Controlled green synthesis of silver nanoparticles by Allium cepa and Musa acuminata with strong antimicrobial activity

Geetika Sahni,Amit Panwar,Balpreet Kaur

doi:10.1007/s40089-015-0142-y

Abstract

A controlled “green synthesis” approach to synthesize silver nanoparticles by Allium cepa and Musa acuminata plant extract has been reported. The effect of different process parameters, such as pH, temperature and time, on synthesis of Ag nanoparticles from plant extracts has been highlighted. The work reports an easy approach to control the kinetics of interaction of metal ions with reducing agents, stabilized by ammonia to achieve sub-10 nm particles with narrow size distribution. The nanoparticles have been characterized by UV–Visible spectra and TEM analysis. Excellent antimicrobial activity at extremely low concentration of the nanoparticles was observed against Escherichia coli, Pseudomonas aeruginosa, Bacillus subtilis and Fusarium oxysporum which may allow their exploitation as a new generation nanoproduct in biomedical and agricultural applications.

Highlights

Nanomaterials are going radical due to their exceptional performance directing their application in everyday products such as water filters, cosmetics, packaging materials and coating over surfaces
Excellent antimicrobial activity at extremely low concentration of the nanoparticles was observed against Escherichia coli, Pseudomonas aeruginosa, Bacillus subtilis and Fusarium oxysporum which may allow their exploitation as a new generation nanoproduct in biomedical and agricultural applications
The confirmation of synthesis of Ag NPs in colloidal solution was monitored by the presence of surface plasmon resonance (SPR) band in the absorbance spectra recorded by UV–Vis spectrophotometer

Summary

Introduction

Nanomaterials are going radical due to their exceptional performance directing their application in everyday products such as water filters, cosmetics, packaging materials and coating over surfaces. Abstract A controlled ‘‘green synthesis’’ approach to synthesize silver nanoparticles by Allium cepa and Musa acuminata plant extract has been reported. The effect of different process parameters, such as pH, temperature and time, on synthesis of Ag nanoparticles from plant extracts has been highlighted.

Results

Conclusion