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The role of tannic acid and sodium citrate in the synthesis of silver nanoparticles
We describe herein the significance of a sodium citrate and tannic acid mixture in the synthesis of spherical silver nanoparticles (AgNPs). Monodisperse AgNPs were synthesized via reduction of silver nitrate using a mixture of two chemical agents: sodium citrate and tannic acid. The shape, size and...
Autores principales: | , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Springer Netherlands
2017
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5543188/ https://www.ncbi.nlm.nih.gov/pubmed/28824288 http://dx.doi.org/10.1007/s11051-017-3973-9 |
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author | Ranoszek-Soliwoda, Katarzyna Tomaszewska, Emilia Socha, Ewelina Krzyczmonik, Pawel Ignaczak, Anna Orlowski, Piotr Krzyzowska, Małgorzata Celichowski, Grzegorz Grobelny, Jaroslaw |
author_facet | Ranoszek-Soliwoda, Katarzyna Tomaszewska, Emilia Socha, Ewelina Krzyczmonik, Pawel Ignaczak, Anna Orlowski, Piotr Krzyzowska, Małgorzata Celichowski, Grzegorz Grobelny, Jaroslaw |
author_sort | Ranoszek-Soliwoda, Katarzyna |
collection | PubMed |
description | We describe herein the significance of a sodium citrate and tannic acid mixture in the synthesis of spherical silver nanoparticles (AgNPs). Monodisperse AgNPs were synthesized via reduction of silver nitrate using a mixture of two chemical agents: sodium citrate and tannic acid. The shape, size and size distribution of silver particles were determined by UV–Vis spectroscopy, dynamic light scattering (DLS) and scanning transmission electron microscopy (STEM). Special attention is given to understanding and experimentally confirming the exact role of the reagents (sodium citrate and tannic acid present in the reaction mixture) in AgNP synthesis. The oxidation and reduction potentials of silver, tannic acid and sodium citrate in their mixtures were determined using cyclic voltammetry. Possible structures of tannic acid and its adducts with citric acid were investigated in aqueous solution by performing computer simulations in conjunction with the semi-empirical PM7 method. The lowest energy structures found from the preliminary conformational search are shown, and the strength of the interaction between the two molecules was calculated. The compounds present on the surface of the AgNPs were identified using FT-IR spectroscopy, and the results are compared with the IR spectrum of tannic acid theoretically calculated using PM6 and PM7 methods. The obtained results clearly indicate that the combined use of sodium citrate and tannic acid produces monodisperse spherical AgNPs, as it allows control of the nucleation, growth and stabilization of the synthesis process. [Figure: see text] ELECTRONIC SUPPLEMENTARY MATERIAL: The online version of this article (doi:10.1007/s11051-017-3973-9) contains supplementary material, which is available to authorized users. |
format | Online Article Text |
id | pubmed-5543188 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2017 |
publisher | Springer Netherlands |
record_format | MEDLINE/PubMed |
spelling | pubmed-55431882017-08-17 The role of tannic acid and sodium citrate in the synthesis of silver nanoparticles Ranoszek-Soliwoda, Katarzyna Tomaszewska, Emilia Socha, Ewelina Krzyczmonik, Pawel Ignaczak, Anna Orlowski, Piotr Krzyzowska, Małgorzata Celichowski, Grzegorz Grobelny, Jaroslaw J Nanopart Res Research Paper We describe herein the significance of a sodium citrate and tannic acid mixture in the synthesis of spherical silver nanoparticles (AgNPs). Monodisperse AgNPs were synthesized via reduction of silver nitrate using a mixture of two chemical agents: sodium citrate and tannic acid. The shape, size and size distribution of silver particles were determined by UV–Vis spectroscopy, dynamic light scattering (DLS) and scanning transmission electron microscopy (STEM). Special attention is given to understanding and experimentally confirming the exact role of the reagents (sodium citrate and tannic acid present in the reaction mixture) in AgNP synthesis. The oxidation and reduction potentials of silver, tannic acid and sodium citrate in their mixtures were determined using cyclic voltammetry. Possible structures of tannic acid and its adducts with citric acid were investigated in aqueous solution by performing computer simulations in conjunction with the semi-empirical PM7 method. The lowest energy structures found from the preliminary conformational search are shown, and the strength of the interaction between the two molecules was calculated. The compounds present on the surface of the AgNPs were identified using FT-IR spectroscopy, and the results are compared with the IR spectrum of tannic acid theoretically calculated using PM6 and PM7 methods. The obtained results clearly indicate that the combined use of sodium citrate and tannic acid produces monodisperse spherical AgNPs, as it allows control of the nucleation, growth and stabilization of the synthesis process. [Figure: see text] ELECTRONIC SUPPLEMENTARY MATERIAL: The online version of this article (doi:10.1007/s11051-017-3973-9) contains supplementary material, which is available to authorized users. Springer Netherlands 2017-08-04 2017 /pmc/articles/PMC5543188/ /pubmed/28824288 http://dx.doi.org/10.1007/s11051-017-3973-9 Text en © The Author(s) 2017 Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. |
spellingShingle | Research Paper Ranoszek-Soliwoda, Katarzyna Tomaszewska, Emilia Socha, Ewelina Krzyczmonik, Pawel Ignaczak, Anna Orlowski, Piotr Krzyzowska, Małgorzata Celichowski, Grzegorz Grobelny, Jaroslaw The role of tannic acid and sodium citrate in the synthesis of silver nanoparticles |
title | The role of tannic acid and sodium citrate in the synthesis of silver nanoparticles |
title_full | The role of tannic acid and sodium citrate in the synthesis of silver nanoparticles |
title_fullStr | The role of tannic acid and sodium citrate in the synthesis of silver nanoparticles |
title_full_unstemmed | The role of tannic acid and sodium citrate in the synthesis of silver nanoparticles |
title_short | The role of tannic acid and sodium citrate in the synthesis of silver nanoparticles |
title_sort | role of tannic acid and sodium citrate in the synthesis of silver nanoparticles |
topic | Research Paper |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5543188/ https://www.ncbi.nlm.nih.gov/pubmed/28824288 http://dx.doi.org/10.1007/s11051-017-3973-9 |
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