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Title: Preparation of gold nanoparticles and determination of their particles size via different methods

Abstract

Graphical abstract: Preparation of gold nanoparticles via NaBH{sub 4} reduction method, and determination of their particle size, size distribution and morphology by using different techniques. - Highlights: • Gold nanoparticles were synthesized by NaBH{sub 4} reduction method. • Excess of reducing agent leads to tendency of aggregation. • The particle size, size distribution and morphology were investigated. • Particle size was determined both experimentally as well as theoretically. - Abstract: Gold nanoparticles have been used in various applications covering both electronics, biosensors, in vivo biomedical imaging and in vitro biomedical diagnosis. As a general requirement, gold nanoparticles should be prepared in large scale, easy to be functionalized by chemical compound of by specific ligands or biomolecules. In this study, gold nanoparticles were prepared by using different concentrations of reducing agent (NaBH{sub 4}) in various formulations and their effect on the particle size, size distribution and morphology was investigated. Moreover, special attention has been dedicated to comparison of particles size measured by various techniques, such as, light scattering, transmission electron microscopy, UV spectrum using standard curve and particles size calculated by using Mie theory and UV spectrum of gold nanoparticles dispersion. Particle size determined by various techniques can be correlated formore » monodispersed particles and excess of reducing agent leads to increase in the particle size.« less

Authors:
;  [1]; ; ;  [2];  [1];  [3];  [1];  [3];  [1]
  1. University of Lyon, University Lyon-1, CNRS, UMR-5007, LAGEP, F-69622 Villeurbanne (France)
  2. Laboratory of Chemistry and Environmental Chemistry(LCCE), Faculty of Science, Material Science Department, University of Batna, 05000 (Algeria)
  3. Institut des Sciences Analytiques (ISA), Université Lyon, Université Claude Bernard Lyon-1, UMR-5180, 5 rue de la Doua, F-69100 Villeurbanne (France)
Publication Date:
OSTI Identifier:
22581576
Resource Type:
Journal Article
Resource Relation:
Journal Name: Materials Research Bulletin; Journal Volume: 79; Other Information: Copyright (c) 2015 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; AGGLOMERATION; COMPARATIVE EVALUATIONS; CONCENTRATION RATIO; GOLD; LIGHT SCATTERING; MORPHOLOGY; NANOPARTICLES; NANOSTRUCTURES; OPTICAL PROPERTIES; PARTICLE SIZE; REDUCING AGENTS; REDUCTION; SODIUM BORIDES; SODIUM HYDRIDES; TRANSMISSION ELECTRON MICROSCOPY; ULTRAVIOLET SPECTRA

