Asian Journal of Microbiology, Biotechnology & Environmental Sciences Paper

Vol 15, Issue 3, 2013; Page No.(495-502)

FACILE ROUTE TO THE SYNTHESIS OF SILVER NANOPARTICLES BY THE ENDOPHYTIC FUNGUS ALTERNARIA SP.

SWETHA SUNKAR AND C. VALLI NACHIYAR

Abstract

The research on the techniques employed in the synthesis of nanoparticles is an area of grave importance. Owing to the disadvantages of chemical methods, microbes were looked upon as an effective alternative that paved the way for the “green” facile routes of nanoparticle synthesis. The use of different classes of microbes is currently in vogue but the vast potential of endophytic fungi has not yet been tapped completely. The present investigation aims to synthesize silver nanoparticles from the endophytic fungi Alternaria sp., isolated from Garcinia xanthochymus. This study reports the formation of extracellular silver nanoparticles using the cell free extract, with their size in the range of 24-55 nm that displayed potential antibacterial activity and dye degrading ability. This study emphasizes the advantage of the extracellular synthesis by endophytic fungi that need not require an additional step of isolation and is helpful for downstream processing.

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