Chinese Journal of Tissue Engineering Research ›› 2012, Vol. 16 ›› Issue (8): 1439-1442.doi: 10.3969/j.issn.1673-8225.2012.08.024

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Preparation and characterization of mesoporous titania coatings on titanium alloys

Feng Zhi-yuan1, Liu Bin1, Ran Hai-qiong1, Li Shan1, Wang Jin-qing2   

  1. 1College of Stomatology, Lanzhou University, Lanzhou  730000, Gansu Province, China; 2State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou  730000, Gansu Province, China
  • Received:2011-07-02 Revised:2011-09-30 Online:2012-02-19 Published:2012-02-19
  • Contact: Wang Jin-qing, Professor, Researcher, Doctoral supervisor, State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 73000, Gansu Province, China jqwang@licp.cas.cn
  • About author:Feng Zhi-yuan★, Studying for master’s degree, College of Stomatology, Lanzhou University, Lanzhou 73000, Gansu Province, China fzyfzylzu@126.com
  • Supported by:

    the National Natural Science Foundation of China, No. 50801065*; “Top Hundred Talents Program” of Chinese Academy of Sciences*

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Abstract:

BACKGROUND: Besides general advantages of mesoporous materials, mesoporous titania coatings have a good biocompatibility and antibiotic property which are suitable to modify the surfaces of titanium (Ti) