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Sample search results for: zinc oxide nanoparticles

 

1

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

  Computer Technologies and Information Sciences Websites

Summary: of nanosized particles in titanium dioxide- and zinc oxide-based sunscreens," J. Am. Acad. Dermatol. 61(4), 685. 55(5), 249­261 (2006). 3. H. A. Jeng and J. Swanson, "Toxicity of metal oxide nanoparticlesIn vivo imaging of immune cell dynamics in skin in response to zinc-oxide nanoparticle exposure

Boppart, Stephen

2

Zinc Oxide Nanostructures by Solvothermal Synthesis .

  Open Access Theses and Dissertations

Summary: ??The synthesis, characterization, and properties of three types of one-dimensional zinc oxide nanostructures are described. They were obtained by solvothermal treatment of nanometric zinc oxide… (more)

Segovia, M.
2012-01-01

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

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 collection efficiency over traditional nanoparticle cells. Introduction Zinc oxide (ZnO) is a commercially, 2006 We review two strategies for growing ZnO nanowires from zinc salts in aqueous and organic solvents

Yang, Peidong

5

Solution grown antimony doped zinc oxide films.

  Open Access Theses and Dissertations

Summary: ??Zinc oxide is an extensively studied semiconducting material due to its versatile properties applicable to many technologies such as electronics, optoelectronics, sensing and renewable energy.… (more)

Riley, Conor T.
2012-01-01

6

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.

7

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


8

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

9

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.

10

The activity of zinc oxide in multicomponent slags.

  Open Access Theses and Dissertations

Summary: ??The activity of zinc oxide in multicomponent slags has been investigated. Activities were determined experimentally Toy equilibrating iron saturated brasses with slags containing iron oxide.… (more)

Davenport, William George
2011-01-01

11

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

12

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.

13

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

14

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.

15

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 Zinc oxide is a unique material that exhibits exceptional semiconductin, Georgia 30332-0245 Z inc oxide (ZnO) is a wide band gap (3.37 eV) semiconductor having a high electron

Wang, Zhong L.

16

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.

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

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.

19

Acid monolayer functionalized iron oxide nanoparticle catalysts.

  Open Access Theses and Dissertations

Summary: ??Superparamagnetic iron oxide nanoparticle functionalization is an area of intensely active research, with applications across disciplines such as biomedical science and heterogeneous catalysis. This work… (more)

Ikenberry, Myles
2014-01-01

20

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

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

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

  Chemistry Websites

Summary: Variable-Temperature Electrical Measurements of Zinc Oxide/Tin Oxide-Cosubstituted Indium Oxide A University, Evanston, Illinois 60208-3113 M. A. Lane, P. Brazis, and C. R. Kannewurf Department of Electrical and Computer Engineering, Northwestern University, Evanston, Illinois 60208-3118 T. Hogan Electrical

Poeppelmeier, Kenneth R.

23

Stable, Efficient, and All-Solution-Processed Quantum Dot Light-Emitting Diodes with Double-Sided Metal Oxide Nanoparticle Charge

  Materials Science Websites

Summary: Stable, Efficient, and All-Solution-Processed Quantum Dot Light- Emitting Diodes with Double dot light- emitting diode (QLED) with double-sided metal oxide (MO) nanoparticle (NP) charge transport. KEYWORDS: quantum dot, light-emitting diodes, nanoparticles, tungsten oxide, zinc oxide 1. INTRODUCTION

Demir, Hilmi Volkan

24

Solution grown antimony doped zinc oxide films

  University of California eScholarship Repository

Summary: of 10mM zinc acetate and 10mM HMTA in deionized water and/orof zinc acetate and HMTA in a 1:2 t-butanol:water volumetricwater splitting and H2 generation, Nanoscale, 2012, 4, 1515-1521 [21] Cui, J,; Zinc

Riley, Conor T.
2012-01-01

25

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.

26

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

27

Open Access Research Article Biosynthesis and Characterization of Manganese and Zinc Nanoparticles 1

  CiteSeer

Summary: The biosynthesis of metal nanoparticles is an expanding research area due to the potential applications for the ecofriendly development of novel technologies. Generally, nanoparticles are prepared by a variety of chemical methods which are not environmentally friendly. Present study reported a fast, convenient and intracellular method for the synthesis of manganese and zinc nanoparticles by reducing Manganese sulphate and Zinc sulphate with the help of Streptomyces sp. HBUM171191. The characterization of nanoparticles was done by using UV- Vis Spectrophotometer. The morphology of silver nanoparticles was confirmed by Transmission Electron microscopy (TEM). The size of MnSO4 and ZnSO4 was ranges from 10 to 20nm.

Waghmare S. S; Deshmukh A. M; Kulkarni S. W.; Oswaldo L. A

28

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

29

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

30

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.

31

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


32

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

33

An environmentally sensitive equilibrium morphology phase map of zinc sulphide nanoparticles.

  Open Access Theses and Dissertations

Summary: ??Zinc sulphide (ZnS) nanoparticles have promising applications in a diverse range of fields, including bio-technology; optoelectronics; catalysis; photovoltaics; gas, chemical and bio-sensors; field effect transistors;… (more)

Feigl, C
2012-01-01

34

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

35

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

36

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

37

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

38

J Am Cerom Soc 73 [lo] 3026-32 (19901 Electrical Properties of Individual Zinc Oxide

  Materials Science Websites

Summary: J Am Cerom Soc 73 [lo] 3026-32 (19901 Electrical Properties of Individual Zinc Oxide Grain properties of single interfaces and grain boundaries. [Keywords: grain boundaries, zinc oxide, varistors semiconductor, zinc oxide (ZnO), which is used commercially as a varistor material. This is an excellent

Rohrer, Gregory S.

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

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.

41

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

42

Peptide functionalized superparamagnetic iron oxide nanoparticles as MRI contrast agents

  Engineering Websites

Summary: Peptide functionalized superparamagnetic iron oxide nanoparticles as MRI contrast agents Selim the MRI signal in tissues of interest. Superparamagnetic iron oxide nanoparticles (SPIONs) are used of water molecules in different tissues create distinct signal intensities that enable detection

Atalar, Ergin

43

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

44

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

45

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

46

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

47

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

48

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

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

Band-Gap Engineering of Zinc Oxide Colloids via Lattice Substitution with Sulfur Leading to Materials with Advanced Properties for

  Mathematics Websites

Summary: Band-Gap Engineering of Zinc Oxide Colloids via Lattice Substitution with Sulfur Leading requires a precise control over electronic properties. Zinc oxide is favorable for large such as zinc oxide (ZnO).3,4 At first sight, ZnO is a simple material. Unlike typical transition metals, zinc

Nabben, Reinhard

52

Zinc Oxide and Nitride Nanowire Based Light Emitting Diodes

  University of California eScholarship Repository

Summary: the hydrolysis of zinc salt in water. The precursors were asdecomposition of the zinc salt in water to form zinc-Zinc Nitrate Hexahydrate, 1.753 g HMTA, and 2 g PEI and enough filtered deionized water

Lai, Elaine Michelle
2009-01-01

53

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


54

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

55

Zinc Oxide Nanowires Low-Temperature Wafer-Scale Production of

  Chemistry 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

56

Complement receptor type 2conjugated superparamagnetic iron oxide nanoparticles

  Biology and Medicine Websites

Summary: Method of detection: Magnetic resonance imaging (MRI) Source of signal: Iron oxide Activation: No StudiesComplement receptor type 2­conjugated superparamagnetic iron oxide nanoparticles [CR2-Fc-SPIO] Kam: Complement receptor type 2­conjugated gold/superparamagnetic iron oxide nanoparticles Abbreviated name: CR2

Levin, Judith G.

57

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

58

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

59

Adiabatic pulse preparation for imaging iron oxide nanoparticles.

  Open Access Theses and Dissertations

Summary: ??Iron oxide nanoparticles are of great interest as contrast agents for research and potentially clinical molecular magnetic resonance imaging (MRI). Biochemically modifying the surface coatings… (more)

Harris, Steven Scott
2012-01-01

60

In situ oxidation study of supported Rh and Pd nanoparticles.

  Open Access Theses and Dissertations

Summary: ??The targeted development of catalysts requires a detailed understanding of the atomic structure of nanoparticles during chemical reactions. Within this thesis project the oxidation properties… (more)

Nolte, Philipp
2009-01-01

61

Compact Zwitterion-Coated Iron Oxide Nanoparticles for Biological Applications

  MIT - DSpace

Summary: The potential of superparamagnetic iron oxide nanoparticles (SPIONs) in various biomedical applications, including magnetic resonance imaging (MRI), sensing, and drug delivery, requires that their surface be derivatized ...

Wei, He

62

Nonaqueous Synthesis of Metal Oxide Nanoparticles and Their Surface Coating.

  Open Access Theses and Dissertations

Summary: ??This thesis mainly consists of two parts, the synthesis of several kinds of technologically interesting crystalline metal oxide nanoparticles via high temperature nonaqueous solution processes… (more)

Zhang, Ming
2008-01-01

63

SYNTHESIS OF NICKEL-ZINC FERRITE NANOPARTICLES IN POLYOLS: MORPHOLOGICAL AND MAGNETIC STUDIES Poster

  CiteSeer

Summary: Nickel–zinc ferrites are some of the most interesting soft magnetic materials. They have been extensively used in a number of electronic devices because of their low magnetic coercivity, low eddy current related to their high electrical resistivity, and they are especially suitable for high–frequency applications (large permeability). New low-temperature synthesis methods have been developed to obtain these materials; for example, reverse micelle technique [1], hydrothermal technique [2], citrate precursor method [3]. These methods do not allow simultaneous control of the morphology and the crystalline quality of the particles. A new chimie douce route was developed in our laboratory: forced hydrolysis of metallic salts dissolved and heated in a polyol. Polyols are crystal growth media of particular interest for the synthesis of fine particles with a narrow size distribution and high crystallinity [4-7]. All samples are characterized by X ray diffraction and are found to have the spinel structure. Chemical analysis (EDX) shows that these oxides correspond to a mixed Ni-Zn ferrite with a formula close to Ni1-xZnxFe2O4, with x varying over the whole composition range. Particle morphology and particle size are estimated by transmission electron microscopy (TEM). The TEM images show that the Ni-Zn ferrite nanoparticles are isotropic, with a very uniform size,

Z. Beji; T. Ben Chaabane; L. S. Smiri; S. Ammar; F. Fiévet

64

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

  Computer Technologies and Information Sciences 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 oxide (ZnO) as an acceptor. In such organic/inorganic systems, organic materials have the advantage

Southern California, University of

65

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


66

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


67

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

  Physics 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, electrical characterization of the sensors prepared from SILAR deposited nanostructured zinc oxide thin film

Chow, Lee

68

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 intercalation is a general mode of reactivity for metal oxide semiconductors. Finally, the new observations


69

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


70

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

71

J. Phys.: Condens. Matter 11 (1999) 36353644. Printed in the UK PII: S0953-8984(99)98511-9 Electronic structure of spinel oxides: zinc aluminate and

  Physics Websites

Summary: -8984(99)98511-9 Electronic structure of spinel oxides: zinc aluminate and zinc gallate Suresh K Sampath, D G Kanhere 20 October 1998 Abstract. The electronic structure of zinc aluminate (ZnAl2O4) and that of zinc with the atomic sphere approximation. The calculated results predict these zinc-based spinel oxides to be direct

Pandey, Ravi

72

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.

73

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

  Materials Science Websites

Summary: and Semiconductor Devices, Technical University of Moldova, 168 Stefan cel Mare Blvd., MD-2004 Chisinau, Republic Stefan cel Mare Blvd., MD-2004 Chisinau, Republic of Moldova 1. Introduction Zinc oxide is a II­VI group

Kik, Pieter

74

Molecular responses of mouse macrophages to copper and copper oxide nanoparticles inferred from proteomic analyses

  Physics Websites

Summary: in proteins implicated in oxidative stress responses (superoxide dismutases and peroxiredoxins1 Molecular responses of mouse macrophages to copper and copper oxide nanoparticles inferred from title: macrophage responses to copper oxide nanoparticles ABBREVIATIONS BHP: t-butyl hydroperoxide

Paris-Sud XI, Université de

75

Polymer-coated iron oxide nanoparticles for medical imaging

  MIT - DSpace

Summary: One of the most versatile and safe materials used in medicine are polymer-coated iron oxide nanoparticles. This dissertation describes several formulations for in vivo imaging applications. The paramagnetic polymer-coated ...

Chen, Suelin, Ph.D. Massachusetts Institute of Technology
2010-01-01

76

Diverse use of iron oxide nanoparticles for anticancer therapy.

  Open Access Theses and Dissertations

Summary: ??Recent development of a variety of superparamagnetic and ferromagnetic iron/iron oxide (Fe/Fe?O?) nanoparticles with different surface chemistry have been widely studied for numerous biological applications… (more)

Abayaweera, Gayani Sandeepa
2014-01-01

77

Evaluation of the impact of engineered nanoparticles on the operation of watsewater treatment plant.

  Open Access Theses and Dissertations

Summary: ??The effect of engineered nanoparticles (ENPs) mixture consisting of silver oxide, (Agg0[Silver Oxide Nanopartical], 20 nm), titanium dioxide, (TiO2[Titanium dioxide], 30-40 nm) and zinc oxide,… (more)

Eduok, Samuel
2013-01-01

78

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

79

X-ray absorption spectroscopy elucidates the impact of structural disorder on electron mobility in amorphous zinc-tin-oxide thin films

  Chemistry Websites

Summary: in amorphous zinc-tin-oxide thin films Sin Cheng Siah,1,a),b) Sang Woon Lee,2,c) Yun Seog Lee,1 Jaeyeong Heo,3 June 2014) We investigate the correlation between the atomic structures of amorphous zinc-tin-oxide (a-emitting diodes. Zinc oxide and related oxide classes are investigated due to their high electron mobilities


80

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

81

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 that MTDATA matches better with AZO than CuPc, which served as hole injection layer. Keywords: Aluminum doped


82

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 emitting diodes Appl. Phys. Lett. 102, 061114 (2013) Study on phosphor sedimentation effect in white light-emitting://apl.aip.org/about/rights_and_permissions #12;An efficient non-Lambertian organic light-emitting diode using imprinted submicron-size zinc oxide

Demir, Hilmi Volkan

83

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


84

125 Proceedings of the NATO Advanced Workshop on Zinc Oxide, edited by N. Nickel and E. Terukov, NATO Science Series II, Vol. 194, p. 125-32 (2005).

  Physics Websites

Summary: 125 Proceedings of the NATO Advanced Workshop on Zinc Oxide, edited by N. Nickel and E. Terukov, NATO Science Series II, Vol. 194, p. 125-32 (2005). HYDROGEN DONORS IN ZINC OXIDE M.D. McCluskey and S.J. Jokela Department of Physics, Washington State University, Pullman, WA 99164-2814 Abstract: Zinc oxide

McCluskey, Matthew

85

Mechanisms of Zinc Oxide Nanocrystalline Thin Film Formation by Thermal Degradation of Metal-Loaded Hydrogels

  Materials Science Websites

Summary: Mechanisms of Zinc Oxide Nanocrystalline Thin Film Formation by Thermal Degradation of Metal Studi e Ricerche per la Conservazione del Patrimonio Culturale (CISRiC), Laboratorio Arvedi, University, Italy *S Supporting Information ABSTRACT: Thermal degradation of metal-loaded hydrogel films


86

STRAIN SENSING WITH PIEZOELECTRIC ZINC OXIDE THIN FILMS FOR VIBRATION SUPPRESSION IN HARD DISK DRIVES

  Engineering Websites

Summary: -scale positioning [1­3]. How- ever, such schemes may require high-rate vibration sensing that Proceedings of DSCCSTRAIN SENSING WITH PIEZOELECTRIC ZINC OXIDE THIN FILMS FOR VIBRATION SUPPRESSION IN HARD DISK suspensions were installed into commercial hard drives and tested. For the first time, a sensing signal

Horowitz, Roberto

87

Processing and Characterization of P-Type Doped Zinc Oxide Thin Films

  Texas A&M University - TxSpace

Summary: Applications of zinc oxide (ZnO) for optoelectronic devices, including light emitting diodes, semiconductor lasers, and solar cells have not yet been realized due to the lack of high-quality p-type ZnO. In the research presented herein, pulsed laser...

