Single-walled carbon nanotubes/hydroxyapatite coatings on titanium obtained by electrochemical deposition
Single-walled carbon nanotubes/hydroxyapatite coatings on titanium obtained by electrochemical deposition
复制标题
电化学沉积钛表面单壁碳纳米管/羟基磷灰石涂层
DOI：
10.1016/j.apsusc.2014.01.009
复制
发表时间：
2014-03-15
影响因子：
6.7
通讯作者：
Bao, Hong
中科院分区：
文献类型：
--
作者：
Pei, Xibo;Zeng, Yongxiang;Bao, Hong
采用电化学沉积技术成功制备了单壁碳纳米管/羟基磷灰石（SWNTs/HA）复合涂层。通过向电解质中加入功能化的单壁碳纳米管，将不同浓度的单壁碳纳米管掺入磷灰石涂层中。结果表明，复合涂层具有较好的结晶度，且涂层均匀、无裂纹。此外，SWNTs/HA涂层的最高结合强度达到25.7MPa，比纯HA涂层提高了近70%。体外细胞生物相容性试验表明，SWNTs/HA复合涂层的体外生物活性高于纯HA涂层和纯钛。表明单壁碳纳米管/羟基磷灰石复合涂层在生物材料领域，特别是金属植入物方面具有巨大的应用潜力。(C)2014年爱思唯尔B。V.保留所有权利。
Single-walled carbon nanotubes/hydroxyapatite (SWNTs/HA) composite coatings were successfully fabricated by electrochemical deposition technique. Different concentrations of SWNTs were incorporated into the apatite coating by adding functionalized SWNTs into the electrolyte. Homogeneous and crack-free SWNTs/HA composite coatings were achieved and the coatings had higher crystallinity compared to pure HA coating. In addition, the highest bonding strength of the SWNTs/HA coating reached 25.7 MPa, which was nearly 70% higher than that of pure HA coating. The in-vitro cellular biocompatibility tests revealed that SWNTs/HA composite coatings exhibited higher in-vitro bioactivity than that of pure HA coating and pure titanium (Ti). It suggests that SWNTs/HA composite coating may have enormous potential applications in the field of biomaterials, especially for the metal implants. (C) 2014 Elsevier B. V. All rights reserved.