Jain Thesis submitted to the Eberly CollegeZnTe, CZT, Cd1-xZnxTe #12;ABSTRACT PHOTOLUMINESCENCE STUDY OF CADMIUM ZINC TELLURIDE SWATI JAIN point defects in bulk CdZnTe (CZT) crystals, 2) determining the zinc concentration in these crystals

Myers, Tom

300

Original article Pancreatic secretion of zinc and carboxypeptidase

  Physics Websites

Summary: Original article Pancreatic secretion of zinc and carboxypeptidase A and B in growing pigs Mette S (Received 6 October 1997; accepted 20 June 1998) Abstract - The secretion of zinc and the level (CM pigs). The zinc in the pan- creatic juice appeared to be primarily associated

Paris-Sud XI, Université de

301

Thermally stimulated currents in undoped and doped zinc phthalocyanine films

  Physics Websites

Summary: 1127 Thermally stimulated currents in undoped and doped zinc phthalocyanine films B. Boudjema, N Zinc non dopés et dopés. Un mécanisme de Poole Frenkel est mis en évidence dans un intervalle de transport in Zinc Phthalocyanine films (1.2 03BC thick) undoped and n and p doped. A Poole Frenkel mechanism

Paris-Sud XI, Université de

302

Using Zinc to Reduce Cadmium in Durum Grain Joyce Eckhoff

  Environmental Sciences and Ecology Websites

Summary: Using Zinc to Reduce Cadmium in Durum Grain Joyce Eckhoff MSU Eastern Agricultural Research Center in Saskatchewan, zinc (Zn) applied to soil prior to planting significantly reduced Cd in durum grain, while Zn). Zinc applied with the seed had no effect on grain Cd or Zn content. Chelated Zn applied foliarly

Lawrence, Rick L.

303

Natural Attenuation of Zinc Pollution in Smelter-Affected Soil

  Physics Websites

Summary: Natural Attenuation of Zinc Pollution in Smelter-Affected Soil M . V E S P A , M . L A N S O N negatively with biomass production. Zinc can be also inaccessible in soil. Understanding its speciation-24). Zinc can beincorporatedandstabilizedbyalargenumberofsecondary minerals, because its ionic radius (0


304

Supplemental Data S1 Weckle Is a Zinc Finger Adaptor

  Biology and Medicine Websites

Summary: Supplemental Data S1 Weckle Is a Zinc Finger Adaptor of the Toll Pathway in Dorsoventral Patterning standard protocol (BDGP). #12;Figure S1. wek Encodes a Zinc Finger-Containing Protein (A) Schematic 273­470) with six zinc finger motifs. (C) Alignment of N domain. The consensus sequence of N domain

Perrimon, Norbert

305

ZINC SIGNALING IN NEURONAL TOLERANCE Mandar Anil Aras

  Biology and Medicine Websites

Summary: ZINC SIGNALING IN NEURONAL TOLERANCE by Mandar Anil Aras B.S. Neuroscience and Economics Aizenman, Professor, Department of Neurobiology ii #12;Copyright © by Mandar Anil Aras 2009 iii #12;ZINC.3 EXCITOTOXICITY MODELS ISCHEMIC NEURONAL DEATH ............ 3 1.4 ROLE OF ZINC IN ISCHEMIC NEURONAL DEATH

Sibille, Etienne

306

Research Report Zinquin identifies subcellular compartmentalization of zinc in

  Biology and Medicine Websites

Summary: Research Report Zinquin identifies subcellular compartmentalization of zinc in cortical neurons. Relation to the trafficking of zinc and the mitochondrial compartment Robert A. Colvin, Meggan Laskowski. Keywords: Zinc sequestration Primary cell culture Fluorescence microscopy Rat brain Endosome B R A I N R E


307

Effect of Natural Organic Matter on Zinc Inhibition of Hematite

  Engineering Websites

Summary: Effect of Natural Organic Matter on Zinc Inhibition of Hematite Bioreduction by Shewanella Sackett Building, University Park, Pennsylvania 16802 The effect of zinc on the biological reduction-growth conditions with H2 as the electron donor and zinc inhibition was quantified as the decrease in the 5 d extent

Burgos, William

308

Free Zinc Ion and Dissolved Orthophosphate Effects on

  Multidisciplinary Databases and Resources Websites

Summary: Free Zinc Ion and Dissolved Orthophosphate Effects on Phytoplankton from Coeur d'Alene Lake, Idaho. This phosphorus-limited lake has been subjected to decades of mining (primarily for zinc and silver) and other of free (uncomplexed) zinc ion and dissolved- orthophosphate concentrations on phytoplankton that were


309

Original article Comparative relationship between copper-zinc plasma

  Physics Websites

Summary: Original article Comparative relationship between copper-zinc plasma concentrations and superoxide an oral trace element supplement for 3 months (days 22-1 12). This supplement contained zinc and copper sulphate, and corresponded to twice the daily requirement generally recommended for cows. Plasma zinc

Paris-Sud XI, Université de

310

Mechanism of zinc-mediated inhibition of caspase-9

  Chemistry Websites

Summary: Mechanism of zinc-mediated inhibition of caspase-9 Kristen L. Huber and Jeanne A. Hardy* Department; Accepted 25 April 2012 DOI: 10.1002/pro.2090 Published online 9 May 2012 proteinscience.org Abstract: Zinc-mediated inhibition is implicated in global caspase regulation, with relief of zinc- mediated inhibition central

Hardy, Jeanne

311

REVIEW ARTICLE Improving zinc bioavailability in transition from flooded

  Physics Websites

Summary: REVIEW ARTICLE Improving zinc bioavailability in transition from flooded to aerobic rice. A review Abstract Zinc (Zn) deficiency is a widely occurring constraint for rice production and for human nutrition on Zn deficiency in rice. Zinc bioavailability is a function of both soil and plant factors that can

Paris-Sud XI, Université de

312

Genome Engineering With Zinc-Finger Nucleases Dana Carroll1

  Biology and Medicine Websites

Summary: REVIEW Genome Engineering With Zinc-Finger Nucleases Dana Carroll1 Department of Biochemistry, University of Utah School of Medicine, Salt Lake City, Utah 84112-5650 ABSTRACT Zinc-finger nucleases (ZFNs and situations. Considerable progress has been made in methods for deriving zinc-finger sets for new genomic


313

Forms of Zinc Accumulated in the Hyperaccumulator Arabidopsis halleri1

  Physics Websites

Summary: Forms of Zinc Accumulated in the Hyperaccumulator Arabidopsis halleri1 Ge´raldine Sarret*, Pierre, MS 6­2100, Berkeley, California 94720 (M.A.M.) The chemical forms of zinc (Zn) in the Zn in their aerial parts, more than typically 10,000 g g 1 dry weight for zinc (Zn; Baker and Walker, 1990


314

COPPER AND ZINC DEFICIENCIES TREATMENT BY INTRAMUSCULAR INJECTIONS IN SHEEP

  Physics Websites

Summary: COPPER AND ZINC DEFICIENCIES TREATMENT BY INTRAMUSCULAR INJECTIONS IN SHEEP M. LAMAND Claudine LAB Beaumont, France. Résumé TRAITEMENT DES CARENCES EN CUIVRE ET EN ZINC PAR INJECTION INTRAMUSCU- LAIRE CHEZ d'oxyde de zinc par voie intramusculaire, en suspension dans l'huile d'olive. Dans chaque expérience

Paris-Sud XI, Université de

315

Cellular/Molecular Intracellular Zinc Elevation Measured with a "Calcium-

  Biology and Medicine Websites

Summary: Cellular/Molecular Intracellular Zinc Elevation Measured with a "Calcium- Specific" Indicator )asasecondmessengercomesfromitsinteractionwithfluorescent probes; however, many Ca2 probes also have a higher affinity for another divalent cation: zinc (Zn attributed to Ca2 could, in part, be attributable to Zn2 . Key words: zinc; calcium; fluorescence; ischemia

Li, Yang V.

316

Biotransference and biomagnification of selenium copper, cadmium, zinc, arsenic and

  Environmental Sciences and Ecology Websites

Summary: Biotransference and biomagnification of selenium copper, cadmium, zinc, arsenic and lead the biotransference of selenium copper, cadmium, zinc, arsenic and lead was measured in a contaminated seagrass. There was no evidence of copper, cadmium, zinc or lead biomagnification within the food web examined. Copper, cadmium

Canberra, University of

317

Self-AssemblyofZincPorphyrinsaround thePeripheryofHydrogen-Bonded

  Physics Websites

Summary: Self-AssemblyofZincPorphyrinsaround thePeripheryofHydrogen-Bonded Aggregates efforts. Here, we report the incorporation of zinc tetraphenyl porphyrin.imidazole interactions into derivatives of 5 and 6. There are four advantages to using zinc.imidazole interactions in addition to hydrogen

Prentiss, Mara

318

Plant-based FRET biosensor discriminates environmental zinc levels

  Environmental Sciences and Ecology Websites

Summary: Plant-based FRET biosensor discriminates environmental zinc levels Joshua P. Adams1, *, Ardeshir. *Correspondence (Tel +1 870 460 1348; fax +1 870 460 1092; email adamsj@uamont.edu) Keywords: zinc interaction fluorescent resonance energy transfer (FRET) change in response to zinc (Zn) accumulation in plants as a proxy

dePamphilis, Claude

319

Geology Club Field Trip New Jersey Zinc Mine and Vicinity

  Geosciences Websites

Summary: Geology Club Field Trip New Jersey Zinc Mine and Vicinity Ogdensburg, NJ 3-4 May 2008 Bedrock map of the area surrounding the New Jersey Zinc Mine in Ogdensburg, New Jersey. The mines are found and revel in the history and beauty of America's unique zinc mines and minerals." Jones neglects to add how

Merguerian, Charles

320

Plant physiology Relative efficiency of two zinc sources for maize

  Physics Websites

Summary: Plant physiology Relative efficiency of two zinc sources for maize (Zea mays L.) in two calcareous might be due to less fixation and greater transport and movement of chelated Zn to plant roots. zinc - maize - fertilization - calcareous soil - Iran Résumé Efficacité relative de deux formes de zinc

Paris-Sud XI, Université de

321

Zinc Attenuates Malathion-Induced Depressant-like Behavior and Confers Neuroprotection in the Rat Brain

  CiteSeer

Summary: Malathion is an organophosphate widely used as an insecticide in agriculture and in public health programs, causing risk to human health. As was recently reported, malathion induces depressant-like behavior and oxidative damage to the brain of rodents. Given the relevance of searching for neuroprotective agents against such damage, this study was therefore undertaken to investigate the neuroprotective potential of zinc in dealing with malathion-related toxicity. Female Wistar rats were exposed to malathion (50 and 100 mg/kg, ip) and/or zinc chloride (ZnCl 2; 5 mg/kg, ip) for 3 days. Malathion produced a depressant-like effect, observed by the increased immobility time in the forced swimming test (FST), without affecting total locomotor activity and rearing in the open-field. However, malathion administered at 50 mg/kg reduced the central time in the arena and at the dose of 100 mg/kg reduced the central locomotion. These effects were completely

Patrcia S. Brocardo; Fabrcio Assini; Jeferson L. Franco; Pablo P; Yara M. R. Mller; Reinaldo N. Takahashi; Alcir L. Dafre; Ana Lcia; S. Rodrigues
2007-01-01

322

Divalent metal nanoparticles

  MIT - DSpace

Summary: Metal nanoparticles hold promise for many scientific and technological applications, such as chemical and biological sensors, vehicles for drug delivery, and subdiffraction limit waveguides. To fabricate such devices, a ...

DeVries, Gretchen Anne
2008-01-01

323

Targeting Strategies for Multifunctional Nanoparticles in Cancer Imaging and Therapy. Theranostics

  CiteSeer

Summary: licenses/by-nc-nd/3.0/). Reproduction is permitted for personal, noncommercial use, provided that the article is in whole, unmodified, and properly cited. Received: 2011.08.30; Accepted: 2011.09.28; Published: 2012.01.01 Nanomaterials offer new opportunities for cancer diagnosis and treatment. Multifunctional nanoparticles harboring various functions including targeting, imaging, therapy, and etc have been intensively studied aiming to overcome limitations associated with conventional cancer diagnosis and therapy. Of various nanoparticles, magnetic iron oxide nanoparticles with superparamagnetic property have shown potential as multifunctional nanoparticles for clinical translation because they have been used asmagnetic resonance imaging (MRI) constrast agents in clinic and their features could be easily tailored by including targeting moieties, fluorescence dyes, or therapeutic agents. This review summarizes targeting strategies for construction of multifunctional nanoparticles including magnetic nanoparticles-based theranostic systems, and the various surface engineering strategies of nanoparticles for in vivo applications. Key words: Multifunctional nanoparticles, magnetic nanoparticles, targeting ligand, bioconjugation, surface engineering, long circulation

Mi Kyung Yu; Jinho Park; Sangyong Jon

324

Overexpression of Human Superoxide Dismutase Inhibits Oxidation of Low-Density Lipoprotein by Endothelial Cells

  Biology and Medicine Websites

Summary: oxidation. Inclusion of exogenous copper/zinc superoxide dismutase (Cu/ZnSOD, 100 g/mL) in the medium in vitro requires the presence of low concentrations of copper or iron in the medium and can be inhibited with cells prevented LDL oxidation.8­10 In contrast, others have reported that the addition of SOD did

Engelhardt, John F.

