Fabrication of mesoporous carbonated hydroxyapatite/carbon nanotube composite coatings by microwave irradiation method

被引：22
作者：
Guo, Ya-Ping [1 ]
Yao, Yong-bo [1 ]
Ning, Cong-Qin [2 ]
Chu, Lian-Feng [1 ]
Guo, Ya-Jun [1 ]
机构：
[1] Shanghai Normal Univ, Dept Chem, Shanghai 200234, Peoples R China
[2] Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, Peoples R China
来源：
MATERIALS LETTERS | 2011年 / 65卷 / 06期
关键词：
Bioceramics; Porous materials; Hydroxyapatite; Carbon nanotubes; PHOSPHATE BUFFER SOLUTION; IN-VITRO; ELECTROPHORETIC DEPOSITION; BIOACTIVE GLASSES; APATITE COATINGS; ORGANIC MATRIX; NACRE COATINGS; TITANIUM; NANOCOMPOSITES; TRANSFORMATION;
D O I：
10.1016/j.matlet.2010.12.036
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Carbonated hydroxyapatite/carbon nanotube composite coatings (MHCs) with mesoporous structures were fabricated by electrophoretic deposition of nacre powders and carbon nanotubes on Ti6Al4V substrates followed by treatment with a phosphate buffer solution (PBS) by microwave irradiation method. The carbon nanotubes are dispersed uniformly on the whole MHCs. The conversion mechanism of the crack-free nacre/carbonate nanotube composite coatings (NCCs) to MHCs is a dissolution-precipitation reaction. After soaking in PBS, calcium ions are released from the nacre powders and react with phosphate ions to form carbonated hydroxyapatite nanoparticles. These nanoparticles aggregate to form mesopores with the pore sizes of similar to 3.9 nm among them. Simulated body fluid (SBF) immersion tests reveal that MHCs have a good in vitro bioactivity. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码：1007 / 1009
页数：3
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