MARSILEA MINUTA(L.) PLANT EXTRACT MEDIATED SYNTHESIS OF GOLD NANOPARTICLE FOR CATALYTIC AND ANTIMICROBIAL APPLICATIONS

Niranjan Bala, Arpan Kool, Pradip Thakur, Sukhen Das*, Papiya Nandy, Ruma Basu

Gold nanoparticle (GNP) was synthesized using the plant extract of Marsilea minuta (L.) for catalytic and antibacterial applications. Formation of nanoparticle was confirmed by various physical and chemical characterization techniques. Morphology of synthesized NPs was analyzed using electron microscopy. GNP synthesized via this method was highly stable and their size was found to be ~ 25 nm. Green synthesized GNPs showed well catalytic activity in complete reduction of toxic para-nitrophenol (PNP) to para-aminophenol (PAP). GNP synthesized by this method showed better antibacterial potency against Escherichia coli and Staphylococcous aureus. It was observed that GNP synthesized via this method showed synergistic effect of chemically synthesized GNP and plant extract on antimicrobial activity.