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学科主题口腔医学
Graphene oxide/hydroxyapatite composite coatings fabricated by electrophoretic nanotechnology for biological applications
Li, Ming1; Liu, Qian1; Jia, Zhaojun1; Xu, Xuchen1; Cheng, Yan1; Zheng, Yufeng1,2; Xi, Tingfei1; Wei, Shicheng1,3
刊名CARBON
2014-02-01
DOI10.1016/j.carbon.2013.09.080
67页:185-197
收录类别SCI
文章类型Article
WOS标题词Science & Technology
类目[WOS]Chemistry, Physical ; Materials Science, Multidisciplinary
资助者National Natural Science Foundation of China ; National High Technology Research and Development Program of China ; National Basic Research Program (973) of China ; National Natural Science Foundation of China ; National High Technology Research and Development Program of China ; National Basic Research Program (973) of China
研究领域[WOS]Chemistry ; Materials Science
关键词[WOS]TITANIUM SUBSTRATE ; GRAPHITE OXIDE ; MECHANICAL-PROPERTIES ; IN-VITRO ; HYDROXYAPATITE ; DEPOSITION ; NANOCOMPOSITES ; LAYER ; BIOCOMPATIBILITY ; CELLS
英文摘要

Graphene oxide (GO) was firstly employed as nanoscale reinforcement fillers in hydroxyapatite (HA) coatings by a cathodic electrophoretic deposition process, and GO/HA coatings were fabricated on pure Ti substrate. The transmission electron microscopy observation and particle size analysis of the suspensions indicated that HA nanoparticles were uniformly decorated on GO sheets, forming a large GO/HA particle group. The addition of GO into HA coatings could reduce the surface cracks and increase the coating adhesion strength from 1.55 +/- 0.39 MPa (pure HA) to 2.75 +/- 0.38 MPa (2 wt.% GO/HA) and 3.3 +/- 0.25 MPa (5 wt.% GO/HA), respectively. Potentiodynamic polarization and electrochemical impedance spectroscopy studies indicated that the GO/HA composite coatings exhibited higher corrosion resistance in comparison with pure HA coatings in simulated body fluid. In addition, superior (around 95% cell viability for 2 wt.% GO/HA) or comparable (80-90% cell viability for 5 wt.% GO/HA) in vitro biocompatibility were observed in comparison with HA coated and uncoated Ti substrate. (C) 2013 Elsevier Ltd. All rights reserved.

语种英语
所属项目编号31070846 ; 30870623 ; 2011AA030103 ; 2009CB930004 ; 2012CB619102
资助者National Natural Science Foundation of China ; National High Technology Research and Development Program of China ; National Basic Research Program (973) of China ; National Natural Science Foundation of China ; National High Technology Research and Development Program of China ; National Basic Research Program (973) of China
WOS记录号WOS:000329379300021
引用统计
被引频次:80[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.bjmu.edu.cn/handle/400002259/56631
专题北京大学口腔医学院
作者单位1.Peking Univ, Acad Adv Interdisciplinary Studies, Ctr Biomed Mat & Tissue Engn, Beijing 100871, Peoples R China
2.Peking Univ, Coll Engn, Dept Mat Sci & Engn, Beijing 100871, Peoples R China
3.Peking Univ, Sch Stomatol, Dept Oral & Maxillofacial Surg, Beijing 100081, Peoples R China
推荐引用方式
GB/T 7714
Li, Ming,Liu, Qian,Jia, Zhaojun,et al. Graphene oxide/hydroxyapatite composite coatings fabricated by electrophoretic nanotechnology for biological applications[J]. CARBON,2014,67:185-197.
APA Li, Ming.,Liu, Qian.,Jia, Zhaojun.,Xu, Xuchen.,Cheng, Yan.,...&Wei, Shicheng.(2014).Graphene oxide/hydroxyapatite composite coatings fabricated by electrophoretic nanotechnology for biological applications.CARBON,67,185-197.
MLA Li, Ming,et al."Graphene oxide/hydroxyapatite composite coatings fabricated by electrophoretic nanotechnology for biological applications".CARBON 67(2014):185-197.
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