Table of Contents
ISRN Biotechnology
Volume 2013 (2013), Article ID 515091, 5 pages
http://dx.doi.org/10.5402/2013/515091
Research Article

Biosynthesis of Gold Nanoparticles Using Fusarium oxysporum f. sp. cubense JT1, a Plant Pathogenic Fungus

1Department of Biotechnology, P. D. Patel Institute of Applied Science, Charotar University of Science & Technology, Education Campus Changa, Changa 388421, India
2Ashok and Rita Patel Institute of Integrated Study & Research in Biotechnology and Allied Sciences, New Vallabh Vidyanagar 388 121, India

Received 6 September 2012; Accepted 15 October 2012

Academic Editors: B. Castiglioni, E. Formentin, and H. S. Garcia

Copyright © 2013 Janki N. Thakker et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The development of reliable processes for the synthesis of gold nanoparticles is an important aspect of current nanotechnology research. Recently, reports are published on the extracellular as well as intracellular biosynthesis of gold nanoparticles using microorganisms. However, these methods of synthesis are rather slow. In present study, rapid and extracellular synthesis of gold nanoparticles using a plant pathogenic fungus F. oxysporum f. sp. cubense JT1 (FocJT1) is reported. Incubation of FocJT1 mycelium with auric chloride solution produces gold nanoparticles in 60 min. Gold nanoparticles were characterized by UV-Vis spectroscopy, FTIR, and particle size analysis. The particles synthesized were of 22 nm sized, capped by proteins, and posed antimicrobial activity against Pseudomonas sp.