FUNGAL STRAIN GUIDED BOTTOM-UP SYNTHESIS OF SILVER NANOPARTICLES AND ELUCIDATION OF ITS ANTI-BACTERIAL ACTIVITY

Author(s): Moumita Karmakar and Rina Rani Ray*

Abstract: Green synthesis of silver nanoparticles (AgNPs) were accomplished using biological source of fungal strain Rhizopus oryzae PR7. UV-Vis spectroscopy measurement of prepared AgNPs revealed a characteristic peak at ~420 nm. FT-IR spectroscopy indicated an inverse peak of ~330 cm-1, 1450 cm-1. The effect of enzyme concentration over the relative production of AgNPs has been also studied. The rate kinetics for the production of AgNPs showed that maximum conversion to its nano form was achieved within 60 mins. Anti-bacterial studies of prepared AgNPs performed over various Gram positive and Gram-negative target microorganisms revealed the effectiveness of Nano silver particles as antibacterial agents.

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