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Research Paper | Mycology Science | Volume 3 Issue 6, June 2014 | Pages: 1679 - 1683 | India
Biological Synthesis and Antibacterial Activityof Silver and Gold Nanoparticles Produced by the fungus Aspergillus terreus
Abstract: In this study; we investigated the fungus Aspergillus terreus used for the biosynthesis of silver and gold nanoparticles. The cell free filtrate of Aspergillus terreus reacted with AgNo3 and HAuCl4 ions separately; resulting formation of silver and gold nanoparticles. The silver and gold nanoparticles were characterized by Visual analysis; UV-Vis absorption spectroscopy and Transmission electron microscopy (TEM). The silver and gold nanoparticles exhibited maximum absorbance at 430 and 540 nm in UV-Vis spectroscopy. TEM micrograph showed polydisperse spherical and ellipsoid nanoparticles in the size range from 1-50 nm. Aspergillus terreus synthesized silver nanoparticles found strong antibacterial activity against Staphylococcus aureus and Shigella sps. However gold nanoparticles do not showed any antibacterial activity. Biological approach using the fungi is a novel way towards the safe; cost effective and ecofriendly method for the synthesis of gold nanoparticles is gaining importance in the field of nanotechnology.
Keywords: Aspergillus terreus, UV-Vis absorption spectroscopy, Transmission electron microscopy TEM, antibacterial activity, Staphylococcus aureus, Shigella sps
How to Cite?: Gitanjali B. Shelar, Ashok M. Chavan, "Biological Synthesis and Antibacterial Activityof Silver and Gold Nanoparticles Produced by the fungus Aspergillus terreus", Volume 3 Issue 6, June 2014, International Journal of Science and Research (IJSR), Pages: 1679-1683, https://www.ijsr.net/getabstract.php?paperid=2014495, DOI: https://dx.doi.org/10.21275/2014495