COST EFFECTIVE GREEN SYNTHESIS OF SILVER NANOPARTICLES FROM RED ONION PEELS AQUEOUS AND ETHANOL EXTRACTS AND THEIR ANTIMICROBIAL ACTIVITY

Olugbemi-Adesipe, T.I (2019) COST EFFECTIVE GREEN SYNTHESIS OF SILVER NANOPARTICLES FROM RED ONION PEELS AQUEOUS AND ETHANOL EXTRACTS AND THEIR ANTIMICROBIAL ACTIVITY. In: National Development Conference of The School of Pure and Applied Science, The Federal Polytechnic Ilaro, 2nd – 5th December, 2019, Federal Polytechnic Ilaro, Ogun State.

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Abstract

Introduction: Due to the increasing commercial demand for nanoparticles because of their wide applicability in various areas such as in electronics, catalysis, chemistry, energy etc, green synthesis of silver nanoparticles (AgNPs) has gained much interest from chemists and researchers since it is a cost-effective and eco-friendly technique. Aim: The aim of this study is to investigate the use of red onion peel extract as a reducing agent for silver nanoparticles synthesis and to assay for its antimicrobial property. Method: In the present study, AgNPs were synthesized from 1 mM AgNO3 solution through the aqueous and ethanol extracts of red onion peels. The nature of AgNPs synthesized was primarily characterized by UV-visible spectroscopy. The antibacterial potential of synthesized AgNPs was compared with that of standard antibiotic, Gentamycin by agar well diffusion method. Results: The antibacterial activity results revealed that AgNPs synthesized from aqueous and ethanol extract of red onion peels showed significant zones of inhibition than the standard drug used against the majority of tested organisms except for Rhizopus and Salmonella typhi. Rhizopus was found to be two-fold sensitive to AgNPs of aqueous extract of red onion peels than AgNPs of the ethanol extract. Conclusion: AgNPs from aqueous and ethanol extract of red onion peels showed broad spectrum antibacterial activity and may be a good alternative therapeutic approach in future.

Item Type:	Conference or Workshop Item (Paper)
Subjects:	Q Science > Q Science (General) Q Science > QD Chemistry
Divisions:	Faculty of Engineering, Science and Mathematics > School of Chemistry
Depositing User:	Mr Taiwo Egbeyemi
Date Deposited:	11 May 2020 19:14
Last Modified:	11 May 2020 19:14
URI:	http://eprints.federalpolyilaro.edu.ng/id/eprint/74

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