Fabrication and Characterization of Cu Doped CeO₂ by Hydrothermal Process for Antimicrobial Activity

Abstract

Cu doped CeO2 nanopowder was synthesized by hydrothermal process at 180°C for 2~10h. The average size and distribution of the synthesized Cu doped CeO2 nanopowder was controlled by reaction times. The crystallinity of the synthesized Cu doped CeO2 nanoparticles was investigated by X-ray diffraction (XRD). The morphology of the synthesized Cu doped CeO2 nanoparticles was observed by FE-SEM. The specific surface area of the synthesized Cu doped CeO2 nanoparticles was measured by BET. The crystal size of the synthesized Cu doped CeO2 nanoparticles decreased with decreasing reaction times. The average size of the synthesized Cu doped CeO2 nanoparticles was below 10nm and narrow, respectively. The shape of the synthesized Cu doped CeO2 nanoparticles was spherical type. The specific surface area of the synthesized Cu doped CeO2 nanoparticles increased with decreasing reaction times. Antibacterial properties of Cu doped CeO2 were analyzed by MIC method. The synthesized Cu doped CeO2 nanopowders showed antibacterial properties against E.coli and B.sub bacteria.

Excellent antimicrobial performance of co-doped magnetite double-layered ferrofluids fabricated from natural sand

“…The increased ability of ferrofluids to inhibit the growth of microbes along with the increased Co 2+ composition was attributed to the decrease in the size of magnetic particles. Theoretically, by decreasing the particle size, the surface area of the particles surrounding the cell wall gets larger, thus accelerating the damage of the microbial cells ( Choi et al, 2019 ). The small magnetic nanoparticles easily penetrate the cell membrane and react with intracellular oxygen to disrupt the generation of oxidative stress ( Nehra et al, 2018 ).…”

Synthesis and characterisation of Fe3O4/MWCNT/ZnO nanocomposites covered by a soft template as a new antibacterial agent

“…Fe 3 O 4 and ZnO nanoparticles are currently considered promising metal oxide antibacterial agents. Fe 3 O 4 nanoparticles have a large surface area, so they can easily cover the bacterial cell wall and accelerate bacterial cell damage [21]. Fe 3 O 4 particles have been known to effectively inhibit the growth of gram-negative bacteria, especially E. coli [21,22].…”

“…Fe 3 O 4 nanoparticles have a large surface area, so they can easily cover the bacterial cell wall and accelerate bacterial cell damage [21]. Fe 3 O 4 particles have been known to effectively inhibit the growth of gram-negative bacteria, especially E. coli [21,22]. Additionally, ZnO is a biocompatible material, because it has non-allergenic, non-toxic, and non-irritating characteristics [23,24].…”