EVALUATION OF ANTIMICROBIAL ACTIVITY OF SILVER NANOPARTICLES FROM SILVER RESISTANT ISOLATE ENTEROBACTER CLOACAE (MK163462) AGAINST CERTAIN CLINICAL PATHOGENS

Author(s): K. Muthulakshmi, C. Uma*, P. Sivagurunathan, S. Satheesh Kumar and K.Yoganathan

Abstract: A silver resistant bacterial isolate JWS-1 ioslated from jewellery waste contaminated soil was identified as Enterobacter cloacae (MK163462) based on 16S rRNA sequencing studies. The culture filtrate from Enterobacter cloacae was used for silver nanoparticle synthesis, the resultant silver nanoparticles were characterized by UV-visible spectrophotometer, FT-IR, SEM and XRD analysis. The synthesized silver nanoparticles were spherical and in the size range of 12-30nm. The silver nanoparticles demonstrated antimicrobial activity against certain gram positive and gram-negative pathogenic bacteria and fungi. The bacterium Enterobacter cloacae (MK163462) JWS-1 could use for the efficient synthesis of antimicrobial silver nanoparticles in an economical way.

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