Preparation, characterization, and antibacterial activity of silver nanoparticle-decorated graphene oxide nanocomposite

ACS Applied Materials & Interfaces
Wei ShaoSonglin Zuo

Abstract

In this work, we report a facile and green approach to prepare a uniform silver nanoparticles (AgNPs) decorated graphene oxide (GO) nanocomposite (GO-Ag). The nanocomposite was fully characterized by transmission electron microscopy (TEM), Fourier transform infrared (FTIR) spectra, ultraviolet-visible (UV-vis) absorption spectra, and X-ray photoelectron spectroscopy (XPS), which demonstrated that AgNPs with a diameter of approximately 22 nm were uniformly and compactly deposited on GO. To investigate the silver ion release behaviors, HEPES buffers with different pH (5.5, 7, and 8.5) were selected and the mechanism of release actions was discussed in detail. The cytotoxicity of GO-Ag nanocomposite was also studied using HEK 293 cells. GO-Ag nanocomposite displayed good cytocompatibility. Furthermore, the antibacterial properties of GO-Ag nanocomposite were studied using Gram-negative E. coli ATCC 25922 and Gram-positive S. aureus ATCC 6538 by both the plate count method and disk diffusion method. The nanocomposite showed excellent antibacterial activity. These results demonstrated that GO-Ag nanocomposite, as a kind of antibacterial material, had a great promise for application in a wide range of biomedical applications.

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Citations

Mar 20, 2016·Journal of Colloid and Interface Science·Huai-Zhi ZhangShuang-Yan Huan
Mar 20, 2016·Biosensors & Bioelectronics·Santanu PatraPrashant K Sharma
Feb 19, 2016·Dalton Transactions : an International Journal of Inorganic Chemistry·Mahima Khandelwal, Anil Kumar
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Jul 30, 2016·International Journal of Biological Macromolecules·Ahmed Salama, Mohamed El-Sakhawy
Sep 21, 2016·International Journal of Molecular Sciences·Xi-Feng ZhangSangiliyandi Gurunathan
Jan 6, 2017·Nanoscale·Mauricio D Rojas-AndradeShaowei Chen
Feb 28, 2017·ACS Applied Materials & Interfaces·Dongdong SunWeiyun Wang
Feb 25, 2017·Chemistry : a European Journal·Yan LiuJianguang Zhou
Apr 20, 2017·ACS Applied Materials & Interfaces·Bijay Kumar PoudelJeong Hoon Byeon
May 10, 2017·ACS Applied Materials & Interfaces·Fan HuangJianfeng Liu
May 12, 2018·Journal of Materials Science. Materials in Medicine·Bingbing FanRui Zhang
Aug 10, 2018·Physical Chemistry Chemical Physics : PCCP·Prompong PienpinijthamYukihiro Ozaki
Dec 13, 2018·Journal of Applied Oral Science : Revista FOB·Ruixue WuWei Zhao
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Sep 3, 2020·Royal Society Open Science·Md Toasin Hossain AunkorAbul Kalam Azad

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