Antibacterial activity of ZnO nanomaterials against E. coli using bioreductors from pineapple extract

Abstract

Biosynthesis is a form of synthesis that involves the utilization of living organisms as biological agents. Zinc oxide is a versatile semiconductor material that exhibits antibacterial properties, thereby impeding the proliferation of germs. The objective of this research was to examine the impact of synthesis temperature on the properties of ZnO for its potential use as an antibacterial agent against E. coli. Zinc oxide (ZnO) nanomaterial powder was synthesized by a biosynthetic approach employing a combination of zinc nitrate hexahydrate (ZNH) and pineapple fruit extract. The synthesis temperature was varied at four different levels: 28°C, 50°C, 75°C, and 100°C. The physical properties of zinc oxide (ZnO) nanoparticles were examined using UV-Vis spectroscopy, X-ray diffraction (XRD), and field emission scanning electron microscopy (FESEM). The antibacterial activity was assessed using the disc diffusion method. This study provides empirical evidence supporting the efficacy of ZnO nanoparticles as antibacterial agents.