325

Atomic-Scale Study of Calcite Nucleation in Calcium Oxide Rmy Besson*

  Physics Websites

Summary: Atomic-Scale Study of Calcite Nucleation in Calcium Oxide Rémy Besson* Groupe de Métallurgie for the thermal dehydration of magnesium oxalate dihydrate9 and zinc acetate dihydrate10 . In this context, the CaO-CaCO3 system appears as a good candidate in order to get better insight into these issues. Calcium oxide

Paris-Sud XI, Université de

326

DISEASE RESEARCH, BANGLADESH Zinc Deficiency: Descriptive Epidemiology and

  CiteSeer

Summary: Community-based data relating to factors influencing zinc deficiency among preschool children in India are inadequate. Data of a large, double-blinded, randomized, controlled zinc-supplementation trial were used for assessing the descriptive epidemiology of zinc deficiency among children aged 6-35 months (n=940). In total, 609 children were followed up for 120 days for information on morbidity. Of these children, 116 from the control group belonging to the upper and the lower 25 th quartile of plasma zinc status at baseline were selected for assessing the association of zinc deficiency with prospective morbidity. At baseline, demographic, socioeconomic and dietary information was collected, and anthropometric measurements and levels of plasma zinc were assessed. At baseline, 73.3 % of the children were zinc-deficient (plasma zinc <70 g/dL), of which 33.8 % had levels of plasma zinc below 60 g/dL. A significantly higher risk of morbidity was prevalent among the subjects with lower plasma zinc compared to those with higher levels of plasma zinc.

Morbidity Preschool; Children Peri-urban; Usha Dhingra; Girish Hiremath; Venugopal P. Menon; Pratibha Dhingra; Archana Sarkar; Sunil Sazawal

327

REVIEW Zinc in innate and adaptive tumor immunity Open Access

  CiteSeer

Summary: Zinc is important. It is the second most abundant trace metal with 2-4 grams in humans. It is an essential trace element, critical for cell growth, development and differentiation, DNA synthesis, RNA transcription, cell division, and cell activation. Zinc deficiency has adverse consequences during embryogenesis and early childhood development, particularly on immune functioning. It is essential in members of all enzyme classes, including over 300 signaling molecules and transcription factors. Free zinc in immune and tumor cells is regulated by 14 distinct zinc importers (ZIP) and transporters (ZNT1-8). Zinc depletion induces cell death via apoptosis (or necrosis if apoptotic pathways are blocked) while sufficient zinc levels allows maintenance of autophagy. Cancer cells have upregulated zinc importers, and frequently increased zinc levels, which allow them to survive. Based on this novel synthesis, approaches which locally regulate zinc levels to promote survival of immune cells and/or induce tumor apoptosis are in order. Finding a potent role for zinc in the regulation of autophagic PCD establishes zinc deprivation as a universal cell death signal, regardless of which route of degradationapoptotic or autophagic is chosen by cells.

Erica John; Thomas C Laskow; William J Buchser; Bruce R Pitt; Per H Basse; Lisa H Butterfield; Pawel Kalinski; Michael T Lotze; Andreas Helmersson; Sara Von Arnold; Peter V

328

Defect-induced magnetism and transport phenomena in epitaxial oxides

  University of Cambridge - Dspace

Summary: that the transition metal dopants (i.e. Mn) have no influence on the ferromagnetic nature of the zinc oxide, but that localised magnetic moments on intrinsic defects are in fact responsible for the ferromagnetic behaviour. A relation between strain (related to defect...

Schoofs, Frank
2012-07-03

329

Nanoparticle growth Controlled Growth of Platinum Nanoparticles on Strontium

  Chemistry Websites

Summary: Nanoparticle growth Controlled Growth of Platinum Nanoparticles on Strontium Titanate Nanocubes, dispersion, and chemical state of the Pt nanoparticles are controlled by the number of ALD growth cycles and Engineering Northwestern University Evanston, IL 60208-3108 (USA) E-mail: bedzyk@northwestern.edu Dr. J. W

Poeppelmeier, Kenneth R.

330

Nanoparticles for Targeted Drug Delivery

  MIT - DSpace

Summary: Nanoparticles were synthesized and modified for target drug delivery. The research involved the aqueous synthesis of near infrared (NIR) sensitive Au-Au2S nanoparticles. An anti-cancer drug (cis-platin) ...

Chow, Gan-Moog

331

Electron Photoemission in Plasmonic Nanoparticle Arrays: Analysis of Collective Resonances and Embedding Effects

  CERN Preprints

Summary: We theoretically study the characteristics of photoelectron emission in plasmonic nanoparticle arrays. Nanoparticles are partially embedded in a semiconductor, forming Schottky barriers at metal/semiconductor interfaces through which photoelectrons can tunnel from the nanoparticle into the semiconductor; photodetection in the infrared range, where photon energies are below the semiconductor band gap (insufficient for band-to-band absorption in semiconductor), is therefore possible. The nanoparticles are arranged in a sparse rectangular lattice so that the wavelength of the lattice-induced Rayleigh anomalies can overlap the wavelength of the localized surface plasmon resonance of the individual particles, bringing about collective effects from the nanoparticle array. Using full-wave numerical simulations, we analyze the effects of lattice constant, embedding depth, and refractive index step between the semiconductor layer and an adjacent transparent conductive oxide layer. We show that the presence of refracti...

Zhukovsky, Sergei V; Uskov, Alexander V; Protsenko, Igor E; Lavrinenko, Andrei V
2013-01-01

332

Application of Nanoparticles in Waste Water Treatment 1

  CiteSeer

Summary: Abstract: In the area of water purification, nanotechnology offers the possibility of an efficient removal of pollutants and germs. Today nanoparticles, nanomembrane and nanopowder used for detection and removal of chemical and biological substances include metals (e.g. Cadmium, copper, lead, mercury, nickel, zinc), nutrients (e.g. Phosphate, ammonia, nitrate and nitrite), cyanide, organics, algae (e.g. cyanobacterial toxins) viruses, bacteria, parasites and antibiotics. Basically four classes of nanoscale materials that are being evaluated as functional materials for water purification e.g. metal-containing nanoparticles, carbonaceous nanomaterials, zeolites and dendrimers. Carbon nanotubes and nanofibers also show some positive result. Nanomaterials reveal good result than other techniques used in water treatment because of its high surface area (surface/volume ratio). It is suggested that these may be used in future at large scale water purification. It is also found that the coliform bacteria treated with ultrasonic irradiation for short time period before Agnanoparticle treatment at low concentration, enhanced antibacterial effect. In future, combination of both may be the best option for treatment of waste water. Key words: Nanoparticle dendrites zeolite ceramics nanosilver nanorod nanofiber synergic effect minium inhibitory concentration

Dhermendra K. Tiwari; J. Behari; Prasenjit Sen

333

Magnetic properties and microstructural observations of oxide coated FeCo nanocrystals before and after compaction

  Materials Science Websites

Summary: of free standing nanocrystalline particles through a plasma arc or plasma torch synthesis. In both cases of oxide coated FeCo nanoparticles in a rf plasma torch reactor and their ac and dc magnetic properties of graphite- coated FeCo nanoparticles by plasma torch synthesis2,3 start- ing with a mixture of FeCo metal

McHenry, Michael E.

334

Structural and magnetic characterization of norbornenedeuterated norbornene dicarboxylic acid diblock copolymers doped with iron oxide

  Materials Science Websites

Summary: -ray photoelectron spectroscopy (XPS), small angle neutron scattering (SANS) and superconducting quantum interference and peak positions of the small-angle neutron scattering profiles of polymers after metal doping were; Iron oxide nanoparticles; Neutron scattering 1. Introduction Magnetic nanoparticles are a subject

Rubloff, Gary W.

335

6, 70517073, 2006 Nanoparticle phase

  Physics Websites

Summary: ACPD 6, 70517073, 2006 Nanoparticle phase transitions G. Biskos et al. Title Page Abstract Discussions Prompt deliquescence and efflorescence of aerosol nanoparticles G. Biskos 1 , D. Paulsen 1 , L. M Nanoparticle phase transitions G. Biskos et al. Title Page Abstract Introduction Conclusions References Tables

Paris-Sud XI, Universit de

336

Effects of Dye Loading Conditions on the Energy Conversion Efficiency of ZnO and TiO2 Dye-Sensitized Solar Cells

  Materials Science Websites

Summary: light conversion efficiency of zinc oxide (ZnO) film electrodes in dye-sensitized solar cells dye concentration, where the nanoparticle structure was not affected. Introduction Zinc oxide (Zn deposition (MOCVD) from zinc acetylacetonate hydrate vapor and oxygen gas. They also used a seeding method

Cao, Guozhong

337

Histidine Protects Against Zinc and Nickel Toxicity in Caenorhabditis elegans

  CiteSeer

Summary: Zinc is an essential trace element involved in a wide range of biological processes and human diseases. Zinc excess is deleterious, and animals require mechanisms to protect against zinc toxicity. To identify genes that modulate zinc tolerance, we performed a forward genetic screen for Caenorhabditis elegans mutants that were resistant to zinc toxicity. Here we demonstrate that mutations of the C. elegans histidine ammonia lyase (haly-1) gene promote zinc tolerance. C. elegans haly-1 encodes a protein that is homologous to vertebrate HAL, an enzyme that converts histidine to urocanic acid. haly-1 mutant animals displayed elevated levels of histidine, indicating that C. elegans HALY-1 protein is an enzyme involved in histidine catabolism. These results suggest the model that elevated histidine chelates zinc and thereby reduces zinc toxicity. Supporting this hypothesis, we demonstrated that dietary histidine promotes zinc tolerance. Nickel is another metal that binds histidine with high affinity. We demonstrated that haly-1 mutant animals are resistant to nickel toxicity and dietary histidine promotes nickel tolerance in wild-type animals. These studies identify a novel role for haly-1 and histidine in zinc

John T. Murphy; Janelle J. Bruinsma; Daniel L. Schneider; Sara Collier; James Guthrie; J. David Robertson; Elaine R. Mardis; Kerry Kornfeld
2011-01-01

338

1small 2011, X, No. XX, 15 2011 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim wileyonlinelibrary.com Nanoparticles

  Biology and Medicine Websites

Summary: Ox/Au, or iron oxide/gold core/shell nanoparticles, have been synthesized to utilize both the magnetic relaxivity of the FeOx and surface plasmon resonance properties of the spherical gold shell.[1517] These nanoparticles, or silica/gold core/shell The Multistrata Nanoparticle: an FeOx/Au Core/Shell Enveloped in a SilicaAu Shell


339

Regulation of the Saccharomyces cerevisiae CKI1-encoded Choline Kinase by Zinc Depletion*

  Chemistry Websites

Summary: Regulation of the Saccharomyces cerevisiae CKI1-encoded Choline Kinase by Zinc Depletion* Received that CKI1 expression was regulated by intracellular lev- els of the essential mineral zinc. Zinc depletion by the zinc-sensing and zinc-inducible transcriptional activator Zap1p. A purified Zap1p probe inter- acted

Chen, Kuang-Yu

340

Identification of Functional Surfaces of the Zinc Binding Domains of Intracellular Receptors

  Biotechnology Websites

Summary: Identification of Functional Surfaces of the Zinc Binding Domains of Intracellular Receptors. To gain insights on the sur- faces that determine this assembly in the zinc binding domains from zinc ions (zinc ®nger type II). These IR zinc bind- ing domains (ZBDs) can by themselves dimerize

Lichtarge, Olivier

341

Biochemical and Molecular Roles of Nutrients Metallothionein Knockout and Transgenic Mice Exhibit Altered Intestinal Processing of Zinc with Uniform Zinc-Dependent Zinc Transporter-1 Expression 1,2

  CiteSeer

Summary: ABSTRACT A role for metallothionein in intestinal zinc absorption has been the subject of considerable debate. If metallothionein affects zinc absorption, then those factors that induce metallothionein synthesis (e.g., heavy metals, hormones) should alter zinc absorption and homeostasis. The present studies used metallothionein transgenic mice (overexpressing) and metallothionein knockout mice (no expression of metallothionein-1 or metallothionein-2) to examine directly the effects of metallothionein on zinc absorption, independent of secondary effects that could be caused by metallothionein inducers. Zinc absorption was examined by administering a single oral zinc dose (0.5 mmol/kg) by feeding tube to metallothionein transgenic and metallothionein knockout mice and measuring the serum zinc concentration. Two hours after the dose, the serum zinc concentration was 2.3 times higher in metallothionein knockout mice than in their control strain. Conversely, the concentration was elevated only one third as much in the metallothionein transgenic mice as in their controls after the zinc dose. We found that the serum zinc concentration was inversely related to the level of metallothionein protein. The intestinal zinc content was higher in the metallothionein knockout mice, however, suggesting that metallothionein did not reduce zinc absorption by simply sequestering zinc in the mucosa. The expression of the zinc transporter ZnT-1 was directly related to the serum zinc level and was independent of the level of metallothionein. These results further support metallothionein as an important component for reducing the efficiency of zinc absorption

Steven R. Davis; Robert J. Mcmahon; Robert J. Cousins

342

Superbackscattering Nanoparticle Dimers

  CERN Preprints

Summary: The theory and design of superbackscattering nanoparticle dimers are presented. We analytically derive the optimal configurations and the upper bound of their backscattering cross-sections. In particular, it is demonstrated that electrically small nanoparticle dimers can enhance the backscattering by a factor of 6.25 with respect to single dipolar particles. We demonstrate that optimal designs approaching this theoretical limit can be found by using a simple circuit model. The study of practical implementations based on plasmonic and high-permittivity particles reveal that fourfold enhancement factors might be attainable even with realistic losses.

