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Analysis of the Evolution of Tannic Acid Stabilized Gold Nanoparticles Using Mie Theory

Spherical gold nanoparticles (GNPs) have been synthesized in aqueous solutions using sodium citrate (SC) and tannic acid (TA) as reducing and stabilizing agents. Upon addition of TA and compared to the GNP TA-free aqueous solutions, a reduction of the GNPs size and consequently a dramatic change of...

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Detalles Bibliográficos
Autores principales: Senoudi, Assia Rachida, Chabane Sari, Sidi Mohammed, Hakem, Ilhem Faiza
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Hindawi Publishing Corporation 2014
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4265386/
https://www.ncbi.nlm.nih.gov/pubmed/25525433
http://dx.doi.org/10.1155/2014/832657
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author Senoudi, Assia Rachida
Chabane Sari, Sidi Mohammed
Hakem, Ilhem Faiza
author_facet Senoudi, Assia Rachida
Chabane Sari, Sidi Mohammed
Hakem, Ilhem Faiza
author_sort Senoudi, Assia Rachida
collection PubMed
description Spherical gold nanoparticles (GNPs) have been synthesized in aqueous solutions using sodium citrate (SC) and tannic acid (TA) as reducing and stabilizing agents. Upon addition of TA and compared to the GNP TA-free aqueous solutions, a reduction of the GNPs size and consequently a dramatic change of their optical properties have been observed and quantitatively analyzed using Mie theory. An increase in the concentration of TA reveals a modification of the colloidal solution refractive index that is evidenced by the shift in the peak position of the localized surface plasmon resonance (LSPR) band. The variations of the peak absorbance with the TA concentration are examined in the low and high concentration regimes.
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spelling pubmed-42653862014-12-18 Analysis of the Evolution of Tannic Acid Stabilized Gold Nanoparticles Using Mie Theory Senoudi, Assia Rachida Chabane Sari, Sidi Mohammed Hakem, Ilhem Faiza Int J Anal Chem Research Article Spherical gold nanoparticles (GNPs) have been synthesized in aqueous solutions using sodium citrate (SC) and tannic acid (TA) as reducing and stabilizing agents. Upon addition of TA and compared to the GNP TA-free aqueous solutions, a reduction of the GNPs size and consequently a dramatic change of their optical properties have been observed and quantitatively analyzed using Mie theory. An increase in the concentration of TA reveals a modification of the colloidal solution refractive index that is evidenced by the shift in the peak position of the localized surface plasmon resonance (LSPR) band. The variations of the peak absorbance with the TA concentration are examined in the low and high concentration regimes. Hindawi Publishing Corporation 2014 2014-11-23 /pmc/articles/PMC4265386/ /pubmed/25525433 http://dx.doi.org/10.1155/2014/832657 Text en Copyright © 2014 Assia Rachida Senoudi et al. https://creativecommons.org/licenses/by/3.0/ This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Research Article
Senoudi, Assia Rachida
Chabane Sari, Sidi Mohammed
Hakem, Ilhem Faiza
Analysis of the Evolution of Tannic Acid Stabilized Gold Nanoparticles Using Mie Theory
title Analysis of the Evolution of Tannic Acid Stabilized Gold Nanoparticles Using Mie Theory
title_full Analysis of the Evolution of Tannic Acid Stabilized Gold Nanoparticles Using Mie Theory
title_fullStr Analysis of the Evolution of Tannic Acid Stabilized Gold Nanoparticles Using Mie Theory
title_full_unstemmed Analysis of the Evolution of Tannic Acid Stabilized Gold Nanoparticles Using Mie Theory
title_short Analysis of the Evolution of Tannic Acid Stabilized Gold Nanoparticles Using Mie Theory
title_sort analysis of the evolution of tannic acid stabilized gold nanoparticles using mie theory
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4265386/
https://www.ncbi.nlm.nih.gov/pubmed/25525433
http://dx.doi.org/10.1155/2014/832657
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