Biofabrication of Zinc Oxide Nanoparticles Using

This article discusses a simple, cost-effective, and biocompatible method for biosynthesis of ZnONPs. For the first time, Streptomyces cyaneofuscatus cell free filterate, as a reducing and stabilizing agent, was used to prepare ZnONPs using zinc acetate as metal precursor. The prepared ZnONPs were characterized using multiple analytical techniques. The UV-Vis spectrum analysis of the biosynthesized ZnONPs exhibited an absorption peak at 375 nm. Fourier-transform infrared (FT-IR) spectroscopy suggested the presence of different functional groups of microbial biomolecules. XRD verified hexagonal wurtzite crystalline structure of ZnONPs. The zeta potential analysis showed good stability of ZnONPs (-26.6 mV). Furthermore, the EDX analysis explained the 73.11 % of zinc (Zn) and 26.89% of oxygen (O) elemental structure of fabricated ZnONPs which indicated the successful fabrication of ZnONPs by S. cyaneofuscatus.