Liberal, Iigo; Gonzalo, Ramn; Ziolkoski, Richard W
2015-01-01

343

Nanostructural Effect of AlPO4-Nanoparticle Coating on the Cycle-Life Performance in LiCoO2 Thin Films

  Physics Websites

Summary: modification using various oxides and phosphates has been proposed.6-11 The surface modification effectively To synthesize the amorphous AlPO4 nanoparticles, aluminum ni- trate 0.1 M Al NO3 3·9H2O and ammonium and the solution became transparent. After preparing the solution, tridymite nanoparticles were obtained after

Park, Byungwoo

344

Polish Academy of Sciences Review Zinc and depression. An update

  CiteSeer

Summary: Unsatisfactory clinical efficacy and a variety of adverse effects of current antidepressant drugs have incited search for better therapy. Zinc, an antagonist of the glutamate/N-methyl-D-aspartate (NMDA) receptor, exhibits antidepressant-like activity in rodent tests/models of depression. Similarly to antidepressants, zinc induces brain derived neurotrophic factor (BDNF) gene expression and increases level of synaptic pool of zinc in the hippocampus. Clinical observations demonstrated serum hypozincemia in depression, which was normalized by effective antidepressant treatment. Moreover, our preliminary clinical study demonstrated the benefit of zinc supplementation in antidepressant therapy. All the data indicate the important role of zinc homeostasis in psychopathology and therapy of depression and potential clinical antidepressant activity of this ion. Key words: zinc, depression, antidepressants, NMDA, BDNF

Gabriel Nowak; Bernadeta Szewczyk; Andrzej Pilc
2005-01-01

345

LE JOURNAL DE PHYSIQUE RECHERCHES SUR LE SPECTRE DU ZINC

  Physics Websites

Summary: LE JOURNAL DE PHYSIQUE ET LE RADIUM RECHERCHES SUR LE SPECTRE DU ZINC Par MM. L?ON et EUG?NE BLOCH. Sommaire. 2014 Nous avons étudié comparativement le spectre d'étincelle du zinc dans l'air, le spectre d pas d'obtenir le spectre du zinc avec tout son développement par suite de la présence d'un fond

Paris-Sud XI, Université de

346

Fluorescent chemosensors for exploring zinc metalloneurochemistry and detecting mercury in aqueous solution

  MIT - DSpace

Summary: Chapter 1. An Introduction to Zinc Metalloneurochemistry and Zinc Detection in Biology. This chapter presents an overview of zinc neurophysiology and pathology, which provides motivation for the design of new tools and ...

Nolan, Elizabeth M. (Elizabeth Marie), 1978-
2006-01-01

347

Spectroscopic Properties of a Self-Assembled Zinc Porphyrin Tetramer II. Time-Resolved Fluorescence Spectroscopy

  Biology and Medicine Websites

Summary: Spectroscopic Properties of a Self-Assembled Zinc Porphyrin Tetramer II. Time-Resolved Fluorescence of a functionalized zinc tetraphenylporphyrin (ZnTPP) derivative, zinc mono(4-pyridyl)triphenylporphyrin (Zn

van Stokkum, Ivo

348

The Zinc Metalloregulatory Protein Synechococcus PCC7942 SmtB Binds a Single Zinc Ion per Monomer with High Affinity in a Tetrahedral Coordination Geometry

  Biotechnology Websites

Summary: The Zinc Metalloregulatory Protein Synechococcus PCC7942 SmtB Binds a Single Zinc Ion per Monomer PCC7942 SmtB is a zinc-responsive transcriptional repressor and a member of the ArsR superfamily to tightly regulate the free concentration of beneficial metal ions such as zinc, copper, and iron, while

Scott, Robert A.

349

Commercial Pecans: Controlling Rosette, Diseases and Zinc Deficiency

  Texas A&M University - TxSpace

Summary: Pecan losses from diseases and insufficient zinc nutrition can be prevented by following effective grove management practices. Descriptions of diseases and recommendations for controls are included....

Lee, Thomas A.; Krausz, Joseph P.
2006-04-13

350

Nanoparticles Flat Precipitates

  Chemistry Websites

Summary: superconductors. This in turn increases the superconducting current density (Jc), the maximum current density20 nm Nanorods Nanoparticles Flat Precipitates 10 nm To improve the performance of superconducting materials in high magnetic fields, non-superconducting defects of nanometer scale have to be introduced

Weston, Ken

351

PROPRITS LECTRIQUES ET OPTIQUES DE QUELQUES SEMI-CONDUCTEURS : OXYDE DE ZINC 2014 SULFURE DE ZINC 2014 SLNIUM

  Physics Websites

Summary: 806 PROPRI?T?S ?LECTRIQUES ET OPTIQUES DE QUELQUES SEMI-CONDUCTEURS : OXYDE DE ZINC 2014 SULFURE DE ZINC 2014 S?L?NIUM Par M. R. FREYMANN, en collaboration avec M. Y. BALCOU, Mlle M.-L. BLANCHARD, M. H. - Relations entre diverses propriétés phy- siques et les trois aspects du problème de l'oxyde de zinc. -- Le

Paris-Sud XI, Université de

352

Inkjet printed electronics using copper nanoparticle ink

  University of California eScholarship Repository

Summary: suspension of gold and silver nanoparticles drew attentionconductive ink using silver nanoparticles was developed by Jsilver are signi?cantly more expensive than copper. Therefore, a conductive ink using copper nanoparticles

Kang, Jin Sung; Kim, Hak Sung; Ryu, Jongeun; Thomas Hahn, H.; Jang, Seonhee; Joung, Jae Woo
2010-01-01

353

Evaluation of monolayer protected metal nanoparticle technology

  MIT - DSpace

Summary: Self assembling nanostructured nanoparticles represent a new class of synthesized materials with unique functionality. Such monolayer protected metal nanoparticles are capable of resisting protein adsorption, and if utilized ...

Wu, Diana J
2005-01-01

354

Plasmon Hybridization in Nanoparticle Dimers

  CiteSeer

Summary: We apply the recently developed plasmon hybridization method to nanoparticle dimers, providing a simple and intuitive description of how the energy and excitation cross sections of dimer plasmons depend on nanoparticle separation. We show that the dimer plasmons can be viewed as bonding and antibonding combinations, i.e., hybridization of the individual nanoparticle plasmons. The calculated plasmon energies are compared with results from FDTD simulations.

P. Nordlander; C. Oubre; E. Prodan; K. Li; M. I. Stockman
2004-01-01

355

Removal of Hydrogen Sulfide in Terms of Scrubbing Techniques using Silver Nano-Particles

  CiteSeer

Summary: AbstractSilver nano-particles have been used for antibacterial purpose and it is also believed to have removal of odorous compounds, oxidation capacity as a metal catalyst. In this study, silver nano-particles in nano sizes (5-30 nm) were prepared on the surface of NaHCO3, the supporting material, using a sputtering method that provided high silver content and minimized conglomerating problems observed in the common AgNO 3 photo-deposition method. The silver nano-particles were dispersed by dissolving Ag-NaHCO3 into water, and the dispersed silver nano-particles in the aqueous phase were applied to remove inorganic odor compounds, H2S, in a scrubbing reactor. Hydrogen sulfide in the gas phase was rapidly removed by the silver nano-particles, and the concentration of sulfate (SO 4 2-) ion increased with time due to the oxidation reaction by silver as a catalyst. Consequently, the experimental results demonstrated that the silver nano-particles in the aqueous solution can be successfully applied to remove odorous compounds without adding additional energy sources and producing any harmful byproducts


356

Interactions Between Cations and Nanoparticulate Layered Mn Oxides --A X-ray Atomic Pair Distribution Functions (PDF) Analysis

  Environmental Management and Restoration Websites

Summary: Interactions Between Cations and Nanoparticulate Layered Mn Oxides -- A X-ray Atomic Pair compensation. Surface sorption has been shown to be able to affect nanoparticle bulk structure, such as H2O unknown whether sorbed cations can also alter the crystal structure of MnO2 nanoparticles. Figure 4

Sparks, Donald L.

357

Received 22 Apr 2014 | Accepted 26 Aug 2014 | Published 3 Oct 2014 Dry-air-stable lithium silicidelithium oxide

  Materials Science Websites

Summary: ARTICLE Received 22 Apr 2014 | Accepted 26 Aug 2014 | Published 3 Oct 2014 Dry-air-stable lithium silicidelithium oxide coreshell nanoparticles as high-capacity prelithiation reagents Jie Zhao1, Zhendashell nanoparticles enable the practical implementation of high-performance electrode materials in lithium

Cui, Yi

358

Glutamine and zinc methionine supplementation to dairy calves

  Texas A&M University - TxSpace

Summary: Glutamine and zinc play an important role in immune functions of animals. The objective of this research was to determine the effects of L-glutamine or zinc methionine supplementation on 1) plasma concentrations of minerals in dairy calves, and 2...

Simon, Robin Renee
1999-01-01

359

doi:10.1155/2012/190309 Research Article Rising Intracellular Zinc by Membrane Depolarization and

  CiteSeer

Summary: Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Zinc (Zn 2+) appears to be intimately involved in insulin metabolism since insulin secretion is correlated with zinc secretion in response to glucose stimulation, but little is known about the regulation of zinc homeostasis in pancreatic beta-cells. This study set out to identify the intracellular zinc transient by imaging free cytosolic zinc in HIT-T15 beta-cells with fluorescent zinc indicators. We observed that membrane depolarization by KCl (3060 mM) was able to induce a rapid increase in cytosolic concentration of zinc. Multiple zinc transients of similar magnitude were elicited during repeated stimulations. The amplitude of zinc responses was not affected by the removal of extracellular calcium or zinc. However, the half-time of the rising slope was significantly slower after removing extracellular zinc with zinc chelator CaEDTA, suggesting that extracellular zinc affect the initial rising phase of zinc response. Glucose (10 mM) induced substantial and progressive increases in intracellular zinc concentration in a similar way as KCl, with variation in the onset and the duration of zinc mobilization. It is known that the depolarization of beta-cell membrane is coupled with the secretion of insulin. Rising intracellular zinc concentration may act as a critical signaling factor in insulin metabolism of pancreatic beta-cells. 1.

Glucose Insulin-secreting; Clonal Hit-t; Beta Cells; Kira G. Slepchenko; Yang V. Li

360

Reflection of nanoparticles

  Nonlinear Sciences (arXiv)

Summary: This work is devoted to molecular dynamics modeling of collision of nanoparticle having a small number of degrees of freedom with a structureless plain. The new regularities are established that determine properties of such particles. Generalized collision law is obtained where particle properties are determined by two coefficient, on of which corresponds to restitution coefficient. The discovered regularity predicts the existence of anomalous mode of particle reflection from a massive plain. In this mode, velocity of nanoparticle after reflection from a plain can exceed the initial one. The criterion of realization of such mode is obtained. Anomalous collision mode was observed during numerical modeling. Physical mechanism are discussed of phenomena that are observed during numerical experiments.

M. A. Ratner; A. V. Tur; V. V. Yanovsky
2013-12-18

361

Coating thickness and coverage effects on the forces between silica nanoparticles in water

  Condensed Matter (arXiv)

Summary: The structure and interactions of coated silica nanoparticles have been studied in water using molecular dynamics simulations. For 5 nm diameter amorphous silica nanoparticles we studied the effects of varying the chain length and grafting density of polyethylene oxide (PEO) on the nanoparticle coating's shape and on nanoparticle-nanoparticle effective forces. For short ligands of length $n=6$ and $n=20$ repeat units, the coatings are radially symmetric while for longer chains ($n=100$) the coatings are highly anisotropic. This anisotropy appears to be governed primarily by chain length, with coverage playing a secondary role. For the largest chain lengths considered, the strongly anisotropic shape makes fitting to a simple radial force model impossible. For shorter ligands, where the coatings are isotropic, we found that the force between pairs of nanoparticles is purely repulsive and can be fit to the form $(R/2r_\\text{core}-1)^{-b}$ where $R$ is the separation between the center of the nanoparticles, $r_\\text{core}$ is the radius of the silica core, and $b$ is measured to be between 2.3 and 4.1.

K. Michael Salerno; Ahmed E. Ismail; J. Matthew D. Lane; Gary S. Grest
2014-05-20

362

Use of Superparamagnetic Nanoparticle/Block Copolymer Electrostatic Complexes as Contrast Agents in Magnetic Resonance Imaging

  Condensed Matter (arXiv)

Summary: During the past years we have investigated the complexation between nanocolloids and oppositely charged polymers. The nanocolloids examined were ionic surfactant micelles and inorganic oxide nanoparticles. For the polymers, we used homopolyelectrolytes and block copolymers with linear and comb architectures. In general, the attractive interactions between oppositely charged species are strong and as such, the simple mixing of solutions containing dispersed constituents yield to a precipitation, or to a phase separation. We have developed means to control the electrostatically-driven attractions and to preserve the stability of the mixed solution. With these approaches, we designed novel core-shell nanostructures, e.g. as those obtained with polymers and iron oxide superparamagnetic nanoparticles. In this presentation, we show that electrostatic complexation can be used to tailor new functionalized nanoparticles and we provide examples related to biomedical applications in the domain of contrast agents for Magnetic Resonance Imaging.

