GREEN SYNTHESIS OF ZINC OXIDE NANOPARTICLES USING SOLANUM NIGRUM LEAF EXTRACT AND OVERVIEW OF THEIR ANTIBACTERIAL ACTIVITIES

In the current study, we have detailed the green synthesis of ZnO nanoparticles (Zn-NPs) employing the capping ingredient Solanum Nigrum. With the use of X-ray diffraction (XRD), Fourier transform infrared (FT-IR) spectroscopy, UV-Vis absorption, and antibacterial investigations, the functionalization of ZnO particles through Solanum Nigrum leaves extract induced bio-reduction of ZnO was examined. According to XRD analysis, the produced NPs have a wurtzite hexagonal structure and an average grain size of 27.6 nm. The functional groups are further shown by FT-IR spectra. The indirect band gap is estimated to be 3.38 eV based on UV-Vis DRS studies. It has been proven that the particle size variations and surface area-to-volume ratios of ZnO-NPs are responsible for significantly higher antibacterial activities. According to the antibacterial study, the ZnO-NPs inhibit the growth of both normal as well as pathogenic bacterium and hence might be used for coating surgical equipment for performing aseptic operators in the medical field.