Myers, Michelle Anne
2013-03-18

88

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


89

The general synthesis of Ag nanoparticles anchored on silver vanadium oxides: towards high

  Materials Science Websites

Summary: The general synthesis of Ag nanoparticles anchored on silver vanadium oxides: towards high-pot synthesis of Ag nanoparticles uniformly anchored on silver vanadium oxides (SVOs) including AgVO3, Ag2V4O11 of silver nanoparticles, the large accessible surface area and possible catalytic effects. For instance

Cao, Guozhong

90

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

91

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

92

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

93

Ammonia gas adsorption on metal oxide nanoparticles.

  Open Access Theses and Dissertations

Summary: ??NanoActiveTM metal oxide particles have the ability to destructively adsorb organophosphorus compounds and chlorocarbons. These nanomaterials with unique surface morphologies are subjected to separate, low… (more)

Mohammad, Hasan Abid Urf Turabe Ali
2011-01-01

94

Zinc sorption by iron oxides and soil samples

  Texas A&M University - TxSpace

Summary: Dependence of Zn sorption by the Fe oxides on the suspension pH 43 Zn sorption by the Fe oxides 46 10 Langmuir and Freundlich isotherms for Zn sorption by the Fe oxides 48 Titration curves of ferrihydrite and Si-ferri- hydrite with (+Zn) and without.... dence of Zn sorption by two soi. ls on reaction time 70 16 Zn adsorption by the soil samples 72 FIGURE Page 17 Examples of the Langmuir and Freundlich plots for Zn sorption by soil samples 73 18 Effect of acidification and liming on Zn sorption...

Yli-Halla, Markku Juhani
1989-01-01

95

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

96

Size effect on the oxidation of aluminum nanoparticle: Multimillion-atom reactive molecular dynamics simulations

  Computer Technologies and Information Sciences Websites

Summary: Size effect on the oxidation of aluminum nanoparticle: Multimillion-atom reactive molecular 2013) The size effect in the oxidation of aluminum nanoparticles (Al-NPs) has been observed deforms during the oxidation process. The deformation depends slightly on the size of Al-NP. This reaction

Southern California, University of

97

Solar Energy Materials & Solar Cells 91 (2007) 924930 Plasma-enhanced chemical vapor deposition of zinc oxide at

  Materials Science Websites

Summary: vapor deposition of aluminum-doped zinc oxide has been demonstrated for the first time at 800 Torr W=cm3 RF power, and 225 1C. The average aluminum concentration in the ZnO film was 5:4 Ã? 1020 cmÃ?3 reserved. Keywords: Transparent-conducting oxide (TCO); Al/ZnO; PECVD 1. Introduction Aluminum-doped zinc

Hicks, Robert F.

98

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

99

Synthesis and surface coating/functionalization of iron oxide nanoparticles and study of their properties; -.

  Open Access Theses and Dissertations

Summary: ??Magnetic iron oxide nanoparticles have drawn tremendous attraction from both fundamental aspect as well as applications in biomedicine such as magnetic bio-separation, detection of biological… (more)

Ramesh, R
2012-01-01

100

Physical Properties of Magnetic Macromolecule-Metal and Macromolecule-Metal Oxide Nanoparticle Complexes.

  Open Access Theses and Dissertations

Summary: ??Magnetic nanoparticles are of considerable interest owing to their potential applications in biotechnology and the magnetic recording industry. Iron oxides have received much attention owing… (more)

Zalich, Michael Andrew
2005-01-01

101

Compact zwitterion-coated iron oxide nanoparticles for in vitro and in vivo imaging

  MIT - DSpace

Summary: We have recently developed compact and water-soluble zwitterionic dopamine sulfonate (ZDS) ligand coated superparamagnetic iron oxide nanoparticles (SPIONs) for use in various biomedical applications. The defining ...

Wei, He

102

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

  Materials Science Websites

Summary: Organically Capped Silicon Nanoparticles with Blue Photoluminescence Prepared by Hydrosilylation-emitting silicon nanoparticles that are dispersible in common organic solvents is presented. Oxidation of yellow-emitting silicon nanoparticles with an organic monolayer grafted to their surface, using either UV irradiation

Swihart, Mark T.

103

Observations of oxidation mechanisms and kinetics in faceted FeCo magnetic nanoparticles

  Materials Science Websites

Summary: Fe50Co50 97V2Nb1 nanoparticles were synthesized in an induction plasma torch and oxidizedCo nanoparticles are important materials in biomedi- cal, electromagnetic interference EMI absorption, and other as other materials, while using a lower concentration of the nanoparticles. A high saturation induction

McHenry, Michael E.

104

N-Alkyl-polyethylenimine 2 kDastabilized superparamagnetic iron oxide nanoparticles for MRI cell tracking

  Biology and Medicine Websites

Summary: -targeted Method of detection: Magnetic resonance imaging (MRI) Source of signal / contrast: Superparamagnetic ironN-Alkyl-polyethylenimine 2 kDa­stabilized superparamagnetic iron oxide nanoparticles for MRI cell Chemical name: N-Alkyl-polyethylenimine 2 kDa­stabilized superparamagnetic iron oxide nanoparticles for MRI

Levin, Judith G.

105

Novel application of the CORAL software to model cytotoxicity of metal oxide nanoparticles to bacteria Escherichia coli

  Computer Technologies and Information Sciences Websites

Summary: Novel application of the CORAL software to model cytotoxicity of metal oxide nanoparticles. " The CORAL model for cytotoxicity of metal oxide nanoparticles is demonstrated. " The model is a mathematical Keywords: QSAR CORAL software Cytotoxicity to bacterium Escherichia coli Metal oxide nanoparticle a b s t r

Gini, Giuseppina

106

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

107

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

108

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 experimental results on the photoluminescence (PL) of gas-suspended zinc oxide nan- oclusters prepared during.05.Ys, 78.55.Et, 61.80.Ba. Keywords: Zinc oxide; Nanoclusters; Photoluminescence; Laser ablation. I

Paris-Sud XI, Université de

109

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


110

Biofilm Formation within the Interface of Bovine Root Dentin Treated with Conjugated Chitosan and Sealer Containing Chitosan Nanoparticles.

  Open Access Theses and Dissertations

Summary: ??This study assessed biofilm formation within sealer-dentin interfaces of root segments filled with gutta-percha and zinc oxide sealer incorporated with chitosan nanoparticles, without and with… (more)

DaSilva, Luis
2012-01-01

111

Surfactant Organic Molecules Restore Magnetism in Metal-Oxide Nanoparticle Surfaces

  Materials Science Websites

Summary: Surfactant Organic Molecules Restore Magnetism in Metal-Oxide Nanoparticle Surfaces Juan Salafranca, Nashville, Tennessee 37235, United States *S Supporting Information ABSTRACT: The properties of magnetic nanoparticles tend to be depressed by the unavoidable presence of a magnetically inactive surface layer. However

Pennycook, Steve

112

Correlating catalytic methanol oxidation with the structure and oxidation state of size-1 selected Pt nanoparticles2

  Engineering Websites

Summary: * Corresponding author: roldan@ucf.edu9 Keywords: platinum; methanol oxidation; operando; XAS; EXAFS; alumina of size-selected platinum nanoparticles14 (NPs) prepared by micelle encapsulation and supported on -Al2O3 oxidation is typically achieved6 with platinum and/or palladium, which are able to convert methanol, higher

Kik, Pieter

113

Chronic Impact Of Cerium Oxide Nanoparticles On Solanum Lycopersicum L. And Brassica Rapa L.

  Open Access Theses and Dissertations

Summary: ??Cerium Oxide Nanoparticles (CeO2-NPs) are commonly used in polishing, engine enhancement agents and many other commercial products. Increased applications and accidental release have raised concerns… (more)

Wang, Qiang
2014-01-01

114

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

115

Studies towards DNA-polymer-silica-iron oxide hybrid nanoparticles as stimulus-responsive MR theranostics

  University of California eScholarship Repository

Summary: test to confirm the presence of amine groups on the surface of ironiron oxide nanoparticles functionalized with amine groups. To testtest to confirm the presence of amine groups on the surface of iron

Shuldberg, Claudia Meneses
2012-01-01

116

Photocatalytic Properties of Zinc Selenide/Cadmium Sulfide Core-shell Nanoparticles.

  Open Access Theses and Dissertations

Summary: ??This study investigates the photocatalytic activity of ZnSe/CdS core/shell semiconductor nanocrystals. These nanoparticles exhibit a spatial separation of photoinduced charges between the core and the… (more)

Perera, Jayalath Pathirannehelage Dimuthu Nuwan
2013-01-01

117

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-targeted Target category: Non-targeted Method of detection: Magnetic resonance imaging (MRI) Source of signal

Levin, Judith G.

118

Mercury Removal from Aqueous Systems Using Commercial and Laboratory Prepared Metal Oxide Nanoparticles

  Texas A&M University - TxSpace

Summary: Five commercial metal oxide nanoparticles (CuO, SiO2, Fe2O3, TiO2 and Al2O3) have been individually screened for mercury removal in a batch reactor under bicarbonate buffered and non-buffered aqueous solutions (DI water). Copper oxide...

Desai, Ishan
2010-10-12

119

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

120

Near-critical and supercritical hydrothermal flow synthesis of metal oxide nanoparticles and hybrid metal oxide nanoparticles presenting clickable anchors.

  Open Access Theses and Dissertations

Summary: ??The continuous hydrothermal flow synthesis of functionalized and non-functionalized nanoparticle dispersions was pursued. Besides improving the understanding of the relationship between process variables and the… (more)

Daschner de Tercero, Maren
2014-01-01

121

Effect of temperature and iron-oxide nano-particle inclusions on the ultrasound vaporization pressure of perfluorocarbon droplets for disease detection and therapy

  University of California eScholarship Repository

Summary: Iron-Oxide Nano-particle inclusions on the Ultrasound Vaporization Pressure of Perfluorocarbon Droplets for Disease DetectionIron-Oxide Nano-particle inclusions on the Ultrasound Vaporization Pressure of Perfluorocarbon Droplets for Disease Detectioniron oxide nanoparticle loaded emulsions36. 2.3.2 Acoustic droplet vaporization and microbubble detection.

Amirriazi, Seyed Saleh
2009-01-01

122

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; Martínez, A; Crespo, P; Morales, MP; Fernandez, MA Gonzalez; Valdes, J; Rivero, G
2009-01-01

123

In Situe Synthesis of Iron Oxide within Polyvinylamine nanoparticles

  University of Kansas - KU ScholarWorks

Summary: their function in vivo. The goal of this work has been to develop a unique methodology for synthesizing magnetite within polymer nanoparticle dispersions so that the resultant magnetite-polymer particles may be used in a range of biomedical applications...

Mohammadi, Zahra
2008-07-17

124

Oxide nanoparticles and nanostructured coatings by wet chemical processing.

  Open Access Theses and Dissertations

Summary: ??Non-agglomerated, uniform ZrO2 and Fe2O3 precursor nanoparticles were successfully synthesized via a modified emulsion precipitation (MEP) method. The particles obtained are spherical in shape, ~5… (more)

Shi, Jingyu
2006-01-01

125

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

126

Low temperature growth of amorphous Si nanoparticles in oxide matrix for efficient visible photoluminescence

  Materials Science Websites

Summary: silicon nanoparticles in silicon-rich oxide films. A number density over 1012 /cm2 has been achieved for silicon particles of about 3 nm in size by plasma-enhanced chemical vapor deposition at a substrate. The present results indicate the feasibility of fabricating silicon-based light-emitting devices with moderate

Zexian, Cao

127

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

  Engineering 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

128

DOI: 10.1002/cmdc.200800091 Superparamagnetic Iron Oxide NanoparticleAptamer Bioconjugates for

  Materials Science Websites

Summary: DOI: 10.1002/cmdc.200800091 Superparamagnetic Iron Oxide Nanoparticle­Aptamer Bioconjugates for the diagnosis and treatment of cancer. One of the most promising diagnostic agents is superpara- magnetic iron, and lower detection limit.[19,20] Ferumoxtran-10 (Combidex), a dextran-coated SPION with a mean diameter

Zhang, Liangfang

129

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

  Materials Science Websites

Summary: A Scalable Turbulent Mixing Aerosol Reactor for Oxide-Coated Silicon Nanoparticles Dean M. Holunga particles cm-3 s-1 . Turbulent mixing speeds thermal and chemical transport beyond diffusional limits or multilayered aerosol particles. The turbulence that enables rapid mixing is generated by dissipation of kinetic

Atwater, Harry

130

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

  Materials Science Websites

Summary: , California 91109, USA Silicon nanoparticle-based floating gate metal oxide semiconductor field effect devices an ultraclean two-stage aerosol process reactor and 200 mm wafer deposition chamber in order to integrate Si reserved. Manuscript received October 4, 2000. Nonvolatile memory devices where the floating gate consists

Atwater, Harry

131

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

132

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

  Materials Science Websites

Summary: One-Pot Synthesis of Platinum Nanoparticles Embedded on Reduced Graphene Oxide for Oxygen Reduction 78712-0292, USA b Center for Intelligent Nano-Bio Materials (CINBM), Department of Chemistry and Nano


133

Iron Oxide Nanoparticles Employed as Seeds for the Induction of Microcrystalline Diamond Synthesis

  CiteSeer

Summary: Abstract Iron nanoparticles were employed to induce the synthesis of diamond on molybdenum, silicon, and quartz substrates. Diamond films were grown using conventional conditions for diamond synthesis by hot filament chemical vapor deposition, except that dispersed iron oxide nanoparticles replaced the seeding. X-ray diffraction, visible, and ultraviolet Raman Spectroscopy, energy-filtered transmission electron microscopy, electron energy-loss spectroscopy, and X-ray photoelectron spectroscopy (XPS) were employed to study the carbon bonding nature of the films and to analyze the carbon clustering around the seed nanoparticles leading to diamond synthesis. The results indicate that iron oxide nanoparticles lose the O atoms, becoming thus active C traps that induce the formation of a dense region of trigonally and tetrahedrally bonded carbon around them with the ensuing precipitation of diamondtype bonds that develop into microcrystalline diamond films under chemical vapor deposition conditions. This approach to diamond induction can be combined with dip pen nanolithography for the selective deposition of diamond and diamond patterning while avoiding surface damage associated to diamond-seeding methods.

Gerardo Morell; B. R. Weiner G. Morell; O. Resto; G. Morell; B. R. Weiner

134

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

135

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

136

Chemical Capping Synthesis of Nickel Oxide Nanoparticles and their Characterizations Studies

  CERN Preprints

Summary: This work reports aspect related to chemical capping synthesis of nano-sized particles of nickel oxide. It is a simple, novel and cost effective method. The average particle size, specific surface area, crystallinity index are estimated from XRD analysis. The structural, functional groups and optical characters are analyzed with using of SEM, FTIR and UV- visible techniques. XRD studies confirm the presence of high degree of crystallinity nature of nickel oxide nanoparticles. Their particle size is found to be 12 nm and specific surface area (SSA) is 74m2 g-1. The optical band gap energy value 3.83ev has also been determined from UV-vis spectrum.

rifaya, M Nowsath; Alagar, M; 10.5923/j.nn.20120205.01
2012-01-01

137

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

  Engineering Websites

Summary: MOS diode. By choosing a floating back gate that processes work function higher or lower thanDual gate indium-gallium-zinc-oxide thin film transistor with an unisolated floating metal gate January 2011; accepted 21 March 2011; published online 11 April 2011 In this study, we propose a floating


138

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, oxidation of TPrA at an "inert" electrode, like Pt, Au, or glassy carbon (GC), is known to produce a very


139

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

140

How and why electrostatic charge of combustible nanoparticles can radically change the mechanism and rate of their oxidation in humid atmosphere

  CERN Preprints

Summary: Electrostatically charged aerosol nanoparticles strongly attract surrounding polar gas molecules due to a charge-dipole interaction. In humid air, the substantial electrostatic attraction and acceleration of surrounding water vapour molecules towards charged combustible nanoparticles cause intense electrostatic hydration and preferential oxidation of these nanoparticles by accelerated water vapor molecules rather than non-polar oxygen molecules. In particular, electrostatic acceleration, acquired by surrounding water vapour molecules at a distance of their mean free path from the minimally charged iron metal nanoparticle can increase an oxidative activity of these polar molecules with respect to the nanoparticle by a factor of one million. Intense electrostatic hydration of charged metal nanoparticles converts the nanoparticle's oxide based shells into the hydroxide based electrolyte shells, transforming these nanoparticles into metal/air core-shell nanobatteries, periodically short-circuited by intra-particl...