Jean-Francois Berret; Regis Cartier
2007-01-26

363

This paper is originally published with the following reference : Nanoscale. 2014 Jun 7;6(11):6102-14. doi: 10.1039/c4nr00319e

  Computer Technologies and Information Sciences Websites

Summary: ;6(11):6102-14. doi: 10.1039/c4nr00319e Analysis of cellular responses of macrophages to zinc ions and zinc oxide martyrs, F-38054 Grenoble Cedex 9, France #12;2 thierry.rabilloud@cea.fr ABSTRACT Two different zinc oxide nanoparticles, as well as zinc ion, are used to study the cellular responses of the RAW264 macrophage cell line

Boyer, Edmond

364

Plasmon Induced Photovoltage and Charge Separation in Citrate-Stabilized Gold Nanoparticles

  Chemistry Websites

Summary: -stabilized Au nanocrystals on an indium tin oxide (ITO) transparent electrode following optical excitation 14, 2010 The photoelectrochemistry of citrate-stabilized gold nanoparticles on an ITO electrode-stabilized Ag particles adsorbed on an ITO electrode at excitation light intensiti


365

Formation, thermal stability, and surface composition of size-selected AuFe nanoparticles

  Engineering Websites

Summary: of bimetallic alloy nanostructures differ strongly from those of their monome- tallic counterparts.1­4 In the field of heterogeneous catalysis, oxide-supported bimetallic nanoparticles are known to ex- hibit in situ by O2-plasma exposure 4.5 10-5 mbar, 80 min . Complete removal of the organic ligands

Kik, Pieter

366

In-Situ Grown Erbium-Doped Dielectric Nanoparticles in Silica-Based Transparent Optical Fibers

  CERN Preprints

Summary: An efficient method to fabricate transparent glass ceramic fibers containing in-situ grown Er3+-doped oxide nanoparticles is presented. Characterization of the drawn fibers exhibits low loss (0.4 dB/m) and broadened Er3+ emission spectrum. This attractive method offers new scopes for fiber amplifiers.

Dussardier, Bernard; Mauroy, Valrie; Ude, Michle; Trzesien, Stanislaw; Mady, Franck; Benabdesselam, Mourad; Monnom, Grard
2011-01-01

367

Effect of surfactant concentration on the size of coated ferromagnetic nanoparticles

  Physics Websites

Summary: ; Magnetic properties and measurements; Nanostructures 1. Introduction Nowadays, synthesis and study nanoparticles is controlled by the surfactant concentration in the coating solution. Magnetization as a function and elemental analysis. q 1999 Elsevier Science S.A. All rights reserved. Keywords: Coatings; Iron oxide

Prozorov, Ruslan

368

Supporting Information for: Micellar Hybrid Nanoparticles for Simultaneous Magneto-Fluorescent Imaging and

  Biotechnology Websites

Summary: , CA, USA) in chloroform (2 mg/mL), and 100 µL of oleic acid-coated magnetic iron oxide nanoparticles of the chloroform, the dried film was hydrated by adding 1 mL water at 75 o C and the synthesis vessel was placed on a magnetic column (Miltenyi Biotec, Bergisch Gladbach, Germany) and rinsing with phosphate buffered saline

Bhatia, Sangeeta

369

Abstract of research activity: Main research activity: Incorporation of catalytic nanoparticles in mesoporous

  Chemistry Websites

Summary: in the electrode pores. SEM cross section micrographs for particles of: Pd (A), Au (B) and Au-Pd alloy (C in mesoporous substrates and their application as electrodes in electrochemical energy and water treatment devices. Keywords: metal and metal oxide nanoparticles, electrocatalysis, porous electrodes, fuel cells

Vardi, Amichay

370

Chin. Phys. B Vol. 20, No. 11 (2011) 113301 Highly dispersed Pd nanoparticles on chemically

  Materials Science Websites

Summary: Chin. Phys. B Vol. 20, No. 11 (2011) 113301 Highly dispersed Pd nanoparticles on chemically electrode material based on chemically modified graphene (CMG) with aminophenyl groups is covalently of the Pd/CMG composite towards formic acid oxidation are found to be higher than those of reduced graphene

Gao, Hongjun
2011-01-01

371

PLGAlecithinPEG coreshell nanoparticles for controlled drug delivery Juliana M. Chan a

  Materials Science Websites

Summary: drug release Drug delivery Liposome Nanoparticle Polyethylene oxide Self-assembly a b s t r a c) a poly(D,L-lactide-co-glycolide) hydrophobic core, (ii) a soybean lecithin mono- layer, and (iii) a poly(ethylene conditions, and also be coated with inert and biocompatible polymers such as polyethylene glycol (PEG

Zhang, Liangfang

372

CoFe, Fe and Co Nanoparticles Displacement with Cu Ions Zhanhu Guoa,*

  Materials Science Websites

Summary: with concentrated sulfuric acid.9 The annealing process of the SB3-12 stabilized FeCo nanoparticles was carried out is the prevention of the facile oxidation that occurs in ambient environments and acidic solutions. One conventional surrounding FeCo NPs was formed by displacement between NPs and acidic aqueous copper-citrate electrolyte

Guo, John Zhanhu

373

Synthesis of TiO2 nanoparticles by premixed stagnation swirl flames

  Engineering Websites

Summary: . Introduction Ultrafine titanium oxides (e.g., TiO2) are expected to play important roles in addressing various on photocatalytic, photovoltaic, and water-splitting devices [1­3]. TiO2 properties are strongly influenced by size], the efficiency of TiO2 nanoparticles as photo- catalysts becomes limited as only a small percent- age

Tse, Stephen D.

374

Preparation of supported gold nanoparticles by a modified incipient wetness impregnation method

  Computer Technologies and Information Sciences Websites

Summary: 1 Preparation of supported gold nanoparticles by a modified incipient wetness impregnation method procedure of impregnation of oxide supports with chloroauric acid, which is well-known to lead to large gold particles, is followed by a step of washing with ammonia, small gold particles (3-4 nm) can be obtained

Boyer, Edmond

375

Further Evidences for Spin Glass like behavior in NiO nanoparticles

  Condensed Matter (arXiv)

Summary: Nickel oxide nanoparticles are prepared by a sol gel method and characterized by x-ray diffraction and transmission electron microscope. Here we present measurements on temperature and field dependence of magnetization and time dependence of thermoremanent magnetization. Our conclusion based on these measurements is that the system shows spin glass like behavior.

S. D. Tiwari; K. P. Rajeev
2004-08-26

376

Supporting Information Au nanoparticle synthesis

  Materials Science Websites

Summary: and power dissipation The AFM tip perturbs the Au nanoparticle's electrochemical potential by Au c C dz dz. This ac perturbation induces tunneling charge dq = ef'(0)d = 0.38 e, which corresponds to a current I = dq. Perturbation on the CNT Au nanoparticles linked to a CNT can potentially perturb the CNT by its static charges

McEuen, Paul L.

377

Zinc Detection in Serum by Anodic Stripping Voltammetry on Microfabricated Bismuth Electrodes

  Biology and Medicine Websites

Summary: Zinc Detection in Serum by Anodic Stripping Voltammetry on Microfabricated Bismuth Electrodes.papautsky@uc.edu Received: September 28, 2012 Accepted: November 1, 2012 Published online: January 22, 2013 Abstract Zinc electrochemical cell, Zinc in serum DOI: 10.1002/elan.201200530 1 Introduction Zinc (Zn) is an essential trace

Papautsky, Ian

378

Build a Zinc Finger Read the enclosed Molecule of the Month Article.

  Physics Websites

Summary: Build a Zinc Finger Procedure: Read the enclosed Molecule of the Month Article. 1. Based acid associated with each Zinc Binding site. 4. How many Zincs are involved in your model? __________ how many amino acids are associated with each Zinc Finger? _______ Now start folding. Using the 3D

Ohta, Shigemi

379

The Modelling Language Zinc Maria Garcia de la Banda, Kim Marriott, Reza Rafeh, and Mark Wallace

  Computer Technologies and Information Sciences Websites

Summary: The Modelling Language Zinc Maria Garcia de la Banda, Kim Marriott, Reza Rafeh, and Mark Wallace}@mail.csse.monash.edu.au Abstract. We describe the Zinc modelling language. Zinc provides set constraints, user defined types, constrained types, and polymorphic pred- icates and functions. The last allows Zinc to be readily extended

Garcia de la Banda, Maria

380

Protein Delivery Using Cys2-His2 Zinc-Finger Domains Thomas Gaj,,

  Biology and Medicine Websites

Summary: Protein Delivery Using Cys2-His2 Zinc-Finger Domains Thomas Gaj,, * Jia Liu, Kimberly E. Anderson previously reported that zinc-finger nuclease proteins are intrinsically cell-permeable due to the cell-penetrating activity of the Cys2-His2 zinc-finger domain. Here, we demonstrate that genetically fused zinc- finger

Barbas III, Carlos F.

381

ZINC--2003 84.1 References that include a section mark () are found in the Internet

  Environmental Sciences and Ecology Websites

Summary: ZINC--2003 84.1 1 References that include a section mark (§) are found in the Internet References Cited section. ZINC By Jozef Plachy Domestic survey data and tables were prepared by Samir Hakim coordinator. In 2003, domestic zinc mine production, expressed in zinc content of ore, decreased by about 2


382

Zinc-dependent Interaction between Dishevelled and the Drosophila Wnt Antagonist Naked Cuticle*

  Biotechnology Websites

Summary: Zinc-dependent Interaction between Dishevelled and the Drosophila Wnt Antagonist Naked Cuticle of the chelating agent EDTA abolished the in vitro Nkd-Dsh interaction. Surprisingly zinc, but not calcium, was able to restore Nkd-Dsh binding, sug- gesting a zinc-mediated interaction. Calcium 45- and zinc 65

Quake, Stephen R.

383

MiniZinc with Functions Peter J. Stuckey1 and Guido Tack2

  Computer Technologies and Information Sciences Websites

Summary: MiniZinc with Functions Peter J. Stuckey1 and Guido Tack2 1 National ICT Australia (NICTA in Boolean contexts and not exploiting potential optimisations. This paper develops a translation from MiniZinc with user-defined functions to FlatZinc. The translation respects the relational semantics of MiniZinc

Stuckey, Peter J.

384

Zinc and mechanical prowess in the jaws of Nereis, a marine worm

  Materials Science Websites

Summary: Zinc and mechanical prowess in the jaws of Nereis, a marine worm Helga C. Lichtenegger* , Thomas been reported to contain high levels of zinc. Considerable quantities of zinc also occur in the jaws to unravel the role of zinc in Nereis limbata jaws, using a combination of position-resolved state

Lichtenegger, Helga C.

385

Synthesis and characterization of a zinc metalorganic framework with chiral nano-pores{

  Chemistry Websites

Summary: Synthesis and characterization of a zinc metal­organic framework with chiral nano-pores{ Lingjuan-pores. The zinc centers are linked together by carboxylate groups into trinuclear chains; the two terminal zinc bond distances and angles are given in the supplementary information. The zinc atoms are linked

Girolami, Gregory S.

386

A Scalable Cellular Logic Technology Using Zinc-Finger Proteins Chris Batten and Ronny Krashinsky

  Computer Technologies and Information Sciences Websites

Summary: A Scalable Cellular Logic Technology Using Zinc-Finger Proteins Chris Batten and Ronny Krashinsky with zinc-finger proteins acting as the unique repressor logic signals. A zinc-finger protein binds to DNA at a specific target site determined by the nucleotide sequence, and zinc-finger proteins can readily be engi


387

Nonsulfide zinc deposits in the SilesiaCracow district, Southern Poland

  Geosciences Websites

Summary: ARTICLE Nonsulfide zinc deposits in the Silesia­Cracow district, Southern Poland Vito Coppola in Poland has been one of the world's principal sources of zinc from nonsulfide zinc ore (Polish: galman. Keywords Silesia­Cracow Poland . Nonsulfide zinc . Paleoweathering . Smithsonite . Stable isotopes

Boni, Maria

388

Prediction of structures of zinc-binding proteins through explicit modeling of

  Biotechnology Websites

Summary: Prediction of structures of zinc-binding proteins through explicit modeling of metal coordination an essential role in stabilizing protein structures and contributing to protein function. Ions such as zinc of zinc-binding proteins given knowledge of the positions of zinc-coordinating residues in the amino acid

Baker, David

389

PAC-1 Activates Procaspase-3 in Vitro through Relief of Zinc-Mediated Inhibition

  Chemistry Websites

Summary: PAC-1 Activates Procaspase-3 in Vitro through Relief of Zinc-Mediated Inhibition Quinn P. Peterson1. Described herein is the mechanism by which PAC-1 activates procaspase-3 in vitro. We show that zinc inhibits zinc. PAC-1 and zinc form a tight complex with one another, with a dissociation constant

Hergenrother, Paul J.

390

Characterisation of non-sulphide zinc deposits using QEMSCAN Gavyn K. Rollinson a,

  Geosciences Websites

Summary: Characterisation of non-sulphide zinc deposits using QEMSCAN? Gavyn K. Rollinson a, , Jens C February 2011 Available online xxxx Keywords: Non-sulphide zinc Mineralogy QEMSCAN? a b s t r a c t Non-sulphide zinc deposits are important potential resources of zinc and other metals, which require accurate

Boni, Maria

391

DOI: 10.1002/adfm.200700139 StructurePropertyFunction Relationships in Nanoscale Oxide

  Mathematics Websites

Summary: DOI: 10.1002/adfm.200700139 StructurePropertyFunction Relationships in Nanoscale Oxide Sensors of alkylZnalkoxide precursors allows the prepara- tion of metal-oxide nanoparticles in the gas phase- tures are applied in CVS but nanoscale particles are still ob- tained, the idea was that this would

Nabben, Reinhard

392

Synthesis of Metallic Iridium Oxide Nanowires via Metal Organic Chemical Vapor Deposition Fengyan ZHANG

  Engineering Websites

Summary: Synthesis of Metallic Iridium Oxide Nanowires via Metal Organic Chemical Vapor Deposition Fengyan, U.S.A. (Received December 9, 2004; accepted February 3, 2005; published March 4, 2005) Iridium oxide) iridium (I) as the precursor on Si or SiO2 substrate with and without metal nanoparticles as catalysts

Wang, Deli

393

Hybrid Zinc Phthalocyanine/Zinc Oxide System for Photovoltaic De-vices: a DFT and TDDFPT Theoretical Investigation

  Physics Websites

Summary: whose major effect is the appearance of a new unoccupied electronic level, deriving from an intimate of Chemistry, Physics and Environment, University of Udine, via delle Scienze 208, 33100 Udine, and DEMOCRITOS

Giannozzi, Paolo

394

Bimetallic Cluster Provides a Higher Activity Electrocatalyst for Methanol Oxidation*

  Energy Storage, Conversion and Utilization Websites

Summary: cluster complex was found to provide smaller, more uniform bimetallic nanoparticle that exhibited higher, and approximately 250 mV lower at 400 A/g Pt. KEY WORDS: PtRu nanoclusters; catalyst; methanol; fuel cell oxidation is due to a lower energy barrier provided by a bifunctional mechanism in which water is activated

Weidner, John W.

