Journal of Nanoparticle Research

, 11:2079

Fusarium solani: a novel biological agent for the extracellular synthesis of silver nanoparticles

  • Avinash Ingle
  • Mahendra Rai
  • Aniket Gade
  • Manisha Bawaskar
Research Paper

DOI: 10.1007/s11051-008-9573-y

Cite this article as:
Ingle, A., Rai, M., Gade, A. et al. J Nanopart Res (2009) 11: 2079. doi:10.1007/s11051-008-9573-y
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Abstract

We report extracellular biosynthesis of silver nanoparticles by Fusarium solani (USM-3799), a phytopathogen causing disease in onion, when challenged with 1 mM silver nitrate (AgNO3). The formation of nanoparticles was characterized by visual observation followed by UV–Vis spectrophotometric analysis, which showed a peak at about 420 nm, which is very specific for silver nanoparticles. Further analysis carried out by Fourier Transform Infrared Spectroscopy (FTIR), provides evidence for the presence of proteins as capping agent, which helps in increasing the stability of the synthesized silver nanoparticles. Transmission Electron Microscopy (TEM) investigations confirmed that silver nanoparticles were formed. The synthesized silver nanoparticles were found to be polydispersed, spherical in the range of 5–35 nm with average diameter of 16.23 nm. Extracellular synthesis of nanoparticles could be highly advantageous from the point of view of synthesis in large quantities and easy downstream processing.

Keywords

ExtracellularFusarium solaniTEMEco-friendlyDownstream processingAntimicrobial agentNanobiotechnology

Copyright information

© Springer Science+Business Media B.V. 2008

Authors and Affiliations

  • Avinash Ingle
    • 1
  • Mahendra Rai
    • 1
  • Aniket Gade
    • 1
  • Manisha Bawaskar
    • 1
  1. 1.Sant Gadge Baba Amravati UniversityAmravatiIndia