Meshcheryakov, Oleg
2010-01-01

141

Preparation of amperometric glycated hemoglobin biosensor based on zinc oxide nanoparticles fructosyl amino acid oxidase conjugate; -.

  Open Access Theses and Dissertations

Summary: ??Measurement of HbA1c level in blood provides long-term glucose level in diabetic patients without influence of short-term fluctuations. The existing methods for HbA1C determination including… (more)

Sheetal Chawla
2012-01-01

142

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

  Physics Websites

Summary: ] Such micrometric ZnO-based varistors are widely employed and commercialized to protect electrical equipments discharges such as the ones related to lightning events in aeronautics applications. From a practical point of view, it is usually accepted that the protection voltage is proportional to the number of grain

Paris-Sud XI, Université de

143

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

144

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

  Computer Technologies and Information Sciences Websites

Summary: , formation of oxidized nanocluster fragments produced by the shattering of the shell, combined the formation of nanoclusters due to the shattering of the oxide shell as a mechanism for the extremely high

Southern California, University of

145

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

146

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.

147

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: - 42023, Saint-Etienne, France Running headline: Adsorption/degradation artifacts in toxicity study Biomolecules can be adsorbed on nanoparticles (NP) and degraded during in vitro toxicity assays engineered NP [aluminum oxide hydroxide, AlO(OH)]. The rate of TNF- degradation and its adsorption (on

Boyer, Edmond

148

Zinc Thiolate Reactivity toward Nitrogen Oxides: Insights into the Interaction of Zn[superscript 2+] with S-Nitrosothiols and Implications for Nitric Oxide Synthase

  MIT - DSpace

Summary: Zinc thiolate complexes containing N[subscript 2]S tridentate ligands were prepared to investigate their reactivity toward reactive nitrogen species, chemistry proposed to occur at the zinc tetracysteine thiolate site of ...

Kozhukh, Julia

149

Design of Zinc Oxide Based Solid-State Excitonic Solar Cell with Improved Efficiency

  Texas A&M University - TxSpace

Summary: be improved if amphiphilic dyes are used as surface modifiers [54]. With amphiphilic dyes as the surface modifier, ZnO surface is easier to be wetted by conjugated polymer and thus increase the interfacial area, exciton harvesting, and Jsc. Most recently...O nanorods is over 2 orders of magnitude slower than cells based on ZnO nanoparticles [54]. An amphiphilic dye layer was applied between the ZnO nanostructure and P3HT to optimize interfacial electron transfer and improve the wetting of the ZnO surface...

Lee, Tao Hua
2012-02-14

150

Nanopropeller arrays of zinc oxide Pu Xian Gao and Zhong L. Wanga)

  Materials Science Websites

Summary: semiconduct- ing oxide, has versatile properties that are important for ap- plications in electrical- cations for sensing, microfluidics, electromechnical coupled devices, and transducers. The polar surface. Commercial Alfa Ae- sor ZnO and SnO2 powders as well as graphite with molar ratio of 3:4:1.5 were mixed

Wang, Zhong L.

151

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

  Materials Science Websites

Summary: -blocking layer to enhance the performance of an Earth-abundant metal-oxide solar-cell material. A 5 nm thick-circuit voltage and efficiency enhancements. This work emphasizes the importance of interface engineering under consideration with the potential to reach 20% power conversion efficiency.4,5 Doping this material


152

Synthesis and photoluminescence of Mn-doped zinc sulfide nanoparticles Dongyeon Son, Dae-Ryong Jung, Jongmin Kim, Taeho Moon,

  Materials Science Websites

Summary: with the nonuniform distribution of local strain and the capping effect. The improved photoluminescence properties concentration, the nonuniform distribution of local strain, and the capping effect. The ZnS:Mn nanoparticles/organics and the enhanced crystallinity reduced local strain . © 2007 American Institute of Physics. DOI: 10

Park, Byungwoo

153

Geometrical and Electronic Structure of Metal Oxide Nanoparticles on Silica and Alumina.

  Open Access Theses and Dissertations

Summary: ??Recent studies demonstrated nanometer-scale combustion-generated nanoparticles cause demonstrable health effects. It is essential to understand the chemical characteristics of these nanoparticles. Since combustion-generated nanoparticles arise… (more)

Rodrigo, Udaya Indike
2012-01-01

154

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

  Engineering Websites

Summary: TEM characterization of diblock copolymer templated iron oxide nanoparticles: Bulk solution 7 February 2006 Abstract The morphology of a novel diblock copolymer, poly(norbornene methanol (TEM) using a novel iodine vapor staining method to image the undoped polymer. A lamellar morphology

Kofinas, Peter

155

Polymer-mediated metal and metal oxide nanoparticles: synthesis, characterization and controlled assembly.

  Open Access Theses and Dissertations

Summary: ??Functionalized nanoparticles and their assembly have been the subject of intense recent research activity. The stability and assembly of functionalized nanoparticles are still challenges for… (more)

Bai, Litao
2009-01-01

156

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

157

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

  Materials Science Websites

Summary: for rf heating applications K. N. Collier,1,2 N. J. Jones,1 K. J. Miller,1 Y. L. Qin,1 D. E. Laughlin,1 for polydisperse FeCo magnetic nanoparticles MNPs synthesized using an induction plasma torch. X-ray diffraction the FeCo core and oxide shell. We show HRTEM images of MNP chaining and compare the rf heating of samples

Laughlin, David E.

158

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

159

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

  Nuclear Experiment (arXiv)

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.

V. N. Shlegel; L. Berge; R. S. Boiko; M. Chapellier; D. M. Chernyak; N. Coron; F. A. Danevich; R. Decourt; V. Ya. Degoda; L. Devoyon; A. Drillien; L. Dumoulin; C. Enss; A. Fleischmann; L. Gastaldo; A. Giuliani; M. Gros; S. Herve; I. M. Ivanov; V. V. Kobychev; Ya. P. Kogut; F. Koskas; M. Loidl; P. Magnier; E. P. Makarov; M. Mancuso; P. de Marcillac; S. Marnieros; C. Marrache-Kikuchi; S. G. Nasonov; X. F. Navick; C. Nones; E. Olivieri; B. Paul; Y. Penichot; G. Pessina; O. Plantevin; D. V. Poda; T. Redon; M. Rodrigues; O. Strazzer; M. Tenconi; L. Torres; V. I. Tretyak; Ya. V. Vasiliev; M. Velazquez; O. Viraphong; V. N. Zhdankov
2013-12-12

160

Simulation and Analysis of Cadmium Sulfide Nanoparticles.

  Open Access Theses and Dissertations

Summary: ??I used ab initio molecular dynamics calculations to model cadmium sulfide nanoparticles. The nanoparticles were originaly spherical, bulk-like zinc-blende structures. Constant temperature molecular dynamics calculations… (more)

Junkermeier, Chad Everett
2008-01-01

161

Iron Oxide Nanoparticles and Derivatives for Biomedical Imaging and Application in Cancer Diagnosis and siRNA Therapy

  CiteSeer

Summary: Abstract Our studies have focused on the application of imaging-capable nanoparticulate agents for the delivery of small RNA-based tumor therapy. One example includes magnetic nanoparticles (MN), which have traditionally been utilized as contrast agents for magnetic resonance imaging. The probes typically consist of a dextran-coated superparamagnetic iron oxide core (for magnetic resonance imaging), labeled with Cy5.5 dye (for near-infrared in vivo optical imaging), and conjugated to synthetic small interfering RNA (siRNA) molecules targeting model or therapeutic genes. We have explored the potential of these nanoparticles as delivery modules for small interfering RNA to tumors. Furthermore, we have investigated the feasibility of combining the imaging and delivery capabilities of these nanoparticles for the tracking of siRNA bioavailability. The versatile functionalization potential of MN has allowed us to control properties of the agents, such as uptake mechanism and target organ distribution. The tumoral accumulation of MNsiRNA results in a remarkable level of target-gene down-regulation. Repeated treatment with MN-siBIRC5, targeting the tumor-specific anti-apoptotic gene, birc5, leads to the induction of apoptosis in the tumors and an overall reduction in tumor growth rate. More recently, we have synthesized a second generation of nanoparticles, which combine the capability for high-resolution magnetic resonance imaging with detection by ultrasensitive surface enhanced Raman scattering.

Mehmet V. Yigit; Zdravka Medarova
2011-01-01

162

E4.40.1 Infrared Spectroscopy of Impurities in ZnO Nanoparticles

  CiteSeer

Summary: Semiconductor nanoparticles have a range of potential applications in electronic, optoelectronic and spintronic devices. Zinc oxide (ZnO), a wide-bandgap semiconductor, has emerged as an important material for such applications. In this work, impurities in ZnO nanoparticles were investigated with infrared (IR) spectroscopy, and the results show the presence of CO2 impurities in ZnO nanoparticles. Isotopic substitution was used to verify the frequency assignment and the results demonstrate conclusively that the impurities originate from the precursors. Isochronal annealing experiments were performed to study the formation and stability of the CO2 molecules. In addition to unintentional CO2 impurities, we intentionally introduced hydrogen into ZnO nanoparticles. Our results show that post-growth annealing in hydrogen dramatically changes IR transmission, reflection and electrical properties of the nanoparticles.

W. M. Hlaing Oo; M. D. Mccluskey

163

12. Zinc

  CiteSeer

Summary: 12.1 Role of zinc in human metabolic processes Zinc is present in all body tissues and fluids. The total body zinc content has been estimated to be 30mmol (2g). Skeletal muscle accounts for approximately 60 % of the total body content and bone mass, with a zinc concentration of 1.5–3mmol/g (100–200mg/g), for approximately 30%. The concentration of zinc in lean body mass is approximately 0.46mmol/g (30mg/g). Plasma zinc has a rapid turnover rate and it represents only about 0.l % of total body zinc content. This level appears to be under close homeostatic control. High concentrations of zinc are found in the choroid of the eye (4.2mmol/g or 274mg/g) and in prostatic fluids (4.6–7.7mmol/l or 300–500mg/l) (1). Zinc is an essential component of a large number (>300) of enzymes participating in the synthesis and degradation of carbohydrates, lipids, proteins, and nucleic acids as well as in the metabolism of other micronutrients. Zinc stabilizes the molecular structure of cellular components and membranes and in this way contributes to the maintenance of cell and organ

unknown authors

164

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

  Materials Science 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

165

Effect of zinc oxide nanoparticles in Daphnia magna; Efeito de nanopartículas de óxido de zinco em Daphnia magna.

  Open Access Theses and Dissertations

Summary: ??O rápido desenvolvimento da nanotecnologia com o consequente aumento na produção de nanopartículas e nanoprodutos oferece muitas oportunidades mas também muitos desafios. A nanotecnologia tem… (more)

Lopes, Sílvia Ferreira
2012-01-01

166

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

  Chemistry Websites

Summary: -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, novel ZnO nanobelt arrays were grown directly on zinc substrates by controlled thermal oxidation at high

Qi, Limin

167

The interactions between transition metal nanoparticles and their metal-oxide supports are often critical for heterogeneous metal nanoparticle

  Engineering Websites

Summary: adsorbed on a bridging OH group at the metal- support interface through hydrogen bonding interactions for selective hydrogenations (2, 3), oxidations (3­5), and the water-gas shift (WGS) reaction (3, 6). Several with a primary KIE, indicating O-H(D) bond cleavage in the rate-determining step (RDS). Previous studies on Au

Napp, Nils

168

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.

169

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

170

Nanofabrication, Plasmon Enhanced Fluorescence and Photo-oxidation Kinetics of CdSe Nanoparticles

  Texas A&M University - TxSpace

Summary: by these techniques include the metal nanoparticle arrays, and the self-assembled CdSe nanoring arrays. At the same time, the dissertation provides mechanisms and models to describe the physical and chemical nature of these techniques. The second area of this study...

Chen, Jixin
2011-08-08

171

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

172

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

173

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

174

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

175

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

176

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

177

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

178

CO Oxidation Mechanism on CeO2-Supported Au Nanoparticles Hyun You Kim,*,

  Chemistry Websites

Summary: shown that the surface of CeO2 can easily be enriched with oxygen vacancies15-17 and that Au NPs bind that the surface of CeO2 is enriched with oxygen vacancies. We compare CO oxidation by a Au13 NP supported of the concentration of oxygen vacancies for the CO oxidation activity of CeO2 nanorods, NPs, and the bulk surface.17

Henkelman, Graeme

179

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

180

Electro-oxidation of formate-based solutions on Au/Pd coreeshell nanoparticles e Experiment

  Energy Storage, Conversion and Utilization Websites

Summary: October 2013 Keywords: Coreeshell Au/Pd Formic acid oxidation Simulation In situ Raman a b s t r a c t Au-based solutions. A series of combined studies including Raman spec- troscopy, electrochemical stripping analysis, especially when using concentrated formate solutions. CO stripping test in conjunction with in situ Raman

Liu, Fuqiang

181

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

  Geosciences Websites

Summary: to oxidation and corrosion. Following the pioneering work by Haruta et al. [1], many studies on gold-5]. References [1] Haruta, M.; Kobayashi, T.; Sano, H.; Yamada, N.Chem.Lett.1987, 405 [2] Chen, M. S.; Goodman, D. Am. Chem. Soc. 2006, 128, 6282. [4]Kim, T. S.; Stiehl, J. D.; Reeves, C. T.; Meyer, R. J.; Mullins, C

Thomas, Andrew

182

6)(4)cu-labeled superparamagnetic iron oxide nanoparticles for targeted anticancer drug delivery and pet/mr imaging

  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: 2012.10.10; Accepted: 2012.12.12; Published: 2013.07.31 Stem cells hold great promise for the treatment of multiple human diseases and disorders. Tracking and monitoring of stem cells in vivo after transplantation can supply important information for determining the efficacy of stem cell therapy. Magnetic resonance imaging (MRI) combined with contrast agents is believed to be the most effective and safest non-invasive technique for stem cell tracking in living bodies. Commercial superparamagnetic iron oxide nanoparticles (SPIONs) in the aid of transfection agents (TAs) have been applied to labeling stem cells. However, owing to the potential toxicity of TAs, more attentions have been paid to develop novel SPIONs with specific surface coating or functional moieties which facilitate effective cell internalization in the absence of TAs. This review aims to summarize the recent progress in the design and preparation of SPIONs as cellular MRI probes, to discuss their applications and current problems facing in stem cell labeling and tracking, and to offer perspectives and solutions for the future development of SPIONs in this field.

Li Li; Wen Jiang; Kui Luo; Hongmei Song; Fang Lan; Yao Wu; Zhongwei Gu

183

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

184

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.

185

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.

186

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.

