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VOL. 7, ISSUE 1 (2022)
Plant mediated synthesis of silver nanoparticles from leaf extract of Phyllanthus amarus L. and their antibacterial activity
Authors
R Syed Moideen, A Lakshmi Prabha
Abstract
Aqueous leaf extract of Phyllanthus amarus L. was used for the synthesis of silver nanoparticles to prevent human pathogenic bacteria. The silver nanoparticles formation was confirmed by the color change of plant extracts (SNPs) and further observed with the help of UV – Vis spectroscopy and Fourier Transform Infra-Red (FTIR). The absorption spectra of silver nanoparticles studied using the UV-VIS spectroscopy at 420 nm. The antibacterial activities of silver nanoparticles were studied against human pathogenic bacterial strains such as Escherichia coli, Klebsiella pneumonia, Bacillus subtilis, Pseudomonas aeruginosa, Salmonella paratyphi, and Staphylococcus aureus. The zone of inhibition was higher in Klebsiella pneumonia, Proteus vulgaris and Salmonella paratyphi, the zone of inhibition was lower in Staphylococcus aureus. The antimicrobial activity of the synthesized nanoparticles is studied using the disc diffusion method, which indicates that both Gram positive and Gram-negative microorganisms have been affected by the silver nanoparticles. The observed antibacterial activity could be find important applications in medicine, biology and industry.
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Pages:251-257
How to cite this article:
R Syed Moideen, A Lakshmi Prabha "Plant mediated synthesis of silver nanoparticles from leaf extract of <em>Phyllanthus amarus</em> L. and their antibacterial activity ". International Journal of Botany Studies, Vol 7, Issue 1, 2022, Pages 251-257
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