JOURNAL ARTICLE

Synthesis of silver nanoparticles using A. indicum leaf extract and their antibacterial activity

S Ashokkumar, S Ravi, V Kathiravan, S Velmurugan
Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy 2015 January 5, 134: 34-9
24997264
Green synthesis of silver nanoparticles has been achieved using environmentally acceptable plant extract. It is observed that Abutilon indicum leaf extract can reduce silver ions into silver nanoparticles within 15 min of reaction time. The formation and stability of the reduced silver nanoparticles in the colloidal solution were monitored by UV-Vis spectrophotometer analysis. The mean particle diameter of silver nanoparticles was calculated from the XRD pattern. FT-IR spectra of the leaf extract after the development of nanoparticles are determined to allow identification of possible functional groups responsible for the conversion of metal ions to metal nanoparticles. The AgNPs thus obtained showed highly potent antibacterial activity toward Gram-positive (Staphyloccocus aureus and Bacillus subtilis) and Gram-negative (Salmonella typhi and Escherichia coli) microorganisms.

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