187

Metabolic networks to combat zinc toxicity in Pseudomonas fluorescens Azhar Alhasawi

  Biology and Medicine Websites

Summary: environment. This metabolic shift is critical to counter the oxidative stress triggered by zinc toxicityMetabolic 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

Appanna, Vasu

188

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

189

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 Compaq’s 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 today’s 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)

unknown authors

190

Chapter 5 Zinc deficiency

  CiteSeer

Summary: Research conducted during the past 10–15 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 0–4 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

unknown authors

191

Research Deducing in Vivo Toxicity of Combustion-Derived Nanoparticles from a Cell-Free Oxidative Potency Assay and Metabolic Activation of Organic Compounds

  CiteSeer

Summary: Bac k g r o u n d: The inhalation of combustion-derived nanoparticles (CDNPs) is believed to cause an oxidative stress response, which in turn may lead to pulmonary or even systemic inflammation. Objective a n d Me t h o d s: In this study we assessed whether the in vivo inflammatory response— which is generally referred to as particle toxicity—of mice to CDNPs can be predicted in vitro by a cell-free ascorbate test for the surface reactivity or, more precisely, oxidative potency (Ox Pot) of particles. Results: For six types of CDNPs with widely varying particle diameter (10–50 nm), organic content (OC; 1–20%), and specific Brunauer, Emmett, and Teller (BET) surface area (43–800 m 2 /g), Ox Pot correlated strongly with the in vivo inflammatory response (pulmonary polymorphonuclear neutrophil influx 24 hr after intratracheal particle instillation). However, for CDNPs with high organic content, Ox Pot could not explain the observed inflammatory response, possibly due to shielding of the Ox Pot of the carbon core of CDNPs by an organic coating. On the other hand, a pathway-specific gene expression screen indicated that, for particles rich in polycyclic aromatic hydrocarbon (PAHs), cytochrome P450 1A1 (CYP1A1) enzyme-mediated biotransformation of bioavailable organics may generate oxidative stress and thus enhance the in vivo inflammatory response.

Tobias Stoeger; Shinji Takenaka; Birgit Frankenberger; Baerbel Ritter; Erwin Karg; Konrad Maier; Holger Schulz; Otmar Schmid

192

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

unknown authors
2007-01-01

193

Study of High Temperature Thermal Behavior of Alkyl and Perfluoroalkylsilane Molecules Self-Assembled on Titanium Oxide Nanoparticles

  CERN Preprints

Summary: We have studied high temperature thermal behavior of 1H, 1H, 2H, 2H-Perfluorooctyl-trichlorosilane (FOTS) and Octyltrichlorosilane (OTS) molecules self assembled on titanium dioxide (TiO2) nanoparticles using advanced microscopy and spectroscopy technique such as Scanning Electron Microscope (SEM), Dynamic Light Scattering (DLS), X-Ray Diffraction (XRD) and Fourier Transform Infrared Spectroscopy (FTIR). FOTS SAM and OTS SAM coated TiO2 nanoparticles were heated to different temperature range from room temperature (RT) to 550oC. We characterized nano-microstructure and size distribution of FOTS SAM and OTS SAM coated TiO2 nanoparticles, which were heat-treated to different peak temperatures, using SEM and DLS techniques. The thermal stability and degradation of FOTS SAM and OTS SAM coated TiO2 were carried out using FTIR spectroscopy. We found that FOTS SAM on TiO2 is very stable up to 450oC and OTS on TiO2 is stable up to 250oC. Peak frequency, peak intensity and full width half maxima (FWHM) of symmetric an...

Prakash, P; Devaprakasama, D
2014-01-01

194

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

  Biology and Medicine Websites

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

Rollins, Andrew M.

195

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

196

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

unknown authors

197

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

198

Fluorescent Magnetic Nanoparticles for Biomedical Applications

  Computer Technologies and Information Sciences Websites

Summary: toward HeLa and macrophages cells at a maximum iron concentration of 56 g/ml. are internalized by He. These nanoparticles (NPs) involve superparamagnetic iron oxide nanoparticles (SPIONs), a fluorescently-labeled polymer absorbed onto the iron oxide surface encapsulated within a silica shell. Four different percentages

Candea, George

199

A preliminary study of zinc-catalyzed polycarbonate production

  Texas A&M University - TxSpace

Summary: in recent years due to anticipated resource and environmental problems of fossil fuels. Energy requirements of the industrial age have steadily increased our dependency on the burning of fossil fuels, such as coal. natural gas, and oil. Combustion.... Darensbourg Various reaction conditions were studied in order to optimize polycarbonate production from carbon dioxide and propylene oxide, using an organozinc catalyst, such as zinc glutarate or zinc adipate; CH3 Organozinc + CO2 0 CH, CH ? CH ? 0...

Griffith, Amy Elizabeth
2012-06-07

200

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

  Engineering Websites

Summary: their performances (stress induction, oxidation, substrate warping). VALUE PROPOSITION This novel process offers key Licensing Opportunity UCD's new sintering technology relies on microwave plasma ener- gy to heat and sinter. #12;CONTACT Dr François Pichot Case Manager Technology Transfer t: +353 1 716 3725 e: francois


201

Author's personal copy Atomic layer deposition of iron(III) oxide on zirconia nanoparticles in a fluidized bed

  Chemistry Websites

Summary: of Chemical Engineering, Tecnológico de Monterrey, Mexico a b s t r a c ta r t i c l e i n f o Article history, electrical and magnetic applications. Iron oxide based Fisher­Tropsch synthesis catalysts, along with cobalt

George, Steven M.

202

Increased Hot-Plate Ignition Probability for Nanoparticle-Laden Diesel Fuel

  Mathematics Websites

Summary: by investigating the influence of adding aluminum and aluminum oxide nanoparticles to diesel. As part of this study the influence of adding aluminum and aluminum oxide nanoparticles to diesel fuel on its hot plate ignition

Pacheco, Jose Rafael

203

Evaluation of nanoparticles-based thermotherapy for cancer

  MIT - DSpace

Summary: Under alternating magnetic field, superparamagnetic iron oxide nanoparticles can be used to generate heat for the treatment of cancer. With suitable coating, these nanoparticles are biocompatible, stable in solution, and ...

Wiryaatmadja, Edwina
2007-01-01

204

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

  Condensed Matter (arXiv)

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.

E. Mayoral; E. Nahmad-Achar
2014-02-11

205

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

206

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 42 oxygen reduction and fuel oxidation reactions, these core/shell 43 catalysts are often applied for fuel cell reactions, we noticed 51that Au/FePt3 NPs with a 1.5 nm FePt3 shell showed much 52improved

Wang, Zhong L.

207

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

208

PHYSICAL REVIEW B 84, 064532 (2011) Possibility of electron pairing in small metallic nanoparticles

  Materials Science Websites

Summary: for aluminum, zinc, and potassium nanoparticles containing a few hundred atoms. We find that a large portion, while pairing correlations are not present in the potassium particles. DOI: 10.1103/PhysRevB.84

Lifshitz, Ron

209

Synthesis of vanadium oxide nanostructures for functional applications.

  Open Access Theses and Dissertations

Summary: ??Vanadium oxide nanoparticles have displayed excellent properties in the field of clean energy, environment, and catalysis. Nowadays, the applications of vanadium oxides in catalysts, lithium… (more)

Fu, Haitao
2013-01-01

210

Infrared spectroscopy of ZnO nanoparticles containing CO2 impurities W. M. Hlaing Oo and M. D. McCluskeya

  Physics Websites

Summary: Institute of Physics. DOI: 10.1063/1.1866511 Zinc oxide ZnO is a wide-band gap semiconductor synthesized by a variety of wet-chemistry methods. The use of precursor materials such as zinc acetate, zinc nitrate, or zinc carbonate provides an efficient way to synthesize the ZnO particles.6­8 However, a major

McCluskey, Matthew

211

Di(2-Ethylhexyl) Phthalate Induces a Functional Zinc Deficiency During Pregnancy

  Biology and Medicine Websites

Summary: Di(2-Ethylhexyl) Phthalate Induces a Functional Zinc Deficiency During Pregnancy and Teratogenesis is known to impair fetal zinc (Zn) levels during pregnancy. In this work, we investigated whether target genes include those encoding mitochon- drial and peroxisomal -oxidation enzymes and micro- somal

Omiecinski, Curtis

212

Forces between functionalized silica nanoparticles in solution

  Condensed Matter (arXiv)

Summary: To prevent the flocculation and phase separation of nanoparticles in solution, nanoparticles are often functionalized with short chain surfactants. Here we present fully-atomistic molecular dynamics simulations which characterize how these functional coatings affect the interactions between nanoparticles and with the surrounding solvent. For 5 nm diameter silica nanoparticles coated with poly(ethylene oxide) (PEO) oligomers in water, we determined the hydrodynamic drag on two approaching nanoparticles moving through solvent and on a single nanoparticle as it approaches a planar surface. In most circumstances, acroscale fluid theory accurately predicts the drag on these nano-scale particles. Good agreement is seen with Brenner's analytical solutions for wall separations larger than the soft nanoparticle radius. For two approaching coated nanoparticles, the solvent-mediated (velocity-independent) and lubrication (velocity-dependent) forces are purely repulsive and do not exhibit force oscillations that are typical of uncoated rigid spheres.

J. Matthew D. Lane; Ahmed E. Ismail; Michael Chandross; Christian D. Lorenz; Gary S. Grest
2009-04-16

213

Synthesis and Characterization of Magnetic-Optical Co-Au Core-Shell Nanoparticles Yuping Bao,, Hector Calderon, and Kannan M. Krishnan*,

  Materials Science Websites

Summary: nanoparticles, the biomedical applications of ferromagnetic iron oxide nanoparticles have been intensively is expected to translate into useful and important biomedical/diagnostic applications with enhanced detection

Krishnan, Kannan M.

214

Research paper Novel D-penicillamine carrying nanoparticles for metal chelation therapy

  Biology and Medicine Websites

Summary: -amidating monooxygenase. Yet excessive copper and zinc have deleterious effects in that they contribute to the oxidative the copper storage disease, Wilson's disease, recent attention has focused on the accumulation of zinc-Amyloid; Copper; Aggregates; Resolubilization 1. Introduction The transition metals, copper and zinc, have both

Wisconsin at Madison, University of

215

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: period. Concurrent assaying was done to insure that nanoparticles did not interfere with the colorimetric. Keywords: MRI; molecular imaging; nanoparticles; superparamagnetic agents; cytotoxicity; colorimetric assay assaying: a lactate dehydrogenase assay to determine cytotoxicity and a 3-(4,5-dimethylthiazol-2-yl)-5

Krishnan, Kannan M.

216

Magnetic Force Microscopy (MFM) Characterization of Superparamagnetic Nanoparticles (SPIONs).

  Open Access Theses and Dissertations

Summary: ??Superparamagnetic iron oxide nanoparticles (SPIONs), due to their controllable sizes, relatively long in vivo half-life and limited agglomeration are ideal for biomedical applications such as… (more)

Cordova, Gustavo
2012-01-01

217

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

218

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

219

JOURNAL DE PHYSIQUE Collogue CI, supplement au n 3, Tome 40, mars 1979, page Cl-l'i THE QUADRUPOLE INTERACTION IN ZINC METAL*

  Physics Websites

Summary: of various zinc chalcogenides /2,3/ which all contain the zinc atom in the +2 oxidation state are very large INTERACTION IN ZINC METAL* W. Potzel, A. Forster and G.M. Kalvius Physik Department, Teehn-tsehe Universitat Uunohen, D-8046 Gavdhing, Germany Résumé.- Des spectres Mossbauer du zinc métal ont été obtenus avec la

Paris-Sud XI, Université de

220

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

unknown authors

221

Toward multifunctional nanoparticle-based therapeutics

  University of California eScholarship Repository

Summary: on Surface Oxidation and Cytotoxicity. BSA-coated ZnS-cappedBSA and polyacrylate coatings are unlikely to be the only surface coatings that substantially reduce surface oxidation.BSA 86 , polyacrylate 49 ), typically added to increase the quantum yield and stability of nanoparticles, to decrease the surface oxidation

Derfus, Austin Matthew
2006-01-01

222

Nitrogen doped zinc oxide thin film

  University of California eScholarship Repository

Summary: However, GaN precipitates and forms undesired defects thatGaN has gained a clear edge in optoelectronic applications since 6H-SiC is an indirect bandgap semiconductor and ZnSe forms defectsdefect N O in ZnO. N, on the other hand, reacts with Ga to form GaN.

Li, Sonny X.
2003-01-01

223

Electroless Nanoparticle Film Deposition Compatible with Photolithography,

  Chemistry Websites

Summary: Electroless Nanoparticle Film Deposition Compatible with Photolithography, Microcontact Printing In this paper, we demonstrate that Au, Pd, and Pt nanoparticle films, produced through a spontaneous electroless the alkylated domains. In this case, the germanium oxide dissolves in water,35 leading to intimate electrical

Porter Jr., Lon A.

224

Functionalized nanoparticles Surface Functionalization of Single Superparamagnetic

  Materials Science Websites

Summary: Nanoparticles for Targeted Magnetic Resonance Imaging Esther Amstad, Stefan Zurcher, Alireza Mashaghi, Joyce Y-radiative tech- nique, is thought to lead to cellular or even molecular resolution if optimized targeted MR biocompatibility and low cost of iron oxide nanoparticles render them suitable for many biomedical applications[1


225

Self-assembled nanotube/nanoparticle biosensors.

  Open Access Theses and Dissertations

Summary: ??The self-assembled carbon nanotube (CNT) and indium oxide nanoparticle (INP) multilayers are presented for the applications to electrochemical pH and biological sensing. The excellent electrochemical… (more)

Lee, Dongjin
2010-01-01

226

Assignment of the Zinc Ligands in RsrA, a Redox-Sensing ZAS Protein from Streptomyces coelicolor

  Biology and Medicine Websites

Summary: Assignment of the Zinc Ligands in RsrA, a Redox-Sensing ZAS Protein from Streptomyces coelicolorVised Manuscript ReceiVed May 15, 2006 ABSTRACT: ZAS proteins are widespread bacterial zinc-containing anti but undergoes reversible, intramolecular disulfide bond formation during oxidative stress. This expels

Buttner, Mark

227

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


228

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.

unknown authors

229

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: . The research presented here takes advantage of the fact that nanoparticles have a large fraction of their atoms on the surface making them highly reactive and their small size virtually eliminates the solid-solid diffusion process as the rate limiting step...

Bauer, John C.
2010-07-14

230

Size-Selected Nanoparticle Chemistry: Kinetics of Soot Oxidation Kelly J. Higgins, Heejung Jung, David B. Kittelson, Jeffrey T. Roberts,*, and

  Chemistry Websites

Summary: chemistry and extract surface kinetic rates on size-selected nanoparticles. The method utilizes a tandem differential mobility analyzer (TDMA) technique in which monodisperse particles are selected from a polydisperse aerosol input stream and then subjected to chemical processing. The change in particle size

Zachariah, Michael R.

231

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

232

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.

233

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

234

Stability of ZnMgO oxide in a weak alkaline solution E. Diler1,2

  Physics Websites

Summary: , 29200 Brest, France Abstract Zinc oxide (ZnO) is a chemical compound of great interest used, for example in the experimentally observed enhancement of ZnMgO stability. Keywords: Zinc oxide; ZnMgO Solid solution; Dissolution: + 33 (0)2 98 01 64 39 hal-00655969,version1- #12;2 1. Introduction Zinc oxide (ZnO) is an n-type wide

Paris-Sud XI, Université de

235

Size Optimization of Magnetic Nanoparticles for Biomedical Applications via a Novel Size- Selective Fractionation Process .

  Open Access Theses and Dissertations

Summary: ??Magnetic nanoparticles, especially those composed of iron oxide, are extremely attractive options when it comes to MRI contrast agents and magnetically targeted therapies. Their superparamagnetic… (more)

Rogers, Hunter
2014-01-01

236

(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


237

(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


238

(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


239

(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


240

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


241

(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


242

Formation of ZnCa phyllomanganate nanoparticles in grass roots

  Physics Websites

Summary: to oxidize and pre- cipitate Mn as phyllomanganate. However, this biomineralization has never been shown. Since this biogenic Mn oxide consists mostly of isolated layers, basal 00l reflections are essentially­Zn precipitates by stabilizing organic molecules. Zinc bio- mineralization by plants likely is a defense mechanism


243

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.

unknown authors

244

A Bioinspired Polymeric Template for 1D Assembly of Metallic Nanoparticles,

  Biology and Medicine Websites

Summary: A Bioinspired Polymeric Template for 1D Assembly of Metallic Nanoparticles, Semiconductor Quantum nanoparticles, iron oxide nanoparticles, and quantum dots. We find that the length of the 1D assembly is tunable Dots, and Magnetic Nanoparticlesa Yuhan Lee, Haeshin Lee, Phillip B. Messersmith, Tae Gwan Park


245

An Examination of Co and Fe Core Nanoparticles with a Protecting Shell Zhanhu Guoa,*

  Materials Science Websites

Summary: with concentrated sulfuric acid (12). The annealing process of the SB3-12 stabilized iron nanoparticles was carried by immersing the nanoparticles for over 20 hours in a sulfuric acid solution with a pH value of 1 protect the iron core from oxidation in acidic solution. Introduction Iron-group metallic nanoparticles

Guo, John Zhanhu

246

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

247

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.

