Aqueous Stable Silver Nanoparticles Derived from Nimble Leaves of Psidium Guajava_ Crimson Publishers

Aqueous Stable Silver Nanoparticles Derived from Nimble Leaves of Psidium Guajava by Keyur D Bhatt In Aqueous Stable Silver Nanoparticles Derived from Nimble Leaves of Psidium Guajava


Abstract
Here, we report the synthesis of silver nanoparticles (AgNPs) by utilizing extract of Psidium guajava. In this study leaf was with extricated alcohol, further this extract is utilized for the preparation of nanoparticles followed by treatment with silver nitrate solution. Color change from colorless to dark-yellow and SPR band (UV-Vis) 420nm which indicates the synthesis of plant reduced silver nanoparticles. The presences of proteins as capping agent, which increase the stability of AgNPs in the colloids, are characterized by Fourier transform infrared spectroscopy (FTIR). Transmission electron microscopy (TEM) demonstrated the presence at spherical AgNPs in the range of 15-30nm. The bactericidal activity of standard antibiotics was essentially expanded in the presence of AgNPs against pathogenic bacteria, S Aureus, Staphylococcus, E Coli, P Putida and fungus A Niger.

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