stability of synthesized silver nanoparticles in citrate and mixed gelatin/citrate solution

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ID: 200673
2018
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Abstract
The study focuses on an investigation of the influence of both citrate and mixed gelatin/citrate as a reductant and stabilizer on the colloidal stability of silver nanoparticles (AgNPs)synthesized by a chemical reduction of Ag+ ions after a short - (7th day) - and long - (118th day) - term storage. Formed AgNPs were characterized by a UV–vis Spectroscopy, Transmission Electron Microscope (TEM), Dynamic light scattering (DLS) and Zeta-potential (ZP). The obtained results revealed that a short-term stability of the synthesized AgNPs was greatly influenced by a citrate stabilizer with the absence of gelatin. Smaller-sized AgNPs (average particle diameter of 3 nm), roughly spherical in a shape, were obtained with a narrow size distribution. The very negative value of the Zeta-potential confirmed a strong stability of the citrate capped AgNPs. However, a surface coating of the AgNPs by a gelatin/citrate stabilizer was found to be a dominant contributor in improving a long-term stability of the AgNPs (average particle diameter of 26 nm). The use of gelatin in mixed stabilizer solution provided the AgNPs with higher monodispersity and a controllable size after both the short and long-term storage.
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kavuliov2018actastability Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Jana Kavuličová, Anna Mražíková, Oksana Velgosová, Dana Ivánová, Martina Kubovčíková
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Journal the journal of nutrition
Year 2018
DOI
10.14311/AP.2018.58.0104
URL
https://ojs.cvut.cz/ojs/index.php/ap/article/view/4553
Keywords
gelatin Silver nanoparticles size civil engineering (general)

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