248

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

249

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

  Physics Websites

Summary: Trichomes 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 to study biomineralization and metal homeostasis processes in plants. Smoking of tobacco (Nicotiana tabacum


250

Intracellular Delivery of siRNA by Polycationic Superparamagnetic Nanoparticles

  MIT - DSpace

Summary: The siRNA transfection efficiency of nanoparticles (NPs), composed of a superparamagnetic iron oxide core modified with polycationic polymers (poly(hexamethylene biguanide) or branched polyethyleneimine), were studied in ...

Castillo, Betzaida
2012-01-01

251

Characterisation of endogenous KRAB zinc finger proteins 

  Edinburgh, University of - Research Archive

Summary: The Krüppel-associated box (KRAB) zinc finger protein (ZFP) genes comprise one of the largest gene families in the mammalian genome, encoding transcription factors with an N-terminal KRAB domain and C-terminal zinc ...

Crawford, Catherine
2009-01-01

252

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.

253

The catalytic oxidation of propane

  Texas A&M University - TxSpace

Summary: to chemists and engineers for many years* The enormous quantities of these gaseous paraffins available from natural gas, distillate and oil wells has encouraged much research on methods for converting them to valuable organic chemicals* These efforts have... meter before being discarded* The catalysts used were activated alumina and the oxides of silver, copper, nickel, manganese, chromium, cobalt, zinc and iron* These oxides were deposited on both inert type carriers, such as silicon carbide or Aloxite...

Sanderson, Charles Frederick
2013-10-04

254

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

255

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 of caseins, improves its absorption and could prevent inhibition by other nutrients such as iron (Fe/Elsevier, Paris zinc / iron / digestive absorption / caseinophosphopeptide / rat Résumé - Augmentation de l

Boyer, Edmond

256

Rational Design of Zinc Phosphide Heterojunction Photovoltaics

  Biology and Medicine 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

257

(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


258

(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


259

(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


260

(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


261

(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


262

Understanding nanoparticle aggregation.

  Open Access Theses and Dissertations

Summary: ??Nanoparticles form the fundamental building blocks for many exciting applications in various scientific disciplines. However, the problem of the large-scale synthesis of nanoparticles remains challenging.… (more)

Pranami, Gaurav
2009-01-01

263

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 Le´na Saint Renaud, and Bruno Chaudret* 1. Introduction Zinc oxide is characterized by remarkable optical, thermal

Mailhes, Corinne

264

SYNTHESIS OF ZINC FERRITE NANOPOWDERS IN AN RF THERMAL PLASMA , J. Szpvlgyi1

  Materials Science Websites

Summary: SYNTHESIS OF ZINC FERRITE NANOPOWDERS IN AN RF THERMAL PLASMA I. Mohai1 , J. Szépvölgyi1 , J. Gubicza2 1 Research Laboratory of Materials and Environmental Chemistry, Chemical Research Center compositions were produced in an RF thermal plasma from oxide mixtures and from co-precipitated hydroxides

Gubicza, Jenõ

265

Toward active-matrix lab-on-a-chip: programmable electrofluidic control enabled by arrayed oxide thin film transistors

  Engineering Websites

Summary: . An amorphous indium gallium zinc oxide (a-IGZO) semiconductor active layer is used because of its high mobilityToward active-matrix lab-on-a-chip: programmable electrofluidic control enabled by arrayed oxide

Heikenfeld, Jason

266

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

unknown authors
1969-01-01

267

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: 1360S—1366S, 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,

unknown authors

268

Comparison of Decanethiolate Gold Nanoparticles Synthesized by One-Phase and Two-Phase Methods

  Materials Science Websites

Summary: and at the air-water interface by transmission electron microscopy (TEM), X-ray reflectivity (XR), extended X to the enhanced disorder of the one-phase particles. At the air-water interface, the one-phase particles did, and diverse metallic nanoparticles including copper, zinc, nickel, cobalt, iron, rhodium, palladium, platinum

Frenkel, Anatoly

269

DOI: 10.1002/adma.200501918 Multiwalled Carbon Nanotubes Beaded with ZnO Nanoparticles

  Materials Science Websites

Summary: , CNTs keep their morphology and structure even at high nanoparti- cle loadings. Using different methods.[23] The two important building blocks in nanotech- nology, ZnO nanoparticles and CNTs, have rarely (SDS) followed by reaction of zinc acetate with lithium hy- droxide monohydrate in anhydrous ethanol

Wei, Ji

270

CO oxidation on rough Au thin films grown on Si wafer , S.H. Jeong a

  Materials Science Websites

Summary: CO oxidation on rough Au thin films grown on Si wafer H.O. Seo a , S.H. Jeong a , H.J. Lee a , H high catalytic activity of Au nanoparticles for reactions such as low-temperature CO oxidation nanoparticles as heterogeneous catalysts depends on the support and therefore the role of oxide supporting

Boo, Jin-Hyo

271

Versatile Applications of Nanostructured Metal Oxides

  University of Cambridge - Dspace

Summary: with the variations of the applied electric field. Next, the use of metal oxide nanoparticles in enhanced Raman spectroscopy is inves- tigated. Metal oxide nanoparticles with high refractive indices when placed on top of metal surfaces can effectively enhance... system as a sur- face-enhanced Raman scattering substrate. At the junction between an Au nanoparti- cle and an Au film, the electromagnetic field can be enhanced to an extent that single molecules can be detected. The use of such substrates to probe...

Li, Li
2014-05-29

272

Magnetic Susceptibility of NiO Nanoparticles

  Condensed Matter (arXiv)

Summary: Nickel oxide nanoparticles of different sizes are prepared and characterized by x-ray diffraction and transmission electron microscopy. A.C. susceptibility measurements as a function of temperature are carried out for various particle sizes and frequencies. We find that the behavior of the system is spin glass like.

S. D. Tiwari; K. P. Rajeev
2004-08-19

273

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


274

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


275

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


276

A unified approach to understanding conductivity enhancement in nanoparticle-filled solid polymer electrolytes for lithium-ion batteries.

  Open Access Theses and Dissertations

Summary: ??The relationship between structure, polyethylene oxide [PEO] mobility, and ionic conductivity is investigated for the solid polymer electrolyte, PEO/LiClO4, filled and unfilled withAl2O3 nanoparticles. Oxide… (more)

Fullerton Shirey, Susan
2009-01-01

277

Oxide-Dependent Adsorption of a Model Membrane Phospholipid, Dipalmitoylphosphatidylcholine: Bulk Adsorption Isotherms

  Fossil Fuels Websites

Summary: of biofouling,6 control of pyrite toxicity in the environment,19 and in templating controlled nanoparticleOxide-Dependent Adsorption of a Model Membrane Phospholipid, Dipalmitoylphosphatidylcholine: Bulk

Sahai, Nita

278

Synthesis of Graphite Oxide-Fe3O4 Nanocomposites for Rapid and Efficient Removal of Environmental Contaminants.

  Open Access Theses and Dissertations

Summary: ??I. Combined Tween 20-stabilized Gold Nanoparticles and Reduced Graphite Oxide-Fe3O4 Nanoparticle Composites for Rapid and Efficient Removal of Mercury Species in Environmental Water This study… (more)

Shih, Ya-Chen
2014-01-01

279

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

unknown authors

280

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

281

The marine biogeochemistry of zinc isotopes.

  Open Access Theses and Dissertations

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,… (more)

John, Seth G.
2007-01-01

282

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

283

Alternating current electroluminescent properties of zinc sulfide powders.

  Open Access Theses and Dissertations

Summary: ??In order to investigate the alternating current electroluminescent properties of zinc sulfide powders the following experiments were conducted: synthesis of zinc sulfide phosphors (comprised of… (more)

Salimian, Alireza
2012-01-01

284

Copper-induced oxidative stress in three-spined stickleback : relationship with hepatic metal levels

  Physics Websites

Summary: 1 Copper-induced oxidative stress in three-spined stickleback : relationship with hepatic metal- ethoxyresorufin-O-deethylase) and hepatic copper and zinc concentrations. Copper induced a rapid and transient. Significant copper and zinc accumulation in fish liver were observed for the two higher exposure

Paris-Sud XI, Université de

285

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

286

Rational Design of Zinc Phosphide Heterojunction Photovoltaics

  Biology and Medicine 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 to the field of earth-abundant photovoltaics has been indispensable to my work. Greg also made a great mentor

Winfree, Erik

287

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

  Engineering Websites

Summary: of nanoparticles and polymer nanocomposites using DFT studies Zinc sulfide (ZnS) has gained attention in the wide describes the properties of various phases of ZnS bulk. Polymer nanocomposites exhibits various improved filed for polymer nanocomposite, which explains the bulk mechanical and optical properties

Singh, Jayant K.

288

Magnetic Nanoparticle NANOMATERIALS

  Materials Science Websites

Summary: Magnetic Nanoparticle Metrology NANOMATERIALS We are developing best practice metrology for characterization of magnetic nanoparticle systems (e.g. blocking temperature, anisotropy, property distributions, T therapy. The tools provided will enable industry to more effectively design and develop new magnetic


289

TECHNOLOGICAL IMPROVEMENTS OF A METAL OXIDE GAS MULTI-SENSOR BASED ON A MICRO-HOTPLATE STRUCTURE AND INKJET DEPOSI-

  Mathematics Websites

Summary: used in automo- tive domain [5]: copper oxide (CuO), zinc oxide (ZnO) and tin dioxide (SnO2). EachTECHNOLOGICAL IMPROVEMENTS OF A METAL OXIDE GAS MULTI- SENSOR BASED ON A MICRO-HOTPLATE STRUCTURE) micro-hotplate and by three different metal oxides (CuO, ZnO and SnO2) sensing materials deposited


290

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

291

(45) 20090817 (11) 10-0912495

  Physics Websites

Summary: ), (zinc oxide), (zinc peroxide), (zinc perchlorate) (zinc sulfate) (phase + ) . , , . , . (dimethyl zinc), (diethyl zinc), (zinc acetylacetonate), (zinc iodide), (zinc bromide), (zinc chloride), (zinc fluoride), (zinc carbonate), (zinc cyanide), (zinc nitrate

Park, Byungwoo

292

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, Zap1’s 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

unknown authors
2011-01-01

293

(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


294

(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


295

(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


296

(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


297

(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


298

Mechanisms of Electron Transfer in Catalysis by Copper Zinc Superoxide Valeriy V. Smirnov and Justine P. Roth*

  Chemistry Websites

Summary: (ET). Copper zinc superoxide dismutase (SOD) is perhaps the most thoroughly studied member of a family of ET has not been understood, yet this enhanced reactivity is the basis of SOD's protective function against physiological oxidative damage.1 While there is a wealth of structural and mechanistic data on SOD

Roth, Justine P.

299

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


300

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


301

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: of Magnetic Nanoparticle-Based Contrast Agents in Tissues Tracked Using Magnetomotive Optical Coherence assessment of magnetic nanoparticles in tissues. In this study, we demonstrate the use of MM-OCT for quantitative measurement of magnetic iron oxide nanoparticle transport and concentration in ex vivo muscle

Boppart, Stephen

302

RESEARCH Open Access Cytotoxicity and oxidative stress induced by different

  Computer Technologies and Information Sciences Websites

Summary: RESEARCH Open Access Cytotoxicity and oxidative stress induced by different metallic nanoparticles and intracellular levels of reduced and oxidized glutathione revealed that particles induced stress according to their composition, size and solubility. Protein involved in oxidative stress such as NF-b was activated with Zn

Boyer, Edmond

303

Graphene Oxide Thin Films for Flexible Nonvolatile Memory Applications

  Engineering Websites

Summary: Graphene Oxide Thin Films for Flexible Nonvolatile Memory Applications Hu Young Jeong,,[,O Jong Yun electronics applications. Resistive memories based on metal oxide thin films have been extensively studied,12 binary tran- sition metal oxides (such as NiO,13-15 TiO2,16-18 and ZnO19 ), and even Fe3O4 nanoparticle


304

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

305

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


306

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

307

FRONTIERS ARTICLE Single-nanoparticle catalysis at single-turnover resolution

  Chemistry Websites

Summary: a b s t r a c t Understanding the catalytic properties of nanoparticles is fundamentally important transformations for processing petroleum, oxidizing pol- lutants, and converting chemical energy to electricity [1 confinement, nanoparticles of- ten have new or superior catalytic activity, compared with their corresponding

Chen, Peng

308

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 of dexamethasone, which has been shown to be effective in reducing the brain response(ethylene oxide) matrix. The nanoparticles are loaded with dexametha- sone, an anti-inflammatory drug known

Floreano, Dario

309

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

310

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

  Materials Science Websites

Summary: PLGA­lecithin­PEG core­shell nanoparticles for controlled drug delivery Juliana M. Chan drug release Drug delivery Liposome Nanoparticle Polyethylene oxide Self-assembly a b s t r a c that the PLGA­lecithin­PEG core­shell NPs may be a useful new controlled release drug delivery system. Published

Zhang, Liangfang

311

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

Kik, Pieter

312

Laboratory-Scale Burning and Characterizing of Composite Solid Propellant for Studying Novel Nanoparticle Synthesis Methods

  Texas A&M University - TxSpace

Summary: This thesis examines the effects of nanoparticle, metal-oxide additives on the burning rate of composite solid propellants. Recent advancements in chemical synthesis techniques have allowed for the production of improved solid rocket propellant nano...

Allen, Tyler Winston
2013-04-29

313

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

314

Influence of Zinc on Surface Treatments of Aluminium-Zinc Alloys.

  Open Access Theses and Dissertations

Summary: ??This research work studies the influence of zinc on surface treatments such as mechanical polishing, anodic alkaline etching, alkaline etching and electropolishing. Solid-solution binary alloys… (more)

Gentile, Marialuisa
2010-01-01

315

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

unknown authors

316

Synthesis and characterization of zinc oxide nanostructures for piezoelectric applications.

  Open Access Theses and Dissertations

Summary: ??Union between top-down and bottom-up assembly is inevitable when scaling down physical, chemical, and biological sensors and probes. Current sensor/probe-based technologies are firmly founded on… (more)

Hughes, William L.
2006-01-01

317

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

318

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

319

Synthesis and Characterization of Functional Nanostructured Zinc Oxide Thin Films

  Materials Science 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

320

Zinc Oxide and Nitride Nanowire Based Light Emitting Diodes

  University of California eScholarship Repository

Summary: Thin Film LED 54 5.1.1 Device Fabrication thin film LED will first be discussed, including structure, device fabrication,Thin Film LED Characterization .. 56 InGaN Nanowire LED Design. 57 5.2.1 Device Fabrication

Lai, Elaine Michelle
2009-01-01

321

RF sputtered piezoelectric zinc oxide thin film for transducer applications

  Engineering Websites

Summary: Lin � William C. Tang Received: 14 June 2007 / Accepted: 17 September 2007 / Published online: 16 should therefore be limited to 1 lm/h (16 nm/min) [2], which in Y.-H. Hsu Á J. Lin Á W. C. Tang, CA 92697-2715, USA e-mail: wctang@uci.edu W. C. Tang Department of Electrical Engineering

Tang, William C

322

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

323

Zinc Adsorption Effects on Arsenite Oxidation Kinetics at the

  Environmental Management and Restoration Websites

Summary: at the birnessite-water interface were investigated using batch adsorption experiments (0.1 g L-1; pH 4.5 and 6.0; I ) 0.01 M NaCl). Divalent Zn adsorption on synthetic -MnO2 in the absence of As(III) increased

Sparks, Donald L.

