ISSN : 0975-9492


Open Access

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Title : Antibacterial potency of silver nanoparticles synthetized using Boerhaavia diffusa leaf extract as reductive and stabilizing agent
Authors : Sunday Adewale AKINTELU, Aderonke Similoluwa FOLORUNSO, Abel Kolawole OYEBAMIJI1, Ehimen Annastasia ERAZUA
Keywords : Boerhaavia diffusa leaf extract, silver nanoparticles, antimicrobial and Eco-friendly.
Issue Date : Dec 2019
Abstract :
This study was aimed on the use of simple and eco-friendly method in synthesis of silver nanoparticles (AgNPs) using Boerhaavia diffusa leaf extract and to investigate the antimicrobial activity of the synthesized silver nanoparticles. The characterization of the synthesized silver nanoparticles was investigated with UV-Visible spectroscopy, Fourier Transmission Infrared Spectroscopy (FTIR) and Transmission Electron Microscopy (TEM). The reduction of the Ag+ to Ag0 by Boerhaavia diffusa leaf extract was followed by color change of the solution from colorless, yellow to dark brown within 24 hours. The surface Plasmon resonance peaks of the maximum absorbance of synthesized silver nanoparticles was observed at 425 nm, signifying the formation of AgNPs. The participation of –OH, C=O, C=C and alkane functional group in the synthesized AgNPs was detected from the FTIR spectra. The TEM micrograph reveals that the silver nanoparticle are spherical in shape with particle size ranging from 30- 40 nm. The high percentage zone of inhibition (26 – 51%) against selected microbes shows that the silver nanoparticle exhibit good antimicrobial potency. From this study we can conclude that Boerhaavia diffusa leaf extract could be considered as good antimicrobial agent, a good source for simple, low cost and eco-friendly synthesis of stable AgNPs.
Page(s) : 374-380
ISSN : 0975-9492
Source : Vol. 10, No.12