395

Zinc Doping in Cosubstituted In2-2xSnxZnxO3-A. Ambrosini, S. Malo, and K. R. Poeppelmeier*

  Chemistry Websites

Summary: Transparent conducting oxides (TCOs) are widely used as transparent electrodes in a variety of techno- logical-type conductivity of the doped material decreases with zinc substitution. Zn-doped In1.6Sn0.2Zn0.2O3- was annealed in carrier concentration by up to 2 orders of magnitude from 1020 to 1018 carriers/cm3, the conductivity

Poeppelmeier, Kenneth R.

396

J. Mol. Biol. (1996) 260, 7084 A Zinc-binding Domain Involved in the Dimerization

  Biology and Medicine Websites

Summary: J. Mol. Biol. (1996) 260, 70­84 A Zinc-binding Domain Involved in the Dimerization of RAG1 Karla K Whitney contains a C3HC4 zinc-binding motif (zinc ring finger) that binds two zinc Avenue, P.O. Box 208114 ions. We have found that RAG1 contains additional zinc-binding motifs in the form of two separate C2H2


397

EFFECTS OF INFECTION ON PLASMA LEVELS OF COPPER AND ZINC IN EWES

  Physics Websites

Summary: EFFECTS OF INFECTION ON PLASMA LEVELS OF COPPER AND ZINC IN EWES M. LAMAND D. LEVIEUX Laboratoire'?TAT INFECTIEUX SUR LE CUIVRE ET LE ZINC PLASMATIQUES CHEZ LA BREBIS. ― Le cuivre et le zinc plasmatique de progressivement augmenté et le zinc a dimi- nué malgré une distribution journalière, per os, de 200 mg de zinc

Paris-Sud XI, Université de

398

Galactic Chemical Evolution: Hydrogen Through Zinc

  Astrophysics (arXiv)

Summary: Using the output from a grid of 60 Type II supernova models (Woosley \\& Weaver 1994) of varying mass (11 $\\ltaprx$ M/M\\sun $\\ltaprx$ 40) and metallicity (0, 10$^{-4}$, 0.01, 0.1, and 1 Z\\sol), the chemical evolution of 76 stable isotopes, from hydrogen to zinc, is calculated. The chemical evolution calculation employs a simple dynamical model for the Galaxy (infall with a 4 billion year $e$-folding time scale onto a exponential disk and 1/r$^2$ bulge), and standard evolution parameters, such as a Salpeter initial mass function and a quadratic Schmidt star formation rate. The theoretical results are compared in detail with observed stellar abundances in stars with metallicities in the range -3.0 $\\ltaprx$ [Fe/H] $\\ltaprx$ 0.0 dex. While our discussion focuses on the solar neighborhood where there are the most observations, the supernovae rates, an intrinsically Galactic quantity, are also discussed.

by F. X. Timmes; S. E. Woosley; Thomas A. Weaver
1994-11-01

399

INTERNATIONAL FROM NANOPARTICLES

  Engineering Websites

Summary: r a m PROGRAM 2013_Layout 1 28/06/2013 13:14 Page 1 #12;Fundamentals/Materials Genome Session FGM-5/Materials Genome Session FGM-4 Complex Oxides Session CO-2 Environmental Applications & Implications Session EAI-1

Texas at Arlington, University of

400

(Data in thousand metric tons of zinc content, unless otherwise noted) Domestic Production and Use: The value of zinc mined in 1996 was about $800 million. Essentially all came from

  Environmental Sciences and Ecology Websites

Summary: 190 ZINC (Data in thousand metric tons of zinc content, unless otherwise noted) Domestic Production and Use: The value of zinc mined in 1996 was about $800 million. Essentially all came from 22 mines smelters refined zinc metal of commercial grade in 1996. About 75% of slab zinc consumption was in Illinois


401

Original Article Status of zinc in pulmonary tuberculosis

  CiteSeer

Summary: Background: To study the status of zinc as a micronutrient in pulmonary tuberculosis, in our population, with the aim to see the effectiveness of therapy. Methodology: This prospective study includes 50 patients with pulmonary tuberculosis and 30 subjects as the control group. The patients were placed into three stages (1 to 3) on the basis of chest radiographic findings. Serum zinc levels were estimated before, during, and after completion of antitiberculosis therapy. Results: Statistically significant fall in serum zinc levels was seen with advanced age and disease, and the levels improved after initiation of antituberculosis therapy. Conclusion: Estimation of serum zinc levels is an important tool in diagnosis and monitoring of response to treatment in pulmonary tuberculosis, and even a booster of the immunological mechanisms if instituted during the course of treatment.

Hassan Ghulam; Syed Manzoor Kadri; Ahmad Manzoor; Qureshi Waseem; Syed Aatif; Ghulam Qadir Khan; Kak Manish

402

Automated determination of zinc and copper in plasma

  CiteSeer

Summary: The routine estimation of copper and zinc concentrations in plasma and serum is becoming a more commonly requested analysis for the management of several categories of patients. Those being maintained on total parenteral nutrition [- 1] are at

B. Sampson

403

Dispenser Printed Zinc Microbattery with an Ionic Liquid Gel Electrolyte

  University of California eScholarship Repository

Summary: concentration for the lithium and zinc ionic liquid electrolytelithium cations with respect to solute concentration in the ionic liquid electrolytelithium ion ionic liquid electrolytes as a function of solute concentration

Ho, Christine Chihfan
2010-01-01

404

Copper and Zinc Phytoremediation by Native Herbaceous and Grass Species

  Biology and Medicine Websites

Summary: Copper and Zinc Phytoremediation by Native Herbaceous and Grass Species Colonized on Remediated. of Geological Sciences #12;Phytoremediation Definition: The use of vascular plants to improve environmental contaminated soils Effective phytoremediation relies on hyperaccumulators Excluders show greater tolerance

Polly, David

405

Optical waveguides in SBN by zinc vapor diffusion

  Texas A&M University - TxSpace

Summary: OPTICAL WAVEGUIDES IN SBN BY ZINC VAPOR DIFFUSION A Thesis by Jeffrey Dale Quinn Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE May 1991... Major subject: Electrical Engineering OPTICAL WAVEGUIDES IN SBN BY ZINC VAPOR DIFFUSION A Thesis by Jeffrey Dale Quinn Approved as to style and content by: Ohannes Eknoyan ( Chair of Committ enry F. Taylor ( Member ) Edward S. . Fry ( Member...

Quinn, Jeffrey Dale
1991-01-01

406

Jayant Deshpande et al. Zinc in Human Nutrition And Health REVIEW ARTICLE ZINC: THE TRACE ELEMENT OF MAJOR IMPORTANCE IN HUMAN NUTRITION AND HEALTH

  CiteSeer

Summary: Zinc is an essential element whose significance to health is increasingly appreciated. In 1961 essentiality of zinc for humans was recognized. A systematic literature search was done to identify relevant studies investigating the role of zinc in human health. This review concerns the importance of zinc in health and the consequences of its deficiency. Zinc deficiency leads to complications of pregnancy and childbirth, low birth weight and poor growth in childhood, reduced immunocompetence, and increased infectious disease morbidity. Pregnant women with zinc deficiency are at risk of premature labour and miscarriages, inefficient labour and delivery, stillbirths, lower mental ability of the child, retarded foetal growth and low immunity of both mother and baby. Zinc can reduce the duration, severity and incidence of diarrhoea in children. Zinc deficiency was indicated as a risk factor for immune deficiency and susceptibility to infection in the elderly. Zinc is used in preventive trials and treatment of diarrhoea, pneumonia, common cold, respiratory infections and malaria. Sufficient zinc is essential in maintaining immune system function. Supplementation of zinc and with other micronutrients may be beneficial during periods of greatest vulnerability such as early childhood, pregnancy and elderly. Ensuring adequate levels of zinc intake should be a key component in efforts to reduce illness.

Jayant D Deshp; Mohini M Joshi; Purushottam A Giri

407

A Robust Microporous Zinc Porphyrin Framework Solid Dennis W. Smithenry, Scott R. Wilson, and Kenneth S. Suslick*

  Chemistry Websites

Summary: A Robust Microporous Zinc Porphyrin Framework Solid Dennis W. Smithenry, Scott R. Wilson. Mathews AVenue, Urbana, Illinois 61801 Received July 24, 2003 A robust microporous zinc crystal data has an interpenetrated three-dimensional framework of zinc trans

Suslick, Kenneth S.

408

Surface Functionalization of Monodisperse Magnetic Nanoparticles

  MIT - DSpace

Summary: We present a systematic methodology to functionalize magnetic nanoparticles through surface-initiated atom-transfer radical polymerization (ATRP). The magnetite nanoparticles are prepared according to the method proposed ...

Lattuada, Marco

409

Sweet plasmonics: Sucrose macrocrystals of metal nanoparticles

  Materials Science Websites

Summary: Sweet plasmonics: Sucrose macrocrystals of metal nanoparticles Talha Erdem1 , Zeliha Soran-Erdem1-Verlag Berlin Heidelberg 2014 KEYWORDS plasmonics, macrocrystals, metal nanoparticles, metal enhanced fluorescence, colloidal quantum dots ABSTRACT The realization of plasmonic structures generally necessitates

Demir, Hilmi Volkan

410

Nanoparticles for therapeutic and diagnostic applications

  University of California eScholarship Repository

Summary: biomarkers Motivation and background Gold nanoparticles havenanoparticles in the ATPS, but can also capture target biomarkersbiomarkers 94 Motivation and background ..94 Materials and Methods .97 Preparing Citrate-Capped Gold Nanoparticles .

Chiu, Yin To
2014-01-01

411

Applications of nanoparticles of gamma Fe2O3 for hyperthermia in E.coli by Nd:YAG laser

  CERN Preprints

Summary: The paper explores the use of nanoparticles of gamma Fe2O3 for hyperthermia treatment of living organisms by absorption of 1064 nm radiations from Nd:YAG laser. Escherichia coli cells have been used as the model system for demonstrating the effect wherein lysine is used as an interface between the cell walls and the nanoparticles. Scanning Electron Microscopic observations have, exclusively, proved that attachment of nanoparticles of iron oxide along with lysine alone is responsible for absorption of above radiations. The quantitative estimation has been provided by growth rate measurements and protein assessment of the cells. The nanoparticles of gamma Fe2O3 were synthesized by DC arc plasma assisted gas phase condensation.

Kundu, Srikanya; Kulkarni, S D; Pasricha, Renu; Das, A K; Kulkarni, G R; Bhoraskar, S V
2007-01-01

412

RESEARCH Open Access Role of metal oxide nanoparticles in

  Computer Technologies and Information Sciences Websites

Summary: and pro- ducing materials at the scale of the billionth meter; the nanometer. These nanomaterials (among for nanomaterials is already substantial, and will certainly become exponential in the next future

Boyer, Edmond

413

RESEARCH PAPER Effects of iron oxide nanoparticles on polyvinyl alcohol

  Materials Science Websites

Summary: nanocomposites thin film Zhanhu Guo Di Zhang Suying Wei Zhe Wang Amar B. Karki Yuehao Li Paul Bernazzani David. P. Young J. A. Gomes David L. Cocke Thomas C. Ho Received: 9 July 2009 / Accepted (Glisenti 1998; Ren et al. 2009; Rofer-Depoorter 1981; Xie et al. 2009; Zhang et al. 2009; Zheng et al. 2007

Guo, John Zhanhu

414

Cyclic Voltammetric Preparation of Palladium Nanoparticles for Ethanol Oxidation Reaction

  Materials Science Websites

Summary: saturated calomel electrode in an alkaline solution containing ethanol, a Pd particle modified GC electrode. Casella and Contursi13 immobilized Pd particles on a GC electrode by voltage cycling between 0.0 and -0.4 V versus saturated calomel electrode (SCE) in a solution containing 0.5 mM Na2PdCl6. PdO is normally

Guo, John Zhanhu

415

Planar oxide supported rhodium nanoparticles as model catalysts

  Chemistry Websites

Summary: by the Editorial Board August 21, 2010 (received for review June 8, 2010) C2H4COH2 reaction is investigated on Rh.5 nm. Polarization modulation infrared reflection absorption spectroscopy under CO and reaction (C2H4COH2) conditions indicate the presence of Rh carbonyl species (RhðCO?2, Rh(CO)H) on small Rh particles

Goodman, Wayne

416

Brief Communication Carbon nanotubes as nanoparticles collector

  Engineering Websites

Summary: Brief Communication Carbon nanotubes as nanoparticles collector Laksminarayana Rao, Naveen Krishna.coulombe@mcgill.ca) Received 10 July 2006; accepted in revised form 29 August 2006 Key words: carbon nanotubes, nanoparticles method for the collection of nanoparticles using carbon nanotubes (CNT) as collecting surfaces, by which


417

Short Communication Application of bare gold nanoparticles

  Biology and Medicine Websites

Summary: Short Communication Application of bare gold nanoparticles in open-tubular CEC separations of polyaromatic hydrocarbons and peptides In this study, bare gold nanoparticles (GNPs) immobilized in the sol capillary wall and improving their resolution. Keywords: CE / Gold nanoparticles / Peptides / Polyaromatic

Miksik, Ivan

418

Synthesis and Characterization of Bimagnetic Bricklike Nanoparticles

  Materials Science Websites

Summary: magnetic CoFe2O4 phase on FePt cubic nanoparticle seeds. The size of the soft phase could be controlled, the as-synthesized bricklike nanoparticles were annealed at elevated temperatures under a reductive in controlling the morphology of materials to produce desired nanostructures, for instance, nanoparticles

Liu, J. Ping

419

Ratiometric and intensity-based zinc sensors built on rhodol and rhodamine platforms

  MIT - DSpace

Summary: A xanthene-forming condensation reaction yields rhodol and rhodamine dyes carrying a zinc-binding ligand that includes the aniline-type nitrogen donor of the fluorophores. Upon zinc coordination in neutral aqueous solution, ...