324

Piezoelectric Characterization of Individual Zinc Oxide Nanobelt Probed

  Materials Science Websites

Summary: that has been used in microelectromechanical systems (MEMS) as sensors and actuators1 and in communications nanobelt is a promising piezoelectric material for nanosensor and nano- actuator applications due to its) is becom- ing a standard method for the study of ferroelectric and piezoelectric phenomena. The PFM

Wang, Zhong L.

325

Carbon States in Carbon-Encapsulated Nickel Nanoparticles Studied by Means of X-Ray Absorption, Emission, and Photoelectron Spectroscopies

  CERN Preprints

Summary: Electronic structure of nickel nanoparticles encapsulated in carbon was characterized by photoelectron, X-ray absorption, and X-ray emission spectroscopies. Experimental spectra are compared with the density of states calculated in the frame of the density functional theory. The carbon shell of Ni nanoparticles has been found to be multilayer graphene with significant (about 6%) amount of Stone--Wales defects. Results of the experiments evidence protection of the metallic nanoparticles from the environmental degradation by providing a barrier against oxidation at least for two years. Exposure in air for 2 years leads to oxidation only of the carbon shell of Ni@C nanoparticles with coverage of functional groups.

Galakhov, V R; Neumann, M; Ovechkina, N A; Shkvarin, A S; Semenova, A S; Uimin, M A; Yermakov, A Ye; Kurmaev, E Z; Vilkov, O Y; Boukhvalov, D W
2011-01-01

326

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

327

Zinc and prostaglandin interrelationship in metabolism.

  Open Access Theses and Dissertations

Summary: ??Experiments were conducted to investigate the role of prostaglandins (PG) in zinc absorption and biological functions (food intake and weight gain, alkaline phosphatase activity, T-cell-mediated… (more)

Meydani, Simin
1981-01-01

328

Functional Nanoparticles: Synthesis and Application.

  Open Access Theses and Dissertations

Summary: ??Nanoparticles have attracted much attention due to their potential applications in, for example, magnetic recording, optical detection and medical diagnostics. The control of nanoparticle size,… (more)

Fleming, David
2007-01-01

329

Gold Nanoparticles and Drug Delivery.

  Open Access Theses and Dissertations

Summary: ??Nanoparticles are important tools in biotechnology and biomedical research. Gold nanoparticles (AuNPs) have emerged as a particularly important class of nanobiotechnological tools as a result… (more)

Solfiell, David J
2014-01-01

330

Interactions among zinc deficiency, energy restriction, immunity and Heligmosomoides polygyrus (Nematoda) infection in mice.

  Open Access Theses and Dissertations

Summary: ??Interactions among zinc deficiency, energy restriction, immunity and Heligmosomoides polygyrus (Nematoda) infection in mice were investigated. Mice were fed zinc-sufficient (Zn+: 60mg zinc/kg diet), zinc-deficient… (more)

Shi, Hai Ning
1996-01-01

331

Divalent metal nanoparticles .

  Open Access Theses and Dissertations

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… (more)

DeVries, Gretchen Anne
2008-01-01

332

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

333

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

334

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 OxideÃ?Water 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.

335

Particle surface engineering effect on the mechanical, optical and photoluminescent properties of ZnO/vinyl-ester resin nanocomposites

  Materials Science Websites

Summary: as an Advance Article on the web 1st December 2006 DOI: 10.1039/b613286c Zinc oxide (ZnO) nanoparticles and the intimate interfacial interaction through the strong chemical bonding. 1. Introduction Zinc oxide (Zn. The photoluminescent and special electronic properties of zinc oxide provide potential applica- tions of the obtained

Guo, John Zhanhu

336

(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


337

(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


338

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

339

Production of zinc substituted hydroxyapatite using various precipitation routes

  University of Cambridge - Dspace

Summary: pH sufficiently high for the production of stoichiometric hydroxyapatite using a reaction between calcium nitrate, zinc nitrate and ammonium phosphate. X-ray fluorescence (XRF) analysis showed that a significant proportion of the zinc added, did...

Shepherd, David; Best, Serena Michelle
2013-01-01

340

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

341

www.elsevier.com/locate/jcis The feasibility of inert colloidal processing of silicon nanoparticles

  CiteSeer

Summary: Silicon nanoparticles have important applications, including nonvolatile floating-gate memory devices. To prevent device performance variations, particle size and oxide thicknesses need to be controlled with a high degree of precision. Additionally, producing well-ordered, two-dimensional arrays of nanoparticles may require the exploitation of self-assembly techniques and colloidal forces, which in turn requires that silicon nanoparticles first come into contact with liquids. Until recently, aerosol silicon nanoparticle collection into liquid was assumed to be an inert process. Once formed, the silicon nanoparticle colloid was assumed to be inert. In fact, silicon nanoparticles produced in the aerosol phase by dilute silane pyrolysis and size classified with a differential mobility analyzer undergo a size reduction upon collection in ethylene glycol, water, and ethanol. Unclassified polydisperse silicon aerosol nanoparticles with an average diameter of 11 nm become monodisperse when collected in a colloid and have a final particle diameter of 2–5 nm. Further evidence suggests that silicon nanoparticles collected in ethanol react with the ethanol to produce tetraalkylorthosilicate-like species. Collections of aerosol silicon nanoparticles in degassed water do not show measurable differences between the aerosol and colloidal size distributions. This reduced reactivity to the solvent indicates that the presence of dissolved oxygen in the solvent may be responsible for the reactivity between the silicon nanoparticles and the solvent.

Michele L. Ostraat A; Harry A. Atwater B; Richard C. Flagan A
2004-01-01

342

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

343

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

344

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

345

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

346

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

347

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

348

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


349

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

350

REGULAR ARTICLE Grain zinc, iron and protein concentrations

  Computer Technologies and Information Sciences Websites

Summary: , and particularly deficiency in zinc (Zn) and iron (Fe), afflicts over three billion people worldwide, and nearlyREGULAR ARTICLE Grain zinc, iron and protein concentrations and zinc-efficiency in wild emmer wheat half of the world's cereal-growing area is affected by soil Zn deficiency. Wild emmer wheat [Triticum

Yanikoglu, Berrin

351

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

352

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


353

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

354

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.

355

Topic (PIS) Code : OMNO Presentation Preference : Oral (invited) IN-SITU GROWN ERBIUM-DOPED DIELECTRIC NANOPARTICLES IN SILICA-

  Physics Websites

Summary: , B. Dussardier and M.C. Paul, « Er- doped oxide nano-particles in silica-based optical fibers-DOPED DIELECTRIC NANOPARTICLES IN SILICA- BASED TRANSPARENT OPTICAL FIBERS Bernard Dussardier, Wilfried Blanc.dussardier@unice.fr Abstract: An efficient method to fabricate transparent glass ceramic fibers containing in-situ grown Er3

Paris-Sud XI, Université de

356

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

357

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

  Engineering Websites

Summary: Pt nanoparticles supported on a series of oxide powders. The samples tested may be roughly grouped [11]. Dam al. [12] have shown that Pt dissolution in fuel cells reaches a saturation level due of PtO and Pt dissolution [14]. In a previous work [15], we have shown that Pt nanoparticles supported

Kik, Pieter

358

Electrodeposition of Zinc From Low Temperature Molten Salt Electrolyte: Part I-Imidazole And Zinc-Chloride Electrolyte

  CiteSeer

Summary: Abstract: Our R & D work was focused on the electro deposition of Zinc from imidazole as low temperature molten salt (LTMS) electrolyte with zinc chloride as a supporting salt at <100º C., without required controls from the previous existing non aqueous baths as well additive free system for the zinc deposition. Surface morphological studies and crystallographic orientation results were evaluated.

Shanmugasigamani Srinivasan; M. Selvam

359

Photovoltage Effects of Sintered IrO2 Nanoparticle Catalysts in Water-Splitting Dye-Sensitized Photoelectrochemical Cells

  Chemistry Websites

Summary: Photovoltage Effects of Sintered IrO2 Nanoparticle Catalysts in Water-Splitting Dye University, University Park, Pennsylvania 16802, United States *S Supporting Information ABSTRACT: Water functionalized with light absorbing sensitizers and water oxidation catalysts. Because water splitting requires


360

Raman scattering and photoluminescence from Si nanoparticles in annealed SiOx thin films

  Materials Science Websites

Summary: Physics, D-06120 Halle, Germany Received 20 November 2001; accepted for publication 11 July 2002 Silicon-rich silicon oxide thin films have been prepared by thermal evaporation of silicon monoxide in vacuum. The Si nanoparticles in Si-rich silicon oxide films are generally produced by high-temperature annealing in an inert

Polman, Albert

361

RESEARCH PAPER A mathematical model of superparamagnetic iron oxide

  Biology and Medicine Websites

Summary: RESEARCH PAPER A mathematical model of superparamagnetic iron oxide nanoparticle magnetic behavior / Accepted: 31 October 2012 Ã? Springer Science+Business Media Dordrecht 2012 Abstract Superparamagnetic iron Introduction The use of small iron oxide particles as a laboratory or diagnostic tool has been practiced


362

NANO EXPRESS Open Access An effective oxidation approach for luminescence

  Materials Science Websites

Summary: NANO EXPRESS Open Access An effective oxidation approach for luminescence enhancement in Cd on the photoluminescence (PL) properties of CdS nanoparticles oxidized by straightforward H2O2 injection were examined. Compared to pristine cadmium sulfide nanocrystals (quantum efficiency 0.1%), the surface-passivated Cd

Park, Byungwoo

363

Connecting oxidative stress, auxin, and cell cycle regulation through a plant mitogen-activated

  Biology and Medicine Websites

Summary: Commentary Connecting oxidative stress, auxin, and cell cycle regulation through a plant mitogen sequences involved in Src homology 3 binding, zinc finger motifs, leucine zippers, and binding sites for G stress MAPKs, AtMPK3, and AtMPK6. H2O2 is a well- known product of oxidative stress playing multiple

Hirt, Heribert

364

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 reduced BAEC-induced LDL oxidation by 79%. To determine whether the intracellular SOD content can have a similar protective effect, BAECs were infected with adenoviral vectors containing cDNA for human Cu/ZnSOD

Engelhardt, John F.

365

The effect of dietary zinc on the hypothalamo-adenohypophyseal-thyroid axis of male broiler chickens

  Texas A&M University - TxSpace

Summary: CHAPTER 1X Xll INTRODUCTION REVIEW OF LITERATURE III Introduction Marginal Zinc Deficiency Human Dietary Zinc Requirements The True Zinc Requirement Factors Affecting Zinc Absorption Indicators of Marginal Zinc Status DNA Synthesis and Cell... countries (1). Classical clinical features of chronically zinc-deficient subjects include growth retardation, hypogonadism in males, poor appetite, mental lethargy, and skin lesions (1). Severe zinc defi- ciency is rare in industrialized nations, however...

Dean, Carlton E.
2012-06-07

366

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 µg/dL), of which 33.8 % had levels of plasma zinc below 60 µg/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.

unknown authors

367

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 degradation–apoptotic or autophagic –is chosen by cells.”

unknown authors

368

Impact of Nanoparticle On Enzymes Activity In

  CiteSeer

Summary: Abstract: Toxicity of Titanium dioxide nanoparticles (TiO2-NPs) to freshwater fish, Oreochromis mossambicus is assessed in this work. The endpoint of this study has focussed the disturbances in the vital enzyme profile of fish exposed to TiO 2-NPs. Superoxide dismutase (SOD), Catalase (CAT), Peroxidase (POD) and Lipid per Oxidation (LPO) levels in brain, gill and liver tissues of tilapia were analysed and observed that these values were concentration and duration dependent. The results obtained in this study have projected a statistically significant decrease (P < 0.05) in SOD, CAT and POD activities and an increase (P < 0.05) in LPO levels in selected tissues of fish exposed to 50, 100 and 150 ppm TiO2-NPs. Further, this finding suggests that there is an oxidative stress in fish. Moreover, the depletion of antioxidant enzymes activities and the elevation of LPO in liver tissue are higher indicating that the liver might be the most susceptible organ to TiO 2-NPs exposure. Thus hepatotoxicity is underlined in this work. Key words: TiO2 nanoparticles; tilapia; sub-acute toxicity; oxidative stress, antioxidant enzymes. 1.

Oreochromis Mossambicus; M. Karthigarani; Dr. P. S. Navaraj

369

Polymer Protected Gold Nanoparticles.

  Open Access Theses and Dissertations

Summary: ??Polymer protected gold nanoparticles have successfully been synthesized by both "grafting-from" and "grafting-to" techniques. The synthesis methods of the gold particles were systematically studied. Two… (more)

Shan, Jun
2006-01-01

370

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

371

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

372

Polyaniline-tungsten oxide metacomposites with tunable electronic Jiahua Zhu,a

  Materials Science Websites

Summary: Polyaniline-tungsten oxide metacomposites with tunable electronic properties Jiahua Zhu,a Suying reinforced with tungsten oxide (WO3) nanoparticles (NPs) and nanorods (NRs) are fabricated via a facile, a multicolor tungsten oxide (WO3)/PANI nano- composite film is fabricated using a double-pulse electrodeposi

Guo, John Zhanhu

373

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

374

215High performance gas sensing materials based on nanostructed metal oxide films Corresponding author: G. Kiriakidis, e-mail: kiriakid@iesl.forth.gr

  Materials Science Websites

Summary: -sensing properties of Indium and Zinc oxides as a semiconductor gas sensor have been investi- gated. It was found], and therefore can be used in de- tectors for these gases. It was also found that dop- ing indium oxide with Mn+2 divalent- ion-doped indium oxide films as humidity sensors [5,6]. #12;216 G. Kiriakidis, M. Suchea, S


375

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

unknown authors
2011-01-01

376

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

  Biology and Medicine 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

377

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.

378

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

379

Temperature Dependence of Cation Distribution and Oxidation State in Magnetic Mn-Fe Ferrite Nanocrystals

  Materials Science Websites

Summary: 37831-6393 ReceiVed September 2, 1997 Abstract: The magnetic properties of spinel nanoparticles distribution and oxidation state of Mn-Fe spinel nanoparticles have been systematically studied at various temperatures by using neutron diffraction and electron energy loss spectroscopy, respectively. The Mn-Fe spinel

Wang, Zhong L.

380

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

  Chemistry Websites

Summary: the rational design of a binary metallic nanocatalyst based on a shaped nanoparticle seeding concept. Clavilier et al. studied the electro-oxidation of formic acid for Pd adsorbed on a Pt(100) single crystal-defined surface of Pt nanoparticles. Pt nanocubes fully bound by (100) surfaces acted as seeds for overgrowth

Yang, Peidong

381

Preparation of Cadmium Selenide-Polyolefin Composites from Functional Phosphine Oxides and Ruthenium-Based

  Chemistry Websites

Summary: Preparation of Cadmium Selenide-Polyolefin Composites from Functional Phosphine OxidesVersity of Massachusetts, Amherst, Massachusetts 01003 Received November 21, 2001 Abstract: Cadmium selenide nanoparticles by employing more easily handled cadmium sources, such as CdO. Both methods give well-defined nanoparticles


382

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

383

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

unknown authors

384

Nanoparticle Safety and Health Guidelines

  CiteSeer

Summary: The purpose of this document is to outline safety and health guidelines for the safe handling and disposal of nanoparticles utilized or generated during research projects. This document is intended to provide guidance for small scale laboratory projects. DEFINITIONS AND BACKGROUND The ASTM Committee on Nanotechnology has defined a nanoparticle as a particle with lengths in two or three dimensions between 1 and 100 nanometers (nm). Nanoparticles can be composed of many different base materials and may be of different shapes including: nanotubes; nanowires; and crystalline structures such as fullerenes and quantum dots 1. Nanoparticles present a unique challenge from an occupational health perspective as there is a limited amount of toxicological data currently available for review. However, some studies have shown that existing exposure control technologies have been effective in reducing exposure to nanoparticles. As such, the accepted exposure control hierarchy was utilized in the development of this document. EXPOSURE PATHWAYS AND COMMON TASKS THAT COULD RESULT IN EXPOSURE The primary routes of exposure for nanoparticles are inhalation, dermal absorption, and ingestion. Nanoparticles or nanomaterials used in laboratory experiments will likely be in one of three forms: a powder, in suspension, or in a solid matrix. The form of the nanoparticles or nanomaterial will play a large role in the exposure potential. For example, a nanoparticle in powdered form will present a larger inhalation hazard potential than a nanoparticle in suspension. Some common tasks that present some potential for exposure include 2: • Working with nanoparticles in suspension without gloves; • Working with nanoparticles in suspension during pouring or mixing where agitation is involved; • Generating nanoparticles in the gas-phase; • Handling nanoparticle powders; • Maintenance on equipment used to produce nanoparticles; • Cleaning up spills or waste material; • Cleaning dust collection systems; and • Machining, sanding, grinding, or mechanically disturbing nanomaterial which can generate an aerosol. METHODS OF EXPOSURE CONTROL The established hierarchy of exposure controls for nanoparticles is consistent with existing exposure control options for hazardous chemicals. The exposure control methods are summarized in Table 1.

unknown authors
2010-01-01

385

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

  Chemistry Websites

Summary: -8% of SnO2 before a second phase is formed.10-12 Zinc oxide, ZnO, which forms a series of layered compoundsZinc Doping in Cosubstituted In2-2xSnxZnxO3- A. Ambrosini, S. Malo, and K. R. Poeppelmeier The cosubstituted solid solution In2-2xSnxZnxO3- was acceptor-doped with Zn2+ to form In2-x-ySnxZnyO3- (y > x). A 4

Poeppelmeier, Kenneth R.

