A study on evaluation of antimicrobial property of biologically synthesized silver and zinc oxide nanoparticles against human pathogens

Author : Vidya Pradeep and I. Arulpandi

In the present study, antimicrobial activity of silver (Ag NPs) and Zinc oxide (ZnO NPs) nanoparticles synthesized from Pichia fermentans were tested against common human pathogens. The nanoparticles were biosynthesized and characterized by XRD, TEM, EDX and FTIR analysis. The average size of Ag NPs was 60nm and ZnO NPs was 28nm. The study on antimicrobial activity of individual and combined nanoparticles showed that the ZnO NPs had greater antimicrobial activity than Ag NPs. The combined Ag NPs and ZnO NPs showed greater antimicrobial properties than their individual performance.

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