Green synthesis of gold and silver nanoparticles

Philip, D. (2010) Green synthesis of gold and silver nanoparticles using Hibiscus rosa sinensis. Physica E, 42, 1417-1424. 

Advantages of plant-mediated green synthesis of gold and silver nanoparticles. 

MECHANISM OF GREEN SYNTHESIS OF GOLD AND SILVER NANOPARTICLES... 

The mechanism of green synthesis of gold and silver nanoparticles is due to the presence of polyphenol in plant extracts which is responsible for reduction of nanoparticles. The molecular mechanism which gives the antioxidant properties of gold and silver nanoparticles endorses reduction of Au ions to Au atoms and Ag ions to Ag atoms (Figure 6.8). This reduction takes place by abstraction of hydrogen because of the OH groups in the polyphenol... 

TEM analysis confirms the approximate shape, nanogram, and diameter (< 100 nm) after the bioreduction of green synthesis of gold and silver nanoparticles after 24 h. The shapes of some nanoparticles were roughly circular with smooth edges and... 

This review approaches the preparation of gold and silver nanoparticles by employing green synthesis techniques instead of chemical and physical methods. This smdy will provide valuable information for the preparation and characterization of silver and gold nanoparticles and its present and future prospects and prospective constraints of techniques in industry. In addition, we have particularly emphasized the role of silver and gold nanoparticles with other materials and their biomedical applications. 

H. Huang, X. Yang Synthesis of Polysaccharide-stabilized Gold and Silver Nanoparticles A Green Method, ""Carbohydrate Research 2004, v. 339, iss. 15,2627-2631. 

Philip, D., Unni, C., Aromal, S.A., Vidhu, V.K., 2011. Murraya koenigii leaf-assisted rapid green synthesis of silver and gold nanoparticles. Spectrochim. Acta A Mol. Biomol. Spectrosc. 78 (2), 899—904. 

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