期刊
ACS BIOMATERIALS SCIENCE & ENGINEERING
卷 5, 期 6, 页码 2732-2739出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsbiomaterials.9b00061
关键词
efficient antibacterial; cross-linked graphene oxide membrane; stability; photothermal effect; reusable
资金
- National Natural Science Foundation of China [21674080]
- 131 Talents Program of Tianjin
- Distinguished Professor of Tianjin
- Leading Talents Program of the Tianjin Educational Committee
- Key Program of Tianjin Municipal Natural Science Foundation [18JCZDJC37700]
- Training Project of Innovation Team of Colleges and Universities in Tianjin [TD13-5020]
Bacterial infections have been considered to be one of the greatest threats to human health. In this study, a covalently cross-linked GO membrane was fabricated through vacuum-assisted filtration self-assembly after being consequentially functionalized with dopamine (GO-PDA) and branched polyethylenimine (GO-PDA-PEI). The characteristics of GO, GO-PDA, and GO-PDA-PEI membranes were confirmed by X-ray diffraction, Fourier transform infrared measurements, scanning electron microscopy images, static water contact angle measurements, etc. The GO-PDA-PEI membrane showed extraordinary stability, compared with GO and GO-PDA, confirmed by ultrasonication treatment. Notably, the GO-PDA-PEI membrane exhibited excellent antibacterial efficiency for both Gram-positive Staphylococcus aureus and Gram-negative Escherichia coli (more than 99%) upon irradiation by a 795 nm near-infrared (NIR) laser. Interestingly, the GO-PDA-PEI membrane can be recycled, that is, the photothermal effect, as well as the antibacterial activity of the GO-PDA-PEI membrane, remained the same after 5-time recycling. Hence, the proposed system has great potential for future design of recyclable, highly stable, superior bacteriostatic membrane materials.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据