Biosynthesis of silver nanoparticles using extracts of Polyalthia longifolia leaves and their antimicrobial properties


Abstract:
Nanosized silver particles are current heartthrobs of applied nano biotechnological research. These silver nanoparticles have been synthesised by various physical, chemical and biological approaches, but still there is an indefinite search for an easy and effective synthesising methodology with less toxic nature. This need has driven this current research, which is focused on green synthesis of silver nanoparticles using leaf extracts of Polyalthia longifolia. Silver has been effectively reduced to nanoparticles by the phyto extracts, which were then characterised by UV-Vis Spectrophotometry, Scanning Electron Microscopy and examined for antimicrobial property against various human pathogenic bacteria, such as Staphylococcus aureus, Salmonella typhi, Pseudomonas aeruginosa and Escherichia coli. The results from this research were found to be more prominent and led to the identification of a simple and consistent way for synthesising silver nanoparticles for biomedical and applied scientific research.

Keywords:
Silver nanoparticles; Green synthesis; SEM analysis; Absorbance spectrum

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How to cite this article:
Yogalakshmi M, Sumalatha D, Madhan R. Biosynthesis of silver nanoparticles using extracts of Polyalthia longifolia leaves and their antimicrobial properties. Journal of Biological and Information Sciences. 2012. 1 (3). 26-29.
Available from: http://ojournals.biolim.com/BOJ001/001/BOJ001A0007.