Abstract
The production of cheap and effective compound for medicinal application is a major challenge for scientific community. So, several biological materials have been explored for the possible application in material synthesis which are useful in biomedical uses. Here, biomolecules from green tea leaves were functionalized on the surface of silicon dioxide nanoparticles (GSiO2 NPs). Next, the decoration silver (Ag) NPs on the surface of the GSiO2 NPs was observed in very short time of incubation in aqueous AgNO3. Ultraviolet-visible spectroscopy confirmed the formation of Ag NPs and the high-resolution transmission and scanning electron microscopies confirmed the decoration of spherical Ag NPs of 10 to 15nm size on the surface of GSiO2 NPs. The antimicrobial activity of the Ag-GSiO2 NPs was determined against Staphylococcus aureus and Escherichia coli. The Ag-GSiO2 NPs displayed sustainable antimicrobial activity compared to Ag ions. The results indicate the potential value of Ag-GSiO2 NPs in surgical material and food processing.
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