Citation Formats

Iqbal, Muhammad, Usanase, Gisele, Oulmi, Kafia, Aberkane, Fairouz, Bendaikha, Tahar, Fessi, Hatem, Zine, Nadia, Agusti, Géraldine, Errachid, El-Salhi, and Elaissari, Abdelhamid, E-mail: elaissari@lagep.univ-lyon1.fr. Preparation of gold nanoparticles and determination of their particles size via different methods. United States: N. p., 2016. Web. doi:10.1016/J.MATERRESBULL.2015.12.026.
Iqbal, Muhammad, Usanase, Gisele, Oulmi, Kafia, Aberkane, Fairouz, Bendaikha, Tahar, Fessi, Hatem, Zine, Nadia, Agusti, Géraldine, Errachid, El-Salhi, & Elaissari, Abdelhamid, E-mail: elaissari@lagep.univ-lyon1.fr. Preparation of gold nanoparticles and determination of their particles size via different methods. United States. doi:10.1016/J.MATERRESBULL.2015.12.026.
Iqbal, Muhammad, Usanase, Gisele, Oulmi, Kafia, Aberkane, Fairouz, Bendaikha, Tahar, Fessi, Hatem, Zine, Nadia, Agusti, Géraldine, Errachid, El-Salhi, and Elaissari, Abdelhamid, E-mail: elaissari@lagep.univ-lyon1.fr. 2016. "Preparation of gold nanoparticles and determination of their particles size via different methods". United States. doi:10.1016/J.MATERRESBULL.2015.12.026.
@article{osti_22581576,
title = {Preparation of gold nanoparticles and determination of their particles size via different methods},
author = {Iqbal, Muhammad and Usanase, Gisele and Oulmi, Kafia and Aberkane, Fairouz and Bendaikha, Tahar and Fessi, Hatem and Zine, Nadia and Agusti, Géraldine and Errachid, El-Salhi and Elaissari, Abdelhamid, E-mail: elaissari@lagep.univ-lyon1.fr},
abstractNote = {Graphical abstract: Preparation of gold nanoparticles via NaBH{sub 4} reduction method, and determination of their particle size, size distribution and morphology by using different techniques. - Highlights: • Gold nanoparticles were synthesized by NaBH{sub 4} reduction method. • Excess of reducing agent leads to tendency of aggregation. • The particle size, size distribution and morphology were investigated. • Particle size was determined both experimentally as well as theoretically. - Abstract: Gold nanoparticles have been used in various applications covering both electronics, biosensors, in vivo biomedical imaging and in vitro biomedical diagnosis. As a general requirement, gold nanoparticles should be prepared in large scale, easy to be functionalized by chemical compound of by specific ligands or biomolecules. In this study, gold nanoparticles were prepared by using different concentrations of reducing agent (NaBH{sub 4}) in various formulations and their effect on the particle size, size distribution and morphology was investigated. Moreover, special attention has been dedicated to comparison of particles size measured by various techniques, such as, light scattering, transmission electron microscopy, UV spectrum using standard curve and particles size calculated by using Mie theory and UV spectrum of gold nanoparticles dispersion. Particle size determined by various techniques can be correlated for monodispersed particles and excess of reducing agent leads to increase in the particle size.},
doi = {10.1016/J.MATERRESBULL.2015.12.026},
journal = {Materials Research Bulletin},
number = ,
volume = 79,
place = {United States},
year = 2016,
month = 7
}
  • In order to exploit the recently introduced 1 nm gold colloids in routine electron microscopic labeling experiments, an efficient enhancement step for a better visualization of this small marker is a prerequisite. Efficiency and reproducibility of enhancement as well as growth homogeneity of gold particles were evaluated for three different silver intensifying solutions: silver lactate/hydroquinone/gum arabic, and the commercially available IntenSE M silver enhancement kit. The best results were obtained by using the silver lactate/hydroquinone/gum arabic mixture. The quality of enhancement of the IntenSE M kit was considerably increased by the addition of the protective colloid gum arabic.
  • Crystallite size values were determined by X-ray diffraction methods for 183 powder samples. The tested size range was from a few to about several hundred nanometers. Crystallite size was calculated with direct use of the Scherrer equation, the Williamson–Hall method and the Rietveld procedure via the application of a series of commercial and free software. The results were statistically treated to estimate the significance of the difference in size resulting from these methods. We also estimated effect of acquisition conditions (Bragg–Brentano, parallel-beam geometry, step size, counting time) and data processing on the calculated crystallite size values. On the basis ofmore » the obtained results it is possible to conclude that direct use of the Scherrer equation, Williamson–Hall method and the Rietveld refinement employed by a series of software (EVA, PCW and TOPAS respectively) yield very close results for crystallite sizes less than 60 nm for parallel beam geometry and less than 100 nm for Bragg–Brentano geometry. However, we found that despite the fact that the differences between the crystallite sizes, which were calculated by various methods, are small by absolute values, they are statistically significant in some cases. The values of crystallite size determined from XRD were compared with those obtained by imaging in a transmission (TEM) and scanning electron microscopes (SEM). It was found that there was a good correlation in size only for crystallites smaller than 50 – 60 nm. Highlights: • The crystallite sizes for 183 nanopowders were calculated using different XRD methods • Obtained results were subject to statistical treatment • Results obtained with Bragg-Brentano and parallel beam geometries were compared • Influence of conditions of XRD pattern acquisition on results was estimated • Calculated by XRD crystallite sizes were compared with same obtained by TEM and SEM.« less
  • We describe work in which gold nanoparticles were formed in diamond-like carbon (DLC), thereby generating a Au-DLC nanocomposite. A high-quality, hydrogen-free DLC thin film was formed by filtered vacuum arc plasma deposition, into which gold nanoparticles were introduced using two different methods. The first method was gold ion implantation into the DLC film at a number of decreasing ion energies, distributing the gold over a controllable depth range within the DLC. The second method was co-deposition of gold and carbon, using two separate vacuum arc plasma guns with suitably interleaved repetitive pulsing. Transmission electron microscope images show that the sizemore » of the gold nanoparticles obtained by ion implantation is 3-5 nm. For the Au-DLC composite obtained by co-deposition, there were two different nanoparticle sizes, most about 2 nm with some 6-7 nm. Raman spectroscopy indicates that the implanted sample contains a smaller fraction of sp{sup 3} bonding for the DLC, demonstrating that some sp{sup 3} bonds are destroyed by the gold implantation.« less
  • The tunability of the optical properties of small gold nanoparticles assembled from size-selected Au{sub 6-10} clusters on the surface of indium-tin-oxide glass support was studied as a function of gold particle size and shape using UV-VIS and dark-field microscopy techniques. The size and shape of gold nanoparticles was determined by employing synchrotron X-ray scattering. The obtained spectra show that a 350 nm wavelength range is accessible by proper tuning the size and shape of the studied nanoparticles with 1-2.5 nm main size and asymmetric vs symmetric form.