Evaluation of antimicrobial activity of biologically synthesized silver nanoparticles from filamentous fungi
نویسندگان
چکیده
In this paper we have reported the biosynthesis of silver nanoparticles using Penicillium sp. was isolated from the soil sample collected from Pallavakam beach of Chennai, Tamil Nadu India. When the fungal biomass was challenged with 1mM Silver nitrate (AgNO3) results in the change of solution color in to dark brown shows the formation of Silver nanoparticles(SNP).These Silver nanoparticles were characterized by UVVis spectrophotometric analysis which shows the absorption peak at 419nm confirms presence and formationof silver nanoparticle. These biosynthesized SNP were further characterized by X-ray diffraction spectroscopy (XRD) which determine the metallic nature of the SNP and Field Emission Electron Microscopy (FESEM) which shows the silver nanoparticles are spherical,well dispersed and particle particle size is around 20-45nm. These silver nanoparticles showed good antibacterial activity against various bacterial pathogens and also enhances the antibacterial activity of Amoxicillin were studied. Key word: Penicillium sp., Silver nanoparticles, FESEM, UV-vis spectrophotometer, XRD.
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