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VOL. 6, ISSUE 3 (2021)
Bio-synthesis of silver nanoparticles from cotton plant extract and assessing its antibacterial activity
Authors
Bhosale JB, SP Giri
Abstract
In the present study, we have explored the simple, cost-effective, non-toxic, biological approach for the green synthesis of silver nanoparticles (Ag NPs) utilizing aqueous extract from cotton plant. Phytochemicals present in the plant were employed as a bio-reductant to reduce silver ions into silver nanoparticles. The Ag NPs synthesized were visually observed for appearance of dark reddish-brown color and confirmed by UV-Vis spectra through surface plasmon resonance (SPR) at 440-450 nm. The TEM and PSA studies revealed cuboidal shaped NPs coated with organic layer. The Ag NPs were found to be polydispersed with some of them to be agglomerated. Optimizing the factors (pH, incubation temperature, time and silver nitrate concentration) influencing Ag NPs’ formation, acidic pH (pH 5) was found to be more effective. The antibacterial activity of Ag NPs was investigated against Pseudomonas aeruginosa, E. coli and Staphylococcus aureus. Significant antibacterial activity was observed in dose dependent manner. This study demonstrates a simple, cost effective and eco-friendly method for synthesis of Ag NPs from cotton plant extract and its application in the field of nanomedicine as a potent antibacterial agent.
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Pages:56-62
How to cite this article:
Bhosale JB, SP Giri "Bio-synthesis of silver nanoparticles from cotton plant extract and assessing its antibacterial activity ". International Journal of Botany Studies, Vol 6, Issue 3, 2021, Pages 56-62
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