One-step modification of nano-hydroxyapatite coating on titanium surface by hydrothermal method

被引:35
作者
Hu, Xixue [2 ,4 ]
Shen, Hong [3 ]
Cheng, Yan [2 ]
Xiong, Xiaoling [2 ]
Wang, Shenguo [3 ]
Fang, Jing [2 ,4 ]
Wei, Shicheng [1 ,2 ]
机构
[1] Peking Univ, Sch Stomatol, Dept Oral & Maxillofacial Surg, Beijing 100081, Peoples R China
[2] Peking Univ, Acad Adv Interdisciplinary Studies, Ctr Biomed Mat & Tissue Engn, Beijing 100871, Peoples R China
[3] Chinese Acad Sci, Inst Chem, State Key Lab Polymer Phys & Chem, BNLMS, Beijing 100190, Peoples R China
[4] Peking Univ, Coll Engn, Beijing 100871, Peoples R China
基金
中国博士后科学基金;
关键词
Titanium; Surface modification; Nano-HA; Hydrothermal treatment; Cell affinity; PLASMA-SPRAYED HYDROXYAPATITE; CALCIUM-PHOSPHATE COATINGS; SIMULATED BODY-FLUID; IN-VITRO; LASER DEPOSITION; IMPLANT SURFACES; ION-IMPLANTATION; CELL RESPONSE; PURE TITANIUM; THIN-FILMS;
D O I
10.1016/j.surfcoat.2010.08.088
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
Since metallic biomaterials used for orthopedic and dental implants possess a paucity of reactive functional groups, bioactivity modification of these materials is challenging. To enhance osteoconductivity, sandblasted and acid etched titanium (SIA-Ti) discs were hydrothermally treated in simple suspension of hydroxyapatite (HA) by a one-step method in the present work. Change of surface chemistry, surface morphology of samples, and structure of formed nano-HA were investigated by X-ray photoelectron spectrometry (XPS), scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR) and X-ray powder diffraction (XRD). The results demonstrated that the concentration of hydroxyl groups increased after hydrothermal treatment The ability of the titanium surface to form nano-HA was enhanced by increasing the hydrothermal treatment temperature and time. The bonding strength of the formed nano-HA coating, examined by an ultrasonic cleaning process, was higher than that of HA coating generated directly by HA suspension deposition. Culturing of MC3T3-E1 cells on the SLA-Ti and HT-Ti discs in vitro showed that HT-Ti was more favorable for cell attachment and differentiation than SIA-Ti. Hence the one-step hydrothermal treatment with HA suspension was a simple, effective and promising method for HA coating modification of titanium implants. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码:2000 / 2006
页数:7
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