Synthesis of ZnO nanoparticles-decorated spindle-shaped graphene oxide for application in synergistic antibacterial activity

Journal of Photochemistry and Photobiology. B, Biology
Linlin ZhongKyusik Yun

Abstract

A novel spindle-shaped graphene oxide (GO) was performed by the self-assembly of graphene oxide in the DMF. Loading uniform ZnO nanoparticles on spindle-shaped GO is used to study antibacterial property. In the ZnO/GO composites, spindle-shaped GO possessed special structure that was crumpled together with a length of ~1.0 μm and a mean diameter of 100 nm, and spherical ZnO particles with a diameter of 50 nm were fully characterized by field-emission scanning electron microscope (FE-SEM), a high-resolution transmission electron microscope (HR-TEM) and X-ray diffraction (XRD). Due to the antibacterial advantages of ZnO and GO, the mechanism underlying the interaction between composites and bacteria is elucidated in this work. The results showed that the composites could prevent bacterial proliferation and could destroy bacterial integrated membrane by the release of Zn2+ and generation of abundant reactive oxygen species (ROS). The typical gram-negative (Escherichia coli and Salmonella typhimurium) and gram-positive (Bacillus subtilis and Enterococcus faecalis) bacteria were used to investigate the significant antibacterial activity of ZnO/GO composites. The minimum inhibit concentration (MIC) value of ZnO/GO composites for the ...Continue Reading

Citations

Apr 11, 2020·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Mario SalmeriMaria Elena Fragalà
May 16, 2019·Nanomaterials·Parveen KumarBo Liu
Jul 31, 2020·Nanomaterials·Florina PogaceanStela Pruneanu
Oct 22, 2020·Journal of Materials Chemistry. B, Materials for Biology and Medicine·Tianyi ZhengXiaoping Yang
Dec 20, 2020·Colloids and Surfaces. B, Biointerfaces·Tahereh Seifi, Ali Reza Kamali

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