Tomat, Elisa

420

Optical response of a silicon nanowire FET conjugated with zinc octaethylporphyrin molecules

  Materials Science Websites

Summary: #12;Optical response of a silicon nanowire FET conjugated with zinc octaethylporphyrin molecules DNW field-effect-transistor (FET) conjugated with Zn-OEP (Zinc octaethylporphyrin) molecules. 2. EXPERIMENT

Hwang, Sung Woo

421

The Zinc Finger Protein DIE-1 Is Required for Late Events during Epithelial Cell

  Environmental Sciences and Ecology Websites

Summary: The Zinc Finger Protein DIE-1 Is Required for Late Events during Epithelial Cell Rearrangement in C a necessary prerequisite for elongation. The die-1 gene encodes a C2H2 zinc finger protein containing four

Hardin, Jeff

422

Modeling Zinc and Sodium Chloride Migration in Vadose Zone Soils Beneath Stormwater Infiltration Devices

  Environmental Sciences and Ecology Websites

Summary: Modeling Zinc and Sodium Chloride Migration in Vadose Zone Soils Beneath Stormwater Infiltration influence on the movement of zinc, sodium, and chloride in the vadose zone beneath a typical infiltration

Clark, Shirley E.

423

pH dependence and compartmentalization of zinc transported across plasma membrane of rat cortical neurons

  Biology and Medicine Websites

Summary: pH dependence and compartmentalization of zinc transported across plasma membrane of rat corticalH dependence and compartmental- ization of zinc transported across plasma membrane of rat cortical neurons. Am


424

STRUCTURE LECTRONIQUE DES SURFACES (110) DES SEMICONDUCTEURS DE TYPE ZINC-BLENDE

  Physics Websites

Summary: 647 STRUCTURE ?LECTRONIQUE DES SURFACES (110) DES SEMICONDUCTEURS DE TYPE ZINC-BLENDE PAR UNE'ionicité de Phillips. Abstract. 2014 The electronic structure of the (110) surface of zinc-blende crystals

Paris-Sud XI, Université de

425

The Zinc Finger Protein Schnurri Acts as a Smad Partner in Mediating the Transcriptional

  Biology and Medicine Websites

Summary: The Zinc Finger Protein Schnurri Acts as a Smad Partner in Mediating the Transcriptional Response and regulate the transcription of Dpp-responsive genes. Genetic analysis has implicated Schnurri (Shn), a zinc

Warrior, Rahul

426

Pulsed Laser Deposition of Chromium-Doped Zinc Selenide Thin Films for Mid-Infrared Applications

  Physics Websites

Summary: 1 Pulsed Laser Deposition of Chromium-Doped Zinc Selenide Thin Films for Mid-Infrared Applications spectroscopic applications [1,2]. In this study we focus on chromium doped zinc selenide (Cr:ZnSe) semiconductor

Camata, Renato P.

427

Concentration and localization of zinc during seed development and germination in wheat

  Computer Technologies and Information Sciences Websites

Summary: Concentration and localization of zinc during seed development and germination in wheat Levent and infec- tions (Hotz and Brown, 2004; Cunnigham-Rundles et al., 2005). Zinc deficiency also induces DNA

Yanikoglu, Berrin

428

Erratum: Unexpected failure rates for modular assembly of engineered zinc fingers

  Biology and Medicine Websites

Summary: Erratum: Unexpected failure rates for modular assembly of engineered zinc fingers Cherie L Ramirez be associated with the third column (96 sites). The weblink for the Zinc Finger Consortium website was incorrect

Cai, Long

429

Zinc released from olfactory bulb glomeruli by patterned electrical stimulation of the olfactory nerve

  MIT - DSpace

Summary: Zinc is a trace element with a multitude of roles in biological systems including structural and cofactor functions for proteins. Although most zinc in the central nervous system (CNS) is protein bound, the CNS contains a ...

Blakemore, Laura J.

430

A zinc knuckle protein that negatively controls morning-specific growth in Arabidopsis thaliana

  Biology and Medicine Websites

Summary: A zinc knuckle protein that negatively controls morning-specific growth in Arabidopsis thaliana inbred families (HIFs), the gene underlying one QTL, LIGHT5, was identified as a tandem zinc knuckle/PLU3

Weigel, Detlef

431

Local, Regional, and Global Implications of Elemental Mercury in Metal (Copper, Silver, Gold, and Zinc) Ores

  Environmental Sciences and Ecology Websites

Summary: , and Zinc) Ores: Insights from Lake Superior Sediments W. Charles Kerfoot1,*, S. L. Harting1, J. Jeong1 and of worldwide occurrence in precious (gold, silver) and massive base metal (copper, zinc) ore deposits. INDEX


432

INTRODUCTION Members of the spalt (sal) gene family encode zinc-finger

  Biology and Medicine Websites

Summary: INTRODUCTION Members of the spalt (sal) gene family encode zinc-finger proteins that both control Members of the spalt (sal) gene family encode zinc-finger proteins that are putative tumor suppressors

Emmons, Scott

433

Calculation of binding free energies for non-zinc chelating pyrimidine dicarboxamide inhibitors with MMP-13

  Chemistry Websites

Summary: Calculation of binding free energies for non-zinc chelating pyrimidine dicarboxamide inhibitors is not chelation of the active site catalytic zinc ion.3 Despite minimal changes to the pyrimidine scaffold

Rizzo, Robert C.

434

Cadmium, copper and zinc in octopuses from Kerguelen Islands, Southern Indian Ocean

  Physics Websites

Summary: Cadmium, copper and zinc in octopuses from Kerguelen Islands, Southern Indian Ocean P. Bustamante1-en-Bois, France ABSTRACT: Concentrations of cadmium, copper and zinc were measured in 34 octopuses over a large

Paris-Sud XI, Université de

435

invertebrates and the interaction ofcadmium and zinc on the freshwater shrimp, Parotya tasmaniensis Riek. Aust.

  Environmental Sciences and Ecology Websites

Summary: invertebrates and the interaction ofcadmium and zinc on the freshwater shrimp, Parotya tasmaniensis invertebrate larvae in mercury, copper, and zinc solutions. Aust. J. Mar. Freshwater Res. 18:63-72. JUDITH S


436

Selective recognition of bacterial membranes by zinc(II)-coordination W. Matthew Leevy,ab

  Chemistry Websites

Summary: Selective recognition of bacterial membranes by zinc(II)-coordination complexes{ W. Matthew Leevy. Recently, we discovered that zinc dipicolylamine (Zn2+ ­DPA) complexes have a strong affinity for bilayer

Smith, Bradley D.

437

Zinc Finger Protein Designed to Target 2-Long Terminal Repeat Junctions Interferes

  Chemistry Websites

Summary: Zinc Finger Protein Designed to Target 2-Long Terminal Repeat Junctions Interferes with Human demonstrated that a designed zinc finger protein (ZFP) fused to green fluorescent protein (GFP) targets the 2

Barbas III, Carlos F.

438

Zinc Overload Enhances APP Cleavage and Ab Deposition in the Alzheimer Mouse Brain

  CiteSeer

Summary: Background: Abnormal zinc homeostasis is involved in b-amyloid (Ab) plaque formation and, therefore, the zinc load is a contributing factor in Alzheimers disease (AD). However, the involvement of zinc in amyloid precursor protein (APP) processing and Ab deposition has not been well established in AD animal models in vivo. Methodology/Principal Findings: In the present study, APP and presenilin 1 (PS1) double transgenic mice were treated with a high dose of zinc (20 mg/ml ZnSO4 in drinking water). This zinc treatment increased APP expression, enhanced amyloidogenic APP cleavage and Ab deposition, and impaired spatial learning and memory in the transgenic mice. We further examined the effects of zinc overload on APP processing in SHSY-5Y cells overexpressing human APPsw. The zinc enhancement of APP expression and cleavage was further confirmed in vitro. Conclusions/Significance: The present data indicate that excess zinc exposure could be a risk factor for AD pathological

Chun-yan Wang; Tao Wang; Wei Zheng; Bao-lu Zhao; Gorm Danscher; Yu-hua Chen
2010-01-01

439

Zinc Oral Solutions Guidelines for Programme Managers and Pharmaceutical Manufacturers TABLE OF CONTENTS

  CiteSeer

Summary: i WHO Library Cataloguing-in-Publication Data Production of zinc tablets and zinc oral solutions: guidelines for programme managers and pharmaceutical manufacturers. Produced by the World Health Organization [et al.].

unknown authors

440

Formation of Biomimetic Porous Calcium Phosphate Coatings on Surfaces of Polyethylene/Zinc Stearate Blends

  Materials Science Websites

Summary: Formation of Biomimetic Porous Calcium Phosphate Coatings on Surfaces of Polyethylene/Zinc Stearate phosphate coating, polyethylene Abstract Studies were undertaken investigating improvements presented in this paper concentrated on adding zinc stearate to polyethylene. Important potential benefits

Drelich, Jaroslaw W.

441

Silicon nanoparticles and interstellar extinction

  Astrophysics (arXiv)

Summary: To examine a recently proposed hypothesis that silicon nanoparticles are the source of extended red emission (ERE) in the interstellar medium, we performed a detailed modeling of the mean Galactic extinction in the presence of silicon nanoparticles. For this goal we used the appropriate optical constants of nanosized Si, essentially different from those of bulk Si due to quantum confinement. It was found that a dust mixture of silicon nanoparticles, bare graphite grains, silicate core-organic refractory mantle grains and three-layer silicate-water ice-organic refractory grains works well in explaining the extinction and, in addition, results in the acceptable fractions of UV/visible photons absorbed by silicon nanoparticles: 0.071-0.081. Since these fractions barely agree with the fraction of UV/visible photons needed to excite the observed ERE, we conclude that the intrinsic photon conversion efficiency of the photoluminescence by silicon nanoparticles must be near 100%, if they are the source of the ERE.

Victor G. Zubko; Tracy L. Smith; Adolf N. Witt
1998-11-22

442

Interaction of Nanoparticles with Radiation

  Astrophysics (arXiv)

Summary: Interstellar grains span a wide range of sizes from a few angstroms to a few micrometers. The presence of nanometer-sized or smaller particles in the interstellar medium is indicated directly by the interstellar far ultraviolet (UV) extinction, the ubiquitous 3.3, 6.2, 7.7, 8.6, and 11.3$\\mum$ polycyclic aromatic hydrocarbon (PAH) emission features, the near and mid infrared broadband emission seen in the IRAS 12 and 25$\\mum$ bands and the COBE-DIRBE 3.5, 4.9, 12 and 25$\\mum$ bands, the 10--100$\\GHz$ Galactic foreground microwave emission, and indirectly by the heating of interstellar gas. For nanoparticles under interstellar conditions, UV/visible photon absorption is the dominant excitation process. With a heat capacity smaller than or comparable to the energy of an energetic stellar photon, nanoparticles are subject to single-photon heating, followed by vibrational relaxation, photoionization, and photodestruction. With excited electrons spatially confined, semiconductor nanoparticles are expected to luminesce efficiently. This review focuses on the photophysics of nanoparticles with emphasis on the stochastic heating and the vibrational excitation of interstellar PAH molecules, and the excitation of photoluminescence with special attention given to silicon nanoparticles.

Aigen Li
2003-11-04

443

Silicon nanoparticles and interstellar extinction

  CERN Preprints

Summary: To examine a recently proposed hypothesis that silicon nanoparticles are the source of extended red emission (ERE) in the interstellar medium, we performed a detailed modeling of the mean Galactic extinction in the presence of silicon nanoparticles. For this goal we used the appropriate optical constants of nanosized Si, essentially different from those of bulk Si due to quantum confinement. It was found that a dust mixture of silicon nanoparticles, bare graphite grains, silicate core-organic refractory mantle grains and three-layer silicate-water ice-organic refractory grains works well in explaining the extinction and, in addition, results in the acceptable fractions of UV/visible photons absorbed by silicon nanoparticles: 0.071-0.081. Since these fractions barely agree with the fraction of UV/visible photons needed to excite the observed ERE, we conclude that the intrinsic photon conversion efficiency of the photoluminescence by silicon nanoparticles must be near 100%, if they are the source of the ERE.

