Comparison of methods for the synthesis of anisotropic silver nanoparticles using wet chemistry.
Kirill V. Lobanov,1 Andrey V. Simonenko,1,2 Vitaly A. Khanadeev,2,3
1 Saratov State University, Saratov, Russia;
2 Institute of Biochemistry and Physiology of Plants and Microorganisms Subdivision of the Federal State Budgetary Research Institution Saratov Federal Scientific Centre of the Russian Academy of Sciences (IBPPM RAS), Saratov, Russia;
3 Saratov State Vavilov Agrarian University, Saratov, Russia;
Abstract
Silver nanoparticles are of great interest for various biomedical applications due to their unique chemical and plasmonic properties. Therefore, it is important to search for optimal methods of their synthesis. A literature review of methods for the synthesis of anisotropic silver nanoparticles was carried out to find the most optimal method of synthesis giving the most monodisperse particles.
It is revealed that seed-mediated and seadless synthesis methods are used to produce nanotriangles. The most optimal is the seed-mediated method using polyvinylpyrrolidone (PVP) and hydrogen peroxide. However, this method does not allow one to obtain completely uniform nanoparticles in solution.
To obtain silver nanostars, the most widely used method is the reduction of silver nitrate with sodium citrate in the presence of hydroxylamine. Unlike other protocols, this method allows to obtain low-aggregating particles with small size deviations.
This work was supported by the Russian Science Foundation (project No. 18-14-00016-II).
Speaker
Kirill V. Lobanov
Saratov State University
Russia
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