Using Soil Fungus, Fusarium Oxysporum for Green Synthesis of Silver Nanoparticles and Evaluation of Their Antimicrobial Effects

Omar, Sabrien; Dawood, D.

doi:10.21608/jacb.2016.41140

Using Soil Fungus, Fusarium Oxysporum for Green Synthesis of Silver Nanoparticles and Evaluation of Their Antimicrobial Effects

Document Type : Original Article

Authors

Sabrien Omar ¹
D. Dawood ²

¹ Department of Microbiology Faculty of Agriculture, Mansoura University, Mansoura, 33516, Egypt

² Department of Chemistry, Faculty of Agriculture, Mansoura University, Mansoura, 33516, Egypt

10.21608/jacb.2016.41140

Abstract

Synthesis of nanoparticles by using micro-organisms is a promising future achievement in the field of green nanotechnology. In this respect, the extracellular biosynthesis of silver nanoparticles (AgNPs) by using culture supernatants of soil fungus Fusarium oxysporum was studied. The bioreduction of AgNPs was detected by ultraviolet-visible spectroscopy, and the synthesized AgNPs were characterized by transmission electron microscopy and Zeta potential. In addition, evaluation of antimicrobial activity of the synthesized AgNPs was tested. The synthesized AgNPs appeared as polydispersed spherical particles, stabilized in the solution and ranging in size from 9 to 24 nm. Also, the results showed that the synthesized AgNPs had inhibition effects on various pathogenic microorganisms including bacteria and fungi. Synthesis of AgNPs by soil fungus Fusarium oxysporum may represent a safe, non-sophisticated and economic method for production of antimicrobial agents.

Keywords