PHYCOSYNTHESIS OF ZINC OXIDE NANOPARTICLES FROM CHLORELLA SP. AND ITS CHARACTERIZATION AND APPLICATION

Abstract

Chlorella sp. are bio-factory of several bioactive compounds which aid in the formation of many nanoparticles (NPs). The bioactive compounds present in algae are fucoxanthin, carotenoid, phycocyanin, etc. These bioactive compounds help in the diminution of metal precursor to their respective metal/metal oxide NPs. NPs synthesized from Chlorella sp. are biocompatible, ecofriendly, and non-toxic. “Phycosynthesis” is the term given to the synthesis NPs from algal species. ZnO NPs are very versatile because they possess biomedical properties like antimicrobial, anti-cancerous, and anti-diabetic activity. Moreover, they also have the ability to degrade pollutants such as heavy metals and dyes. In this report, biological synthesis ZnO NPs is performed from extract of Chlorella sp. and characterized using UV-vis spectrophotometer, Zeta sizer to identify the charge and the hydrodynamic size of the ZnO NPs. These ZnO NPs were then used to identify their antibacterial property against E.coli.