Journal
INTERNATIONAL NANO LETTERS
Volume 5, Issue 2, Pages 93-100Publisher
SPRINGER INTERNATIONAL PUBLISHING AG
DOI: 10.1007/s40089-015-0142-y
Keywords
Silver nanoparticles; Green synthesis; Plant extract; Antimicrobial activity
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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.
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