386

Fabrication, characterization and microwave properties of polyurethane nanocomposites reinforced with iron oxide and barium titanate

  Materials Science Websites

Summary: Fabrication, characterization and microwave properties of polyurethane nanocomposites reinforced (PU) nanocomposites reinforced with magnetic iron oxide nanoparticles and/or dielectric barium a different effect on the thermal stability of the polymer nanocomposites. By embedding different func- tional

Guo, John Zhanhu

387

Hydrogen Oxidation and Evolution Reaction Kinetics on Platinum: Acid vs Alkaline Electrolytes

  MIT - DSpace

Summary: The kinetics of the hydrogen oxidation reaction (HOR) and hydrogen evolution reaction (HER) on polycrystalline platinum [Pt(pc)] and high surface area carbon-supported platinum nanoparticles (Pt/C) were studied in 0.1 M ...

Sheng, Wenchao

388

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, Université de

389

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

unknown authors
2005-01-01

390

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

  Materials Science Websites

Summary: Heo,1,2 Sang Bok Kim,1 and Roy G. Gordon1,a) 1 Department of Chemistry and Chemical Biology, Harvard that are deactivated, for example, by imprint lithography.15,16 Thus films can be patterned without any etching step. This patterning process is superior to con- ventional etching or lift-off in that no coating material is wasted


391

Phase Relationships and Physical Properties of Homologous Compounds in the Zinc OxideIndium Oxide System

  Chemistry Websites

Summary: Equilibrium phase relationships in the ZnO­In2O3 system were determined between 1100° and 1400°C using solid- state reaction techniques and X-ray diffractometry. In ad- dition to ZnO and In2O3, nine homologous, and lower cost are desired. There have been sev- eral recent reports of thin-film TCOs in the ZnO­In2O3

Poeppelmeier, Kenneth R.

392

Synthesis and Characterization of Zinc Thiosalen Derived Complexes.

  Open Access Theses and Dissertations

Summary: ??In this study, we took four diamines of different carbon chain lengthes to synthesize several thiosalen derived zinc(II) complexes, i.e. N, Nâ-Bis- (2-thio-benzylidene)- 1,3-propylenediaminato-zinc(II)(1),N,Nâ-Bis(2-thio-benzylidene)-2,2-dimethyl- 1,3-propylenediaminato-zinc(II)(2),N,Nâ-Bis-(2-thio-benzylidene)-1,2-ethylene-… (more)

Lin, Chia-hui
2012-01-01

393

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

394

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

395

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

396

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.

397

High temperature and high pressure cobalt cementation onto zinc dust.

  Open Access Theses and Dissertations

Summary: ??Trace amounts of electrolyte cobalt during zinc electrowinning (EW) significantly decrease the current efficiency of the EW process by accelerating the parasitic hydrogen evolution reaction.… (more)

Zaheri, Shahram
2015-01-01

398

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

399

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

400

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, Iñigo; Gonzalo, Ramón; Ziolkoski, Richard W
2015-01-01

401

Research Effects of Airway Exposure to Nanoparticles on Lung Inflammation Induced by Bacterial Endotoxin in Mice

  CiteSeer

Summary: BACKGROUND: Although adverse health effects of particulate matter with a diameter of < 100 nm (nanoparticles) have been proposed, molecular and/or experimental evidence for their facilitation of lung inflammation in vivo is not fully defined. OBJECTIVE: In the present study we investigated the effects of nanoparticles on lung inflammation related to bacterial endotoxin [lipopolysaccharide (LPS)] in mice. RESULTS: We intratracheally administered vehicle, two sizes (14 nm, 56 nm) of carbon black nanoparticles (4 mg/kg), LPS (2.5 mg/kg), or LPS plus nanoparticles and evaluated parameters for lung inflammation and coagulation. Nanoparticles alone induced slight lung inflammation and significant pulmonary edema compared with vehicle. Fourteen-nanometer nanoparticles intensively aggravated LPS-elicited lung inflammation and pulmonary edema that was concomitant with the enhanced lung expression of interleukin-1? (IL-1?), macrophage inflammatory protein-1? (MIP-1?), macrophage chemoattractant protein-1, MIP-2, and keratinocyte chemoattractant in overall trend, whereas 56-nm nanoparticles did not show apparent effects. Immunoreactivity for 8-hydroxyguanosine, a marker for oxidative stress, was more intense in the lungs from the LPS + 14-nm nanoparticle group than in those from the LPS group. Circulatory fibrinogen levels

Ken-ichiro Inoue; Hirohisa Takano; Rie Yanagisawa; Seishiro Hirano; Miho Sakurai; Akinori Shimada; Toshikazu Yoshikawa

402

Effect of pH, phosphorus, and water-extractable zinc of soil on plant growth and zinc absorption

  Texas A&M University - TxSpace

Summary: EFFECT OF pH~ PHOSPHORilS, AND WATER-EXTRACTABLE ZINC OF SOIL ON PLANT GROWTH AND ZINC ABSORPT1ON A Thesis Najafali Karimian Submitted to the Graduate College cf Texas ARM University in partial fulfillment of the requirement for the degree... of MASTER OF SCIENCE December 1970 Major Sub ject: Soil Chemistry EFFECT OF pH, PHOSPHORUS, AND WATER-EXTRACTABLE ZINC OF SOIL ON PLANT GROWTH AND ZINC ABSORPTION A Thesis by NajafaIi Karimian Approved as to sty1e and content by: Chairman Committee...

Karimian, Najafali
2012-06-07

403

Abstract No. pan0505 Sorption of Heavy Metal Contaminants onto Hydrated Ferric Oxides: Mechanistic Modeling using X-ray

  Environmental Management and Restoration Websites

Summary: Abstract No. pan0505 Sorption of Heavy Metal Contaminants onto Hydrated Ferric Oxides: Mechanistic) Beamline(s): X11A Introduction: Iron oxides are ubiquitous in soils and aquatic sediments as discrete the fate of heavy metal contaminants, such as lead, zinc, and nickel in soils and aquatic environments

Sparks, Donald L.

404

SnO2 atomic layer deposition on ZrO2 and Al nanoparticles: Pathway to enhanced thermite materials

  Chemistry Websites

Summary: the oxidizer directly onto nanometer-sized fuel particles. This study investigates the atomic layer depositionSnO2 atomic layer deposition on ZrO2 and Al nanoparticles: Pathway to enhanced thermite materials J with improved contact between the fuel and oxidizer can provide increased reaction rates compared

George, Steven M.

405

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. Scarcity of water is leading to a shift from flooded to aerobic rice production, which can have an impact

Paris-Sud XI, Université de

406

Three-dimensionalimage oftubulinin zinc-inducedsheets, reconstructed

  Biology and Medicine Websites

Summary: for microtubule reassembly'.`. The projected structure of the zinc-induced sheets in 0141 x130, 79 040146 11, but that the protofilaments are arranged with alternating polarity. rather than all having the same longitudinal polarity as in a microtubule'. In fact, a zinc-induced sheet has P2, symmetry, with screw dyad axes in the central plane

Baker, Timothy S.

407

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

408

Original article Comparative relationship between copper-zinc plasma

  Physics Websites

Summary: on the plasma zinc concentration in the camels in spite of the low observed values. The mean erythrocyte SOD and erythrocyte SOD activity. In cows, a positive relationship was observed between plasma zinc concentration and SOD activity (r = 0.396). In contrast, a negative relationship was found in camels (r =-0

Paris-Sud XI, Université de

409

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 (30–60 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.

unknown authors

410

Electron Dynamics in Metallic Nanoparticles M. Aeschlimann

  Physics Websites

Summary: Electron Dynamics in Metallic Nanoparticles M. Aeschlimann Department of Physics, University nanoparticles are discussed in the light of the results of line width measurements and femtosecond pump...............................................................................................................3 II. ADSORPTION OF LIGHT IN METALLIC NANOPARTICLES...................................4 A. General

Bauer, Michael

411

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

412

Molecular Crystallization Directed By Nanoparticles And Nanopatterns.

  Open Access Theses and Dissertations

Summary: ?? This dissertation focuses on nanoparticle/nanopattern-induced molecular self-assembly and crystallization. We propose a universal strategy to synthesize organic/inorganic hybrid nanostructures using inorganic nanoparticles and nanoparticle… (more)

Li, Li
2013-01-01

413

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

414

Silicon nanoparticle sysnthesis through thermal catalytic pyrolysis.

  Open Access Theses and Dissertations

Summary: ??Nanoparticles are considered as fundamental building blocks of nanotechnology and, silicon nanoparticles in particular, will form the basis of applications in single electron transistors, floating… (more)

Scriba, Manfred R.
2006-01-01

415

Patterns and instabilities in colloidal nanoparticle assemblies.

  Open Access Theses and Dissertations

Summary: ??Colloidal nanoparticles exhibit unusual individual and collective behaviour, often associated with interesting electrical, optical or electromagnetic properties. Thiol-passivated colloidal gold nanoparticles possess in addition a… (more)

Pauliac-Vaujour, Emmanuelle
2008-01-01

416

MAGNETIC NANOPARTICLES: SYNTHESIS, CHARACTERIZATION AND APPLICATIONS.

  Open Access Theses and Dissertations

Summary: ??A wide range of metal, magnetic, semiconductor, and polymer nanoparticles with tunable sizes and properties can be synthesized by straightforward wet-chemical techniques. Magnetic nanoparticles are… (more)

Latham, Andrew
2008-01-01

417

RF/microwave absorbing nanoparticles and hyperthermia.

  Open Access Theses and Dissertations

Summary: ??The primary purpose of this work was to evaluate the capability of nanoparticles to transform electromagnetic energy at microwave frequencies into therapeutic heating. Targeted nanoparticles,… (more)

Cook, Jason Ray
2010-01-01

418

Solution Phase Syntheses of Nanoparticles and Nanowires.

  Open Access Theses and Dissertations

Summary: ??This thesis is concerned with the preparation of metal and semiconductor nanostructures in solution, specifically bismuth and indium metal nanoparticles, gallium nitride nanoparticles, indium phosphide… (more)

Lim, Teck Hock
2008-01-01

419

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

420

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

  CiteSeer

Summary: Abstract—Silver 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

Seungkyu Shin; Jeong Hyub Ha; Sung Han; Jihyeon Song

421

Dopants in nanoscale ZnO Matthew D. McCluskey,1

  Physics Websites

Summary: Washington State University, Pullman, WA 99164-2814 ABSTRACT Zinc oxide (ZnO) is a metal-oxide semiconductor]. These issues are especially important in ZnO, a wide-bandgap metal-oxide semiconductor [2] that has attracted Nanoparticles were produced by the chemical reaction of zinc acetate dihydrate with sodium hydrogen carbonate

McCluskey, Matthew

422

Functional nanoparticles: synthesis and simulation.

  Open Access Theses and Dissertations

Summary: ??Functional nanoparticles have garnered considerable attention due to their intriguing physical properties at the nanoscale for a broad range of applications, such as photocatalysis, capacitive… (more)

Wan, Congshan
2014-01-01

423

Glyconanobiotics: Novel carbohydrated nanoparticle polymers.

  Open Access Theses and Dissertations

Summary: ??Carbohydrates on the cell surface conjugates to proteins and lipids and participates in biological processes as glycoconjugates. Carbohydrate functionalized nanoparticles (glyconanoparticles) constitute a good bio-mimetic… (more)

Abeylath, Thotaha Wijayahewage Sampath Chrysantha
2007-01-01

424

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

425

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


426

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


427

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

428

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.

429

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

430

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

  Geosciences Websites

Summary: Characterisation of non-sulphide zinc deposits using QEMSCANÃ? Gavyn K. Rollinson a, , Jens C February 2011 Available online xxxx Keywords: Non-sulphide zinc Mineralogy QEMSCANÃ? 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

431

Genome-wide characterization of the Zap1p zinc-responsive regulon in yeast

  Biology and Medicine Websites

Summary: in response to zinc deficiency. Previ- ously known Zap1p-regulated genes encode the Zrt1p, Zrt2p, and Zrt3p% of S. cerevisiae proteins contain zinc-dependent DNA binding domains (5, 6). After iron, zinc is the most abundant trace element in the human body (4). Although severe zinc deficiency is uncommon among

Botstein, David

432

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

  Chemistry 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.

433

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.

434

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

435

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

  Chemistry Websites

Summary: .96), and -Zr(HPO4)2·H2O. High surface area SiO2 and -Al2O3 supports were also used for comparison in the ITC, biomedical implants and sensors, fuel cell catalysis, photocatalysis, and heterogeneous catalysis.1-5 Many


436

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

437

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

438

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

439

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

  Physics Websites

Summary: Theoretical Investigation Giuseppe Mattioli,a Francesco Filippone,a Paola Alippi,a Paolo Giannozzi,b and Aldo of Chemistry, Physics and Environment, University of Udine, via delle Scienze 208, 33100 Udine, and DEMOCRITOS

Giannozzi, Paolo

440

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

441

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


442

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'Ã?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

443

Zinc levels in hair of pre-adolescent females

  Texas A&M University - TxSpace

Summary: ZINC LEVELS IN HAIR OF PRE-ADOLESCENT FEMALES A Thesis by CHERYL FRICXE EARP Submitted to the Graduate College of Texas AEcM University in partial fulfillment of the requirement for the degree of MASTER OF SCIENCE December 197S Major... Subject: Biochemistry ZINC LEVELS IN HAIR OF PRE-ADOLESCENT FEMALES A Thesis by CHERYL FRICKE EARP Approved as to style and content by: Chairman of Committee Heed of Depar ment Member ember e er December 1978 ABSTRACT Zinc Levels in Hair...

Earp, Cheryl Fricke
2012-06-07

444

Instructions for use CO oxidation on h-BN supported Au atom

  Geosciences Websites

Summary: synthesis of hydrogen peroxide, alkene epoxidation, etc.2­10 The catalytic properties of gold are strongly. INTRODUCTION Since the pioneering work of Haruta on oxidation of car- bon monoxide by small gold nanoparticles supported by metal oxides1 it has become clear that gold can exhibit high catalytic activity in various

Tsunogai, Urumu

445

Characterization of hydrous ruthenium oxide/carbon nanocomposite supercapacitors prepared by a colloidal method

  Energy Storage, Conversion and Utilization Websites

Summary: that of activated carbon based electrochemical double layer capacitor [2]. However, the high material cost of RuO2Áx electro- chemical capacitor consisting of hydrous ruthenium oxide nanoparticles dispersed within for an electrochemical capacitor based on hydrous ruthenium oxide electrodes, which includes both double layer

Popov, Branko N.