Zubko, V G; Witt, A N; Zubko, Victor G.; Smith, Tracy L.; Witt, Adolf N.
1999-01-01

444

Proceedings of the 2004 NSF Design, Service and Manufacturing Grantees and Research Conference Nanoparticle Assembly by Nanoxerography

  Materials Science Websites

Summary: -phase was developed as well. The printer uses a transparent particle assembly module designed to direct and monitor gold4 , indium5 , and ion sputtered aluminum6 nanoparticles are used for single electron transistors and transfer of 50 nm to 20 µm sized particles including iron oxide, graphitized carbon, iron beads, and Xerox

Jacobs, Heiko O.

445

Proceedings of 2005 NSF DMII Grantees Conference, Scottsdale, Arizona Grant #0217538 Printing of Nanoparticles with Sub-100 nm Resolution

  Materials Science Websites

Summary: resolution in 10 seconds. A transparent particle assembly module was used to direct and monitor the assembly] , and biological markers[3] . Evaporated gold[4] , indium[5] , and ion sputtered aluminum[6] nanoparticles have and transfer of 50 nm to 20 µm sized particles including silver, gold, indium, iron oxide, graphitized carbon

Jacobs, Heiko O.

446

HIGH-CURRENT ZINC-AIR MICROBATTERY BASED ON A MICROMACHINED MULTILAYER LATERAL METALLIC SCAFFOLD

  Materials Science Websites

Summary: HIGH-CURRENT ZINC-AIR MICROBATTERY BASED ON A MICROMACHINED MULTILAYER LATERAL METALLIC SCAFFOLD A: We present a three-dimensional zinc-air microbattery with improved discharge rate and reduced `skeleton'. This scaffold consists of alternating copper and nickel layers supporting zinc


447

Calculation of critical dimensions for wurtzite and cubic zinc blende coaxial nanowire heterostructures

  Materials Science Websites

Summary: Calculation of critical dimensions for wurtzite and cubic zinc blende coaxial nanowire-shell heterostructures in 111 zinc blende and 0001 wurtzite geometries. These calculations reveal that critical limits in both wurtzite and zinc blende structures. The results of these explorations are expected

Yu, Edward T.

448

Topological Features of both Electron Density and Electrostatic Potential in Bis(tiosemicarbazide)zinc(II)

  Physics Websites

Summary: 1 Topological Features of both Electron Density and Electrostatic Potential in Bis(tiosemicarbazide)zinc of bis(tiosemicarbazide)zinc(II) dinitrate complex, [Zn(CH5N3S)2](NO3)2, was studied. The Hansen to the treatment of the electron density of the zinc atom interacting with two thiosemicarbazide ligands

Paris-Sud XI, Université de

449

Computational Protocol for Predicting the Binding Affinities of Zinc Containing MetalloproteinLigand

  Biology and Medicine Websites

Summary: Computational Protocol for Predicting the Binding Affinities of Zinc Containing Metalloprotein, Indian Institute of Technology, Hauz Khas, New Delhi-110016, India ABSTRACT Zinc is one of the most. Coordina- tion geometry of the zinc ion in the active site of the metalloprotein­ligand complexes poses

Jayaram, Bhyravabotla

450

Plasma clearance of cadmium and zinc in non-acclimated and metal-acclimated trout

  Environmental Sciences and Ecology Websites

Summary: Plasma clearance of cadmium and zinc in non-acclimated and metal-acclimated trout M. Jasim concentration of waterborne cadmium (Cd, 26.7 nmol/l) or waterborne zinc (Zn, 2294 nmol/l) for 30 days to induce. Introduction Cadmium (Cd) and zinc (Zn) are trace elements that are common constituents of industrial efflu

Grosell, Martin

451

Identification and Characterization of ZFP-57, a Novel Zinc Finger Transcription Factor in the Mammalian Peripheral

  Biology and Medicine Websites

Summary: Identification and Characterization of ZFP-57, a Novel Zinc Finger Transcription Factor To isolate new zinc finger genes expressed at early stages of peripheral nerve development, we have used PCR to amplify conserved zinc finger sequences. RNA from rat embryonic day 12 and 13 sciatic nerves, a stage when

Jessen, Kristjan R

452

A single zinc finger optimizes the DNA interactions of the nucleocapsid protein of the yeast

  Biology and Medicine Websites

Summary: A single zinc finger optimizes the DNA interactions of the nucleocapsid protein of the yeast, a likely ancestor of HIV-1 NC, are not well understood. In addition, it is unclear whether a single zinc residues and the unique zinc finger at the C-terminus are required for opti- mum chaperone activity

Levin, Judith G.

453

Kinetics of Zinc/ Arsenate Co-Sorption at the Goethite-Water Interface. (5827)

  Environmental Management and Restoration Websites

Summary: Kinetics of Zinc/ Arsenate Co-Sorption at the Goethite-Water Interface. (5827) Authors: D.L. Sparks of aging time. Arsenate and zinc formed adamite-like and koettigite-like surface precipitates on goethite Presentation Start: 9:15 AM Keywords: Arsenic; Zinc; co-sorption; kinetics #12;

Sparks, Donald L.

454

Mechanical properties of zinc and calcium phosphates: Structural insights and relevance to anti-wear functionality

  Materials Science Websites

Summary: Mechanical properties of zinc and calcium phosphates: Structural insights and relevance to anti to quite dramatic, the latter being the case in particular for low-coordinated zinc phosphates containing and rubbing. New results on the aging of zinc phosphate tribo films are presented as well. The softening

Mueser, Martin

455

Speciation and Release Kinetics of Zinc in Contaminated Paddy Soils Saengdao Khaokaew,*,

  Environmental Management and Restoration Websites

Summary: Speciation and Release Kinetics of Zinc in Contaminated Paddy Soils Saengdao Khaokaew,*, Gautier, Brookhaven National Laboratory, Upton, New York 11026, United States *S Supporting Information ABSTRACT: Zinc and Zn bioavailability in the Cd-Zn cocontaminated paddy soils. INTRODUCTION Zinc-mining and smelter

Sparks, Donald L.

456

Structure of a ~Cys3His! zinc ribbon, a ubiquitous motif in archaeal and eucaryal transcription

  Biotechnology Websites

Summary: Structure of a ~Cys3His! zinc ribbon, a ubiquitous motif in archaeal and eucaryal transcription transcription factor IIF ~TFIIF!. TFIIB contains a zinc-binding motif near the N-terminus that is directly is similar to the reported zinc-ribbon motifs in several transcription-related proteins from archaea

Scott, Robert A.

457

Kinetic Analysis of the Zinc-Dependent Deacetylase in the Lipid A Biosynthetic Pathway

  Chemistry Websites

Summary: Kinetic Analysis of the Zinc-Dependent Deacetylase in the Lipid A Biosynthetic Pathway Amanda L. Mc-negative bacteria is catalyzed by the zinc-dependent hydrolase LpxC that removes an acetate from the nitrogen base for deprotonation and activation of the zinc-bound water. Lipopolysaccharide (LPS)1 is a unique

Zhou, Pei

458

Water Research 37 (2003) 21732185 Natural variation of copper, zinc, cadmium and selenium

  Environmental Sciences and Ecology Websites

Summary: Water Research 37 (2003) 2173­2185 Natural variation of copper, zinc, cadmium and selenium 2002; accepted 22 November 2002 Abstract Copper, zinc, cadmium and selenium were measured the accumulation of trace metals in contaminated environments. Copper, zinc, cadmium and selenium concentrations

Canberra, University of

459

Viscoelastic Properties of Sulfonated Ethylene-Propylene Terpolymer Neutralized with Zinc Cation

  Materials Science Websites

Summary: Viscoelastic Properties of Sulfonated Ethylene- Propylene Terpolymer Neutralized with Zinc Cation-propylene terpolymer (EPDM), neutralized with zinc cation. The sulfonation levels were 15 to 20 meq/100 g polymer (0.47 and 0.62 mol %), and for each level the effect of the ionic plasticizer, zinc stearate, was investigated

Granick, Steve

460

Synthesis and Characterization of a New Three-Dimensional Organically Templated Zinc

  Chemistry Websites

Summary: Synthesis and Characterization of a New Three-Dimensional Organically Templated Zinc Phosphate, Zn6. Introduction Since the first microporous zinc phosphates with zeolite-like topologies were reported by Stucky features have been growing rapidly in recent years, and today there are >20 different zinc phosphates


461

In silico abstraction of zinc finger nuclease cleavage profiles reveals an expanded landscape

  Chemistry Websites

Summary: In silico abstraction of zinc finger nuclease cleavage profiles reveals an expanded landscape of therapeutic applications. Recently, two improved methods for identifying the off-target effects of zinc finger. INTRODUCTION Gene-editing nucleases, such as zinc finger nucleases (ZFNs), transcription activator

Liu, David R.

462

Concerted action of zinc and ProSAP/Shank in synaptogenesis and synapse maturation

  Biology and Medicine Websites

Summary: EMBO open Concerted action of zinc and ProSAP/Shank in synaptogenesis and synapse maturation of zinc-sensitive ProSAP1/ Shank2 or ProSAP2/Shank3 leads to increased synapse density, although all of zinc-insensitive Shank1 causes the rapid disintegration of PSDs and the loss of several postsynaptic

Alford, Simon

463

A zinc finger protein array for the visual detection of specific DNA sequences for

  Biology and Medicine Websites

Summary: A zinc finger protein array for the visual detection of specific DNA sequences for diagnostic possesses great potential for the development of diagnostics. Zinc finger domains provide a powerful fragments of b-lactamase each linked to engineered zinc finger proteins (ZFPs). Here the SEER­LAC system

Revzin, Alexander

464

THE INFLUENCE OF FLAKE CHEMICAL PROPERTIES AND ZINC BORATE ON GEL TIME OF PHENOLIC RESIN FOR

  Renewable Energy Websites

Summary: THE INFLUENCE OF FLAKE CHEMICAL PROPERTIES AND ZINC BORATE ON GEL TIME OF PHENOLIC RESIN and their effects on gel time of phenol formaldehyde (PF) oriented strandboard resin with and without zinc borate decreased as the amount of zinc borate increased. The reduced gel time was partially recov- ered by using


465

Zinc inhibition of -aminobutyric acid transporter 4 (GAT4) reveals a link between excitatory

  Biology and Medicine Websites

Summary: Zinc inhibition of -aminobutyric acid transporter 4 (GAT4) reveals a link between excitatory and extrasynaptic regions. In certain brain regions, vesic- ular zinc is colocalized and coreleased with glutamate of zinc on expressed GATs (GAT1, GAT2, GAT3, and GAT4) in Xenopus laevis oocytes by using tracer flux

Eskandari, Sepehr

466

Performance Enhancement of a Graphene-Zinc Phosphide Solar Cell Using the Electric Field-Effect

  Materials Science Websites

Summary: Performance Enhancement of a Graphene-Zinc Phosphide Solar Cell Using the Electric Field with an Earth-abundant and low cost zinc phosphide (Zn3P2) thin-film light absorber. Adding a semitransparent to demonstrate the control of the energy barrier and depletion width in the zinc phosphide. Our photovoltaic

Javey, Ali

467

MiniZinc: Towards A Standard CP Modelling Nicholas Nethercote1

  Computer Technologies and Information Sciences Websites

Summary: MiniZinc: Towards A Standard CP Modelling Language Nicholas Nethercote1 , Peter J. Stuckey1 , Ralph. In this paper we present MiniZinc, a simple but expressive CP mod- elling language which is suitable- sibilities. Equally importantly, we also propose a low-level solver-input language called FlatZinc

Stuckey, Peter J.

468

Rising zinc: a significant cause of ischemic neuronal death in the CA1 region of rat

  Biology and Medicine Websites

Summary: Rising zinc: a significant cause of ischemic neuronal death in the CA1 region of rat hippocampus; zinc; cell death Introduction Neurons undergo changes in ion homeostasis as a result of normal- mulation of zinc (Zn2 + ) in oxygen-glucose depriva- tion and reoxygenation (OGD/R; Stork and Li, 2006a

Li, Yang V.

469

ORIGINAL PAPER A theoretical study of zinc(II) interactions with amino acid

  Materials Science Websites

Summary: ORIGINAL PAPER A theoretical study of zinc(II) interactions with amino acid models and peptide that the zinc complexes with cysteine adopt a tetrahedral conformation. Conversely, complexes with one or two a square-planar geometry. Keywords Density functional theory Á Zinc Á Amino acids Á Metallization Á Enzymes

Deymier, Pierre

470

Structural and Room-Temperature Transport Properties of Zinc Blende and Wurtzite InAs Nanowires

  Engineering Websites

Summary: Structural and Room-Temperature Transport Properties of Zinc Blende and Wurtzite InAs Nanowires between pure zinc blende (ZB) NWs and wurtzite (WZ) NWs containing stacking faults and small ZB segments. Pure zinc blende (ZB) InAs NWs grown on SiO2/Si substrates are characterized by a rotational twin along

Wang, Deli

471

Zinc(II)-Mediated Inhibition of a Ribonuclease by an N-Hydroxyurea Nucleotide

  Biology and Medicine Websites

Summary: Zinc(II)-Mediated Inhibition of a Ribonuclease by an N-Hydroxyurea Nucleotide Joshua J. Higgin strategies for inhibiting or inactivating ribonucleases are desirable. Zinc is the second most abundant transition metal in biology and is essential for life.10 In cells, almost all zinc is bound to proteins

Raines, Ronald T.

