Effect of CuO Nanoparticles on Antimicrobial Activity Prepared by Sol-Gel Method

摘要

Study of structural and antimicrobial properties of copper oxide nanoparticles synthesized by sol-gel combustion method. XRD, FTIR techniques were used to characterize. The nanoparticles XRD pattern showed the crystalline of nature of CuO NPS. XRD spectra confirmed the formation of single phase CuO nanoparticles. Crystallite size was found to increase with an increase in annealing temperature due to atomic diffusion a minimum crystallite size of (15.3)nm was observed in the case of CuO NPS annealed at (200)°C. Transmission electron microscopy results corroborate well with XRD results. CuO nanoparticles showed excellent antibacterial activity against various bacterial strains (E.Coli, P. aeruginosa) bacteria. The antibacterial activity of CuO NPS was found to be size dependent.