中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Inhibitory effect of super-hydrophobicity on silver release and antibacterial properties of super-hydrophobic Ag/TiO2 nanotubes

文献类型:期刊论文

作者Zhang, Licheng1; Zhang, Lihai1; Yang, Yun2; Zhang, Wei1; Lv, Houchen1; Yang, Fei3; Lin, Changjian2; Tang, Peifu1
刊名JOURNAL OF BIOMEDICAL MATERIALS RESEARCH PART B-APPLIED BIOMATERIALS
出版日期2016-07-01
卷号104期号:5页码:1004-1012
关键词Ag TiO2 nanotubes super-hydrophobic silver release bacterial adhesion antibacterial activity
英文摘要The antibacterial properties of super-hydrophobic silver (Ag) on implant surface have not yet to be fully illuminated. In our study, we investigate the protective effects of super-hydrophobic coating of silver/titanium dioxide (Ag/TiO2) nanotubes against bacterial pathogens, as well as its pattern of Ag release. Ag/TiO2 nanotubes are prepared by a combination of electrochemical anodization and pulse electrodeposition. The super-hydrophobic coating is prepared by modifying the surface of Ag/TiO2 nanotubes with 1H, 1H, 2H, 2H-perfluorooctyl-triethoxysilane (PTES). Surface features and Ag release are examined by SEM, X-ray photoelectron spectroscopy, contact-angle measurement, and inductively coupled plasma-mass spectrometry (ICP-MS). The antibacterial activity of super-hydrophobic coating Ag/TiO2 nanotubes is investigated both in vitro and in vivo. Consequently, the super-hydrophobic coating on Ag/TiO2 nanotubes shows a regularly arranged structure; and nano-Ag particles (10-30 nm) are evenly distributed on the surface or inside the nanotubes. The contact angles of water on the super-hydrophobic coating Ag/TiO2 nanotubes are all above 150 degrees. In addition, the super-hydrophobic character displays a certain conserved effect that contributes to the sustained release of Ag. The super-hydrophobic Ag/TiO2 nanotubes are also effective in inhibiting bacterial adhesion, killing the adhering bacteria and preventing postoperative infection in rabbits. Therefore, it is expected that the super-hydrophobic Ag/TiO2 nanotubes which can contain the release of Ag, leading to stable release, may show a consistent surface antibacterial capability. (c) 2015 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 104B: 1004-1012, 2016.
收录类别SCI
语种英语
源URL[http://ir.iccas.ac.cn/handle/121111/35531]  
专题化学研究所_高分子物理与化学实验室
作者单位1.Chinese Peoples Liberat Army Gen Hosp, Dept Orthopaed, Beijing 100853, Peoples R China
2.Xiamen Univ, Coll Chem & Chem Engn, State Key Lab Phys Chem Solid Surfaces, Xiamen 361005, Peoples R China
3.Chinese Acad Sci, Beijing Natl Lab Mol Sci, Inst Chem, State Key Lab Polymer Phys & Chem, Beijing 100190, Peoples R China
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Zhang, Licheng,Zhang, Lihai,Yang, Yun,et al. Inhibitory effect of super-hydrophobicity on silver release and antibacterial properties of super-hydrophobic Ag/TiO2 nanotubes[J]. JOURNAL OF BIOMEDICAL MATERIALS RESEARCH PART B-APPLIED BIOMATERIALS,2016,104(5):1004-1012.
APA Zhang, Licheng.,Zhang, Lihai.,Yang, Yun.,Zhang, Wei.,Lv, Houchen.,...&Tang, Peifu.(2016).Inhibitory effect of super-hydrophobicity on silver release and antibacterial properties of super-hydrophobic Ag/TiO2 nanotubes.JOURNAL OF BIOMEDICAL MATERIALS RESEARCH PART B-APPLIED BIOMATERIALS,104(5),1004-1012.
MLA Zhang, Licheng,et al."Inhibitory effect of super-hydrophobicity on silver release and antibacterial properties of super-hydrophobic Ag/TiO2 nanotubes".JOURNAL OF BIOMEDICAL MATERIALS RESEARCH PART B-APPLIED BIOMATERIALS 104.5(2016):1004-1012.

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来源:化学研究所

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