472

The Design of the Zinc Modelling Language KIM MARRIOTT kim.marriott@infotech.monash.edu.au

  Computer Technologies and Information Sciences Websites

Summary: The Design of the Zinc Modelling Language KIM MARRIOTT kim.marriott@infotech.monash.edu.au Clayton.wallace@infotech.monash.edu.au Clayton School of IT, Monash University, Vic. 3800, Australia Abstract. Zinc is a new modelling language developed as part of the G12 project. It has four important characteristics. First, Zinc allows

Garcia de la Banda, Maria

473

Electron-Beam Formation from Spin-Orbit Interactions in Zinc-Blende Semiconductor Quantum Wells

  Physics Websites

Summary: Electron-Beam Formation from Spin-Orbit Interactions in Zinc-Blende Semiconductor Quantum Wells in a two-dimensional quantum well made from a zinc-blende semiconductor. This ``electron-beam'' formation to the quantum well and the intrinsic spin-orbit field of the zinc-blende crystal lattice in a quantum well

Flatte, Michael E.

474

Neuroscience Letters 419 (2007) 119124 Fluorescence imaging study of extracellular zinc

  Biology and Medicine Websites

Summary: Neuroscience Letters 419 (2007) 119­124 Fluorescence imaging study of extracellular zinc Elsevier Ireland Ltd. All rights reserved. Keywords: Zinc; Calcium; Fluorescence; Mossy fiber; Neurotransmitter; Synapse; FluoZin-3; Zinpyr-4; Newport Green Zinc (Zn2+) is found in a specific subset

Li, Yang V.

475

2-Anthryltriazolyl-containing multidentate ligands: zinc-coordination mediated photophysical processes and

  Materials Science Websites

Summary: 2-Anthryltriazolyl-containing multidentate ligands: zinc- coordination mediated photophysical tsignificant fluorescent enhancement upon zinc coordination (B). Various experimental evidence supports a stepwise binding model of 1 to zinc ion over a concentration gradient (A), eng ( ) route to a 1:1 complex


476

A Proton-Dependent Zinc Uptake in PC12 Cells Rengarajan V. Balaji1,2

  Biology and Medicine Websites

Summary: A Proton-Dependent Zinc Uptake in PC12 Cells Rengarajan V. Balaji1,2 and Robert A. Colvin1 loading' the cells and the effect of such a change on radioactive zinc uptake was studied. It was found that zinc uptake was stimulated in cells loaded with protons without causing any measurable change


477

Solution Structure of an Archaeal DNA Binding Protein with an Eukaryotic Zinc Finger Fold

  Physics Websites

Summary: Solution Structure of an Archaeal DNA Binding Protein with an Eukaryotic Zinc Finger Fold Florence. Nevertheless, some of these organisms show predicted classical zinc fingers motifs of the C2H2 type, which coordinating zinc missing, as well as of N- and C-terminal extensions. We showed that the protein AFV1p06 binds

Paris-Sud XI, Université de

478

Zinc adaptation and resistance to cadmium toxicity in mammalian cells. Molecular insight by proteomic analysis.

  Physics Websites

Summary: 1 Zinc adaptation and resistance to cadmium toxicity in mammalian cells. Molecular insight Cedex 9, France. Tel: (33) 4 38 78 56 23, e-mail: jean-marc.moulis@cea.fr Abbreviations: HZR: High Zinc.1002/pmic.200701067 #12;2 ABSTRACT To identify proteins involved in cellular adaptive responses to zinc

Paris-Sud XI, Université de

479

Control of Voltage-Independent Zinc Inhibition of NMDA Receptors by the NR1 Subunit

  Biology and Medicine Websites

Summary: Control of Voltage-Independent Zinc Inhibition of NMDA Receptors by the NR1 Subunit Stephen F State University, Kennesaw, Georgia 30144 Zinc inhibits NMDA receptor function through both voltage allosteric regulators of receptor function: protons, polyamines, and Zn2 . Key words: NMDA receptors; zinc

Traynelis, Stephen F.

480

Interactions of Silicate Ions with Zinc(II) and Aluminum(III) in Alkaline Aqueous Solution

  Geosciences Websites

Summary: Interactions of Silicate Ions with Zinc(II) and Aluminum(III) in Alkaline Aqueous Solution Michel R solution form complexes with zinc(II) (present as zincate, Zn(OH)3 - or Zn(OH)4 2- ) and, concomitantly(IV) in experimental animals is known9-12 to affect the metabolism of zinc(II), which is essential for the formation

Sahai, Nita

481

Zinc Deficiency Impacts CO2 Assimilation and Disrupts Copper Homeostasis in Chlamydomonas reinhardtii*S

  Renewable Energy Websites

Summary: Zinc Deficiency Impacts CO2 Assimilation and Disrupts Copper Homeostasis in Chlamydomonas'Energie Atomique Grenoble, 17 Rue des Martyrs, 38054 Grenoble, France Background: Zinc is required for catalysis and protein structure. Results: Zinc-deficient Chlamydomonas lose carbonic anhydrases and cannot grow


482

Efficient gene targeting in Drosophila by direct embryo injection with zinc-finger nucleases

  Biology and Medicine Websites

Summary: Efficient gene targeting in Drosophila by direct embryo injection with zinc-finger nucleases Kelly injection of mRNAs encoding specific zinc-finger nucleases (ZFNs). Both local mutagenesis via nonhomologous experimental organisms. Zinc-finger nucleases (ZFNs) are proving to be powerful tools for directed genome

Rutter, Jared

483

Randomized controlled trial of prenatal zinc supplementation and fetal bone growth13

  Biology and Medicine Websites

Summary: Randomized controlled trial of prenatal zinc supplementation and fetal bone growth1­3 Mario, and Janet A Dipietro ABSTRACT Background: Maternal zinc deficiency is relatively common in developing whether improvement in ma- ternal gestational zinc status is positively associated with fetal growth

Dominici, Francesca

484

Unsolved Mystery The Case of the Fickle Fingers: How the PRDM9 Zinc

  Biology and Medicine Websites

Summary: Unsolved Mystery The Case of the Fickle Fingers: How the PRDM9 Zinc Finger Protein Specifies domain that tri-methylates H3K4 and a zinc finger domain able to bind DNA (Figure 1); and Prdm9-null mice, the second half of the human PRDM9 zinc finger array is computationally predicted to bind the sequence motifs

Dean, Matthew D.

485

Asymmetrical roles of zinc fingers in dynamic DNA-scanning process by the inducible

  Chemistry Websites

Summary: Asymmetrical roles of zinc fingers in dynamic DNA-scanning process by the inducible transcription three zinc finger domains and activates genes in re- sponse to cellular stimuli such as synaptic signals motions when scanning DNA. In particular, the zinc finger 1 (ZF1) of Egr-1 in the nonspecific complex

Martin, Jan M.L.

486

Author's personal copy NMR structure of the mengovirus Leader protein zinc-finger domain

  Biology and Medicine Websites

Summary: Author's personal copy NMR structure of the mengovirus Leader protein zinc-finger domain Claudia C an activity mapped to its zinc-binding region. Here we report the three-dimensional solution structure. The domain forms a CHCC zinc- finger with a fold comprising a b-hairpin followed by a short a-helix that can


487

Deprotonative metallation of ferrocenes using mixed lithium-zinc and lithium-cadmium combinations

  Computer Technologies and Information Sciences Websites

Summary: 1 Deprotonative metallation of ferrocenes using mixed lithium-zinc and lithium-cadmium combinations of lithium and zinc amides were reacted with a range of ferrocenes; deprotonative mono- or di-magnesium, -zinc, and -manganese bases, and the species isolated were studied by X-ray30 diffraction.5 Another

Boyer, Edmond

488

The pure rotational spectrum of ZnCl (X2 Variations in zinc halide bonding

  Chemistry Websites

Summary: The pure rotational spectrum of ZnCl (X2 R+ ): Variations in zinc halide bonding E.D. Tenenbaum, M) in character, suggesting that the zinc chloride bond is rela- tively ionic. Published by Elsevier Inc. Keywords: Zinc chloride (ZnCl); Microwave spectroscopy; Rotational spectroscopy; Hyperfine structure 1

Ziurys, Lucy M.

489

MANUFACTURING EFFECT ON THE LOCATION OF ZINC USED AS A DOPING IN HYDROXYAPATITE BIOMATERIAL

  Physics Websites

Summary: MANUFACTURING EFFECT ON THE LOCATION OF ZINC USED AS A DOPING IN HYDROXYAPATITE BIOMATERIAL E and HAP doped with zinc manufactured by Bioland (Toulouse, France) [1]. This element is selected for its is better resorbed than pure HAP. One of the different hypotheses is that zinc induces modifications

Paris-Sud XI, Université de

490

Zinc Phosphate with Gigantic Pores of 24 Tetrahedra Guo-Yu Yang and Slavi C. Sevov*

  Chemistry Websites

Summary: Zinc Phosphate with Gigantic Pores of 24 Tetrahedra Guo-Yu Yang and Slavi C. Sevov* Department frameworks are glassy-like. Here we report the synthesis and structure of a zinc phosphate, Zn3(PO4)2(PO3OH zinc borophosphate analogous to a known ethylenediamine-templated cobalt borophosphate;13 therefore


491

Integrative analysis of the zinc finger transcription factor Lame duck in the Drosophila myogenic

  Biology and Medicine Websites

Summary: Integrative analysis of the zinc finger transcription factor Lame duck in the Drosophila myogenic downstream of the Drosophila zinc finger TF Lame duck (Lmd) by combining both previously published and newly in the specification of FCMs is a member of the Gli superfamily of zinc finger TFs, Lame duck (Lmd) (5, 7, 8

Bulyk, Martha L.

492

Adaptive evolution drives the diversification of zinc-finger binding domains.

  Biology and Medicine Websites

Summary: 1 Adaptive evolution drives the diversification of zinc-finger binding domains. Deena Schmidt words: tandem gene duplication, adaptive evolution, zinc-finger genes Running Head: Adaptive evolution of zinc-finger genes * Corresponding Author: 523 Malott Hall, Cornell U. Ithaca NY 14853 Phone: (607) 255

Durrett, Richard

493

Global and Stage Specific Patterns of Kruppel-Associated-Box Zinc Finger Protein Gene Expression in

  Computer Technologies and Information Sciences Websites

Summary: Global and Stage Specific Patterns of Kru¨ppel- Associated-Box Zinc Finger Protein Gene Expression steps of mammalian development. KRAB-containing zinc finger proteins represent the largest group Specific Patterns of Kru¨ppel-Associated-Box Zinc Finger Protein Gene Expression in Murine Early Embryonic

Candea, George

494

Reaction Mechanism of the Trinuclear Zinc Enzyme Phospholipase C: A Density Functional Theory Study

  Chemistry Websites

Summary: Reaction Mechanism of the Trinuclear Zinc Enzyme Phospholipase C: A Density Functional Theory StudyVed: January 14, 2010 Phosphatidylcholine-preferring phospholipase C is a trinuclear zinc agreement with experimental kinetic studies. The zinc ions are suggested to orient the substrate

Liao, Rongzhen

495

A comprehensive approach to zinc-finger recombinase customization enables genomic

  Chemistry Websites

Summary: A comprehensive approach to zinc-finger recombinase customization enables genomic targeting Received December 18, 2012; Revised January 16, 2013; Accepted January 17, 2013 ABSTRACT Zinc of serine recombinases and a custom-designed zinc-finger DNA-binding domain. The use of ZFRs, however, has

Barbas III, Carlos F.

496

Crystal structure of the BcZBP, a zinc-binding protein from Bacillus cereus

  Biology and Medicine Websites

Summary: Crystal structure of the BcZBP, a zinc-binding protein from Bacillus cereus Functional insights to the understanding of the role Keywords Bacillus cereus; deacetylase; hydrolase; Rossmann fold; zinc-dependent enzyme infectious B. anthracis. The zinc-binding protein of B. cereus, BcZBP, is encoded from the bc1534 gene which

Glykos, Nikolaos

497

Theoretical study of nonpolar surfaces of aluminum nitride: Zinc blende ,,110... and wurtzite ,,1010...

  Physics Websites

Summary: Theoretical study of nonpolar surfaces of aluminum nitride: Zinc blende ,,110... and wurtzite ,,101 structure and electronic properties of the nonpolar surfaces, namely zinc blende 110 and wurtzite (10 1 although thin films of zinc- blende polytype were grown as well. For the bulk phase of AlN, recent

Pandey, Ravi

498

Reactivity of polynuclear zinc-thiolate sites Gilles Ohanessian, Delphine Picot, Gilles Frison*

  Physics Websites

Summary: 1 Reactivity of polynuclear zinc-thiolate sites Gilles Ohanessian, Delphine Picot, Gilles Frison affinities of a series of mono- and polynuclear zinc-thiolate compounds, mimicking zing finger protein the intrinsic nucleophilicity of synthetic and natural zinc-bound thiolates and to compare their relative

Paris-Sud XI, Université de

499

QUELQUES PARAMETRES DE CONTROLE DES PROPRIETES ELECTROMAGNETIQUES DE FERRITES DE NICKEL-ZINC

  Computer Technologies and Information Sciences Websites

Summary: QUELQUES PARAMETRES DE CONTROLE DES PROPRIETES ELECTROMAGNETIQUES DE FERRITES DE NICKEL-ZINC DANS Microondes et Matériaux, Brest : France (2010)" #12;Les ferrites de Nickel-zinc présentent des propriétés de poudres de nanoferrites doux de structure spinelle de Nickel- Zinc substitués Cobalt. L

Boyer, Edmond

500

Journal of the European Ceramic Society 27 (2007) 941945 Synthesis of nanosized zinc ferrites from liquid

  Materials Science Websites

Summary: Journal of the European Ceramic Society 27 (2007) 941­945 Synthesis of nanosized zinc ferrites from Available online 6 June 2006 Abstract Micro- and nanosized zinc ferrite particles were prepared in RF thermal plasma conditions. Ethanol solutions of the mixture of zinc- and iron- nitrates were used

Gubicza, Jenõ

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