Synthesis, characterization and antibacterial potential of silver nanoparticles by Morus nigra leaf extract
Journal Title: Indian Journal of Pharmaceutical and Biological Research - Year 2013, Vol 1, Issue 4
Abstract
The present study reports the synthesis of silver nanoparticle using Morus nigra leaf extract were used as reducing agent for reduction of silver nitrate solution. The synthesis of silver nanoparticles was analyzed by UV-Visible spectroscopy, Scanning Electron Microscopy. The SEM analysis has shown that size of silver nanoparticles synthesized from leaves extract of M.nigra was 200 nm and seems to be spherical in morphology. Morphology of chemically synthesized silver nanoparticles is nearly spherical and of size ranges from 300-500 nm. The average particle size analyzed from SEM analysis was observed to be 350 nm. This article has discussed the synthesis of silver nanoparticles generated from plant extract, characterization and antibacterial analysis. In this study the antibacterial activity was examined against six MTCC cultures collected from IMTECH Chandigarh, Including both gram positive and gram negative bacteria such as P.aeruginosa, S.aureus, B.subtilis, E.coli, P.flourescens and Streptococus mutans. Out of these strains the antimicrobial activity of the silver nanoparticles showed maximum zone of inbhition against P.flourescens (22 mm), P.aeruginosa (19 mm), S.aureus (18 mm) and least effective against E.coli (15mm). In contrast chemically synthesized silver nanoparticles were found most effective against S.aureus (13 mm) and B.subtilis (12mm) and almost ineffective against Streptococcus mutans (6 mm) and P.flourescens (4 mm). In the concluding remarks, the silver nanoparticles synthesized using M.nigra leaves extract would be a better antimicrobial effective against various bacterial species.
Authors and Affiliations
Anu Kumar| Department of Biotechnology, Arni University Indora , Kangra (H.P), India, Kuldeep Kaur| Department of Biotechnology, Arni University Indora , Kangra (H.P), India, Sarika Sharma| Department of Biotechnology, Arni University Indora , Kangra (H.P), India
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