446

http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-67918 Growth of Gd2O3 nanoparticles inside mesoporous silica frameworks

  CiteSeer

Summary: Gadolinium oxide (Gd2O3) nanoparticles with very small size and narrow size distribution were synthesized by infiltration of Gd(NO3)3·6H2O as an oxide precursor into the pores of SBA-15 mesoporous silica using a wet-impregnation technique. High resolution transmission electron microscopy and X-ray diffraction show that during the hydrothermal treatment of the precursor at 550 °C, gadolinium oxide nanoparticles inside the silica pores are formed. Subsequent dissolution of the silica framework in aqueous NaOH resulted in well dispersed nanoparticles with an average diameter of 3.6 ± 0.9 nm. If GdCl3·6H2O is used as precursor, GdOCl is formed instead of Gd2O3. The Gd2O3 nanoparticles showed a weak antiferromagnetic behaviour, as expected.

Mohamed A. Ballem; Fredrik Söderlind; Per Nordblad; Per-olov Käll; Magnus Odén; Mohamed A. Ballem; Fredrik Söderlind; Per Nordblad; Per-olov Käll; Magnus Odén; Mohamed Ali Ballem A; Fredrik Söderlind A; Per Nordblad B; Per-olov Käll C; Odén A

447

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

  Chemistry Websites

Summary: potentials provides extra stability toward oxidative degradation for halogenated porphyrins. Thus-state spectral (100 nm for the Q band) and oxidation (550 mV) potential shifts.3 The increase in oxidation and intensity induced by -halo- genation, meso-tetraphenylation, and geometry distortion. Be- cause our interest

Tretiak, Sergei

448

Formation Mechanism of Pt Single-Crystal Nanoparticles in Proton Exchange Membrane Fuel Cells

  Materials Science Websites

Summary: of a proton exchange membrane PEM fuel cell consist of an anode for hydrogen oxidation, a cathode for oxygen in PEM fuel cells to posi- tions within the cathode and membrane-cathode interface. This work provides a deeper understanding of the formation mechanism of Pt nanoparticles in the PEM fuel cell cathode, which

Ferreira, Paulo J.

449

Biomimetic Synthesis of Noble Metal Nanoparticles and Their Applications as Electro-catalysts in Fuel Cells

  University of California eScholarship Repository

Summary: GRAPHENE OXIDE (RGO)/CARBON BLACK (CB) COMPOSITE .. 139 Introduction .. 139 Experimental 140 7.2.1 Synthesissynthesis approach usually contain more defects, which reduces the electron transfer rate in the graphenesynthesis of noble metal nanoparticles. 8.2 Hybrid support for Pt catalyst To better incorporate reduced graphene

Li, Yujing
2012-01-01

450

Surface protected and modified iron based core-shell nanoparticles for biological applicationsw

  Materials Science Websites

Summary: could be replaced with pure iron, one would greatly enhance detection and manipulation capabilitySurface protected and modified iron based core-shell nanoparticles for biological applicationsw October 2007 DOI: 10.1039/b711870h Excellent quality superparamagnetic iron oxide coated iron

Niewczas, Marek

451

AEROSOL SELF-ASSEMBLY OF NANOPARTICLE FILMS: GROWTH DYNAMICS AND RESULTING 3D STRUCTURE

  Engineering Websites

Summary: ] applications. Recently, chemo-resistive gas sensors made of metal oxide semiconductors have been used for gas sensors because the gas molecules can diffuse effortlessly into the detector and chemical interactions can easily occur between the gas and the sensor surface [100, 11]. Nanoparticle generated

Qin, Qinghua

452

Nanoparticles are being used to address the long-standing problem of

  Biotechnology Websites

Summary: convert external electromagnetic energy into heat, could specifically induce tumour coagulation. Mice were as a source of electromagnetic energy. This induced substantial coagulation only in the treated xenograft of electromagnetic energy into heat by conventional metal oxide nanoparticles is inefficient, so larger amounts

Bhatia, Sangeeta

453

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

454

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

455

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

456

Nanostructured Transparent Conducting Oxides via Blockcopolymer Patterning

  University of Cambridge - Dspace

Summary: not as a template, but as a structure guiding agent to fabricate 3D nanostructured ZnO. Due to its simplicity and elegance, this bottom-up coassembly method has been utilised and well-established for other metal oxide systems, but hardly applied to zinc... Light being an electromagnetic phenomenon, the optical properties of TCO mate- rials are intimately coupled to the electrical properties as well. [1,4] The interaction of light and materials can be described by the oscillatory motion of electrons bound...

Kim, Joung Youn Ellie
2014-05-27

457

(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


458

Colloidal Nanoparticle Assemblies: Synthesis, Surface-modification, and Applications.

  Open Access Theses and Dissertations

Summary: ??Assembling nanoparticles into secondary structures not only allows the combination of properties of individual nanoparticles, but also takes advantage of the interactions between neighboring nanoparticles… (more)

Lu, Zhenda
2012-01-01

459

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.

460

Role of Moisture in Adsorption, Photocatalytic Oxidation, and

  Energy Storage, Conversion and Utilization Websites

Summary: Role of Moisture in Adsorption, Photocatalytic Oxidation, and Reemission of Elemental Mercury-titania (SiO2-TiO2) nanocomposite has been developed to effectively capture elemental mercury (Hg0) under UV various Hg emission sources. A novel low-cost methodology using titanium dioxide (TiO2) nanoparticles

Li, Ying

461

Programmable Nanolithography with Plasmon Nanoparticle Arrays

  Physics Websites

Summary: of photolithography remains: that a single mask is used only for a single pattern. Silver and gold nanoparticles that the near-field of a single nanoparticle is sufficiently localized to allow silver nanoparticlesProgrammable Nanolithography with Plasmon Nanoparticle Arrays A. Femius Koenderink,*, Jesus V

Polman, Albert

462

Regulation of Zinc Transport in the Choroid Plexus

  Texas A&M University - TxSpace

Summary: The choroid plexus epithelium forms the blood-cerebrospinal fluid barrier, but also accumulates and transports nutritive minerals, such as zinc, into and out of the cerebrospinal fluid. The goal of this thesis was to analyze interdependent...

Aquino, Mayra
2014-07-21

463

The effects of alcohol use on zinc status

  Texas A&M University - TxSpace

Summary: Alcohol consumption has been shown to have adverse affects on bone growth and maintenance, although the mechanism has not been elucidated. The objective of this research was to look at the relationship between zinc and alcohol as a possible...

Chapman, Lisa Louise
1998-01-01

464

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

465

AN INVENTORY OF PHOTOGRAPHS OF ZINC ELECTRODEPOSITED FROM ACID ELECTROLYTES

  University of California eScholarship Repository

Summary: Electrical circuit diagram Experimental apparatus Limiting current plaT7~us, 0.05 Levich plot (i vs. :;Electrical Circuit Diagrams Striated Zinc Deposit (GOULD, Inc. Photograph) Typical Striated Deposits Striation Length vs.

Faltemier, J.L.
2011-01-01

466

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.

unknown authors

467

Dispenser Printed Zinc Microbattery with an Ionic Liquid Gel Electrolyte

  University of California eScholarship Repository

Summary: and Dissolution from Printed Electrodes The planar testdissolution of an active species through an electrolyte medium. A typical testtest cells were fabricated with the same procedure discussed for the printed zinc electrodeposition and dissolution

Ho, Christine Chihfan
2010-01-01

468

Novel D-penicillamine carrying nanoparticles for metal chelation therapy in Alzheimer’s and other CNS diseases

  CiteSeer

Summary: Metal ions accumulate in the brain with aging and in several neurodegenerative diseases. Aside from the copper storage disease, Wilson’s disease, recent attention has focused on the accumulation of zinc, copper and iron in the Alzheimer’s disease (AD) brain and the accumulation of iron in Parkinson’s disease. In particular, the parenchymal deposition of b-amyloid (Ab) and its interaction with metal ions has been postulated to play a role in the progression of AD. Thus, the strategy of lowering brain metal ions and targeting the interaction of Ab peptide and metal ions through the administration of chelators has merit. Our recent finding that nanoparticle delivery systems can cross the blood–brain barrier has led us to investigate whether chelators delivered conjugated to nanoparticles could act to reverse metal ion induced protein precipitation. In the present studies, the Cu (I) chelator D-penicillamine was covalently conjugated to nanoparticles via a disulfide bond or a thioether bond. Nanoparticle-chelator conjugates were stable between pH 6–8 in aqueous suspension if stored at 4 8C, and did not aggregate when challenged with salts and serum. Release of D-penicillamine from the nanoparicles was achieved using reducing agents such as dithiothreitol (as a model for glutathione). Nanoparticles treated only under reducing conditions that released the conjugated

Zhengrong Cui A; Paul R. Lockman B; Craig S. Atwood C; Cheng-hsuan Hsu A; Anshul Gupte A; David D. Allen B; Russell J. Mumper A
2004-01-01

469

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 thermostimulés est utilisée pour étudier le transport contrôlé par le piégeage dans les films de Phtalocyanine 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

470

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.

unknown authors

471

Review Article Paradigm Shift in Treatment of Alzheimer’s Disease: Zinc Therapy Now a Conscientious Choice for Care of Individual Patients

  CiteSeer

Summary: License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Breakthrough in treatment of Alzheimer’s disease with a shift from irrational dangerous chelation therapy to rational safe evidence based oral zinc therapy. Evidence based medicine: After synthesizing the best available clinical evidence I conclude that oral zinc therapy is a conscientious choice for treatment of free copper toxicosis in individual patients with Alzheimer’s disease. Hypothesis 1: Age related free copper toxicosis is a causal factor in pathogenesis of Alzheimer’s disease. There are 2 neurodegenerative diseases with abnormalities in copper metabolism: (a) the juvenile form with degeneration in the basal ganglia (Wilson’s disease) and (b) the age related form with cortical neurodegeneration (Alzheimer’s disease). Initially the hypothesis has been that neurodegeneration was caused by accumulation of copper in the brain but later experiences with treatment of Wilson’s disease led to the conviction that free plasma copper is the toxic form of copper: it catalyzes amyloid formation thereby generating oxidative stress, free radicals and degeneration of cortical neurons. Hypothesis 2: Oral zinc therapy is an effective and safe treatment of free copper toxicosis in Alzheimer’s disease. Proposed dosage: 50 mg elementary zinc/day. Warning: Chelation therapy is irrational and dangerous in treatment of copper toxicosis in Alzheimer’s disease. 1.

Tjaard U. Hoogenraad

472

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.

473

The use of cyclodextrin template-based metal oxide nanomaterials in the development of electrochemical sensors for phenolic endocrine disruptor compounds .

  Open Access Theses and Dissertations

Summary: ??Iron oxide nanoparticles were prepared using co-precipitation method in the presence and absence of beta-cyclodextrin ?-CD). Such materials were characterized using transmission electron microscopy (TEM),… (more)

Masikini, Milua
2010-01-01

474

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

475

Randomized controlled trial of prenatal zinc supplementation and the development of fetal heart rate

  Biology and Medicine Websites

Summary: - taining 60 mg iron, 250 mg folic acid with or without 25 mg zinc. Fetal heart rate (mean FHR, variability' gestation. No differences in motor activity were observed. Conclusion: Prenatal supplementation of zinc-deficient

Dominici, Francesca

476

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

477

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.

478

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

479

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

480

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

481

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


482

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

483

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.

484

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

485

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

486

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 Alzheimer’s 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

unknown authors
2010-01-01

487

2-64 GEOLOGICAL & ENVIRONMENTAL SCIENCES Chemical Forms of Zinc in a Smelter-

  Environmental Management and Restoration Websites

Summary: Zinc is contained in many objects of our daily life, from baby care products to anti-corrosive coatings. While zinc is benign to human health, it is phytotoxic at relatively modest concentrations, thereby

Sparks, Donald L.

488

The effect of zinc methionine or copper lysine on stocker calves grazing oat pastures

  Texas A&M University - TxSpace

Summary: produces no adverse effects on performance, but these safe levels may aggravate a borderline deficiency of other essential elements, such as copper, iron, or calcium (Miller, 1970). Zinc supplementation above 1000 ppm causes reduced gains, decreased... in swine when 250 ppm copper as copper sulfate was added. The high level of copper can lead to anemia, copper toxicity, or zinc deficiency unless the diets contain adequate iron and zinc as antagonists. One hundred and fifty ppm of both iron and zinc can...

Griffeth, Laura Ann
2012-06-07

489

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

490

Nanoparticle halos: A new colloid stabilization mechanism

  Materials Science Websites

Summary: Nanoparticle halos: A new colloid stabilization mechanism Valeria Tohver*, James E. Smay*, Alan, 2001 (received for review February 7, 2001) A new mechanism for regulating the stability of colloidal volume fraction of highly charged nanoparticle species. Zeta potential analysis revealed

Lewis, Jennifer

491

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

492

DEVELOPMENTAL PHYTOTOXICITY OF METAL OXIDE NANOPARTICLES TO ARABIDOPSIS THALIANA

  Environmental Management and Restoration Websites

Summary: Department of Civil and Environmental Engineering, zDepartment of Biochemistry and Cell Biology, Rice University, MS and significant research discipline [4­9]. However, the majority of the published nanotoxicology articles have

Alvarez, Pedro J.

493

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

494

Iron oxide nanoparticles as a contrast agent for thermoacoustic tomography

  Texas A&M University - TxSpace

Summary: [14] Diaspro A 2002 Confocal and Two-Photon Microscopy: Foundations, Applications, and Advances (New York: Wiley-Liss) p 567 [15] K?nig K 2000 J. Microscopy 200 83 [16] Fukushima E and Roeder S B W 1981 Experimental Pulse NMR (Reading, MA...

Keho, Aaron Lopez
2009-06-02

495

Oxide Nanofilms from Nanoparticle Suspensions Deposited on Functionalized Surfaces.

  Open Access Theses and Dissertations

Summary: ??Single-crystal silicon wafers, with and without self-assembled organic monolayersurface treatments (amine or sulfonate) were immersed in commercially available oxidenanoparticle suspensions (alumina, ceria, or titania). These… (more)

Wiley, Devon S.
2008-01-01

496

Planar oxide supported rhodium nanoparticles as model catalysts

  Chemistry Websites

Summary: ) creation of carbonyl hydride species (Rh(CO)H)) on smaller Rh particles, whose presence corre- lates(CO)H carbonyl hydride species can also be formed (3, 9­12). The creation and stability of such carbonyl species

Goodman, Wayne

497

RESEARCH PAPER Effects of iron oxide nanoparticles on polyvinyl alcohol

  Materials Science Websites

Summary: (Glisenti 1998; Ren et al. 2009; Rofer-Depoorter 1981; Xie et al. 2009; Zhang et al. 2009; Zheng et al. 2007), photocatalysts (Kay et al. 2006), gas sensors (Fukazawa et al. 1993; Huo et al. 2005; Neri et al. 2002; Wang et al. Z. Guo (&) Á D. Zhang Á Y. Li Á J. A. Gomes Á D. L. Cocke Á T. C. Ho Integrated Composites

Guo, John Zhanhu

498

Dipeptide hydrolysis by the dinuclear zinc enzyme human renal dipeptidase: Mechanistic insights from DFT calculations

  Chemistry Websites

Summary: Dipeptide hydrolysis by the dinuclear zinc enzyme human renal dipeptidase: Mechanistic insights 2009 Available online 1 October 2009 Keywords: Dipeptidase Dinuclear zinc enzymes Reaction mechanism Density functional theory a b s t r a c t The reaction mechanism of the dinuclear zinc enzyme human renal

Liao, Rongzhen

499

Physica B 308310 (2001) 10151019 Energy levels of native defects in zinc germanium diphosphide

  Mathematics Websites

Summary: Physica B 308­310 (2001) 1015­1019 Energy levels of native defects in zinc germanium diphosphide W) and photo-EPR investigations of as-grown, post-growth annealed and electron irradiated zinc germanium levels 1. Introduction Zinc germanium diphosphide (ZnGeP2) is one of the most technologically important

Nabben, Reinhard

500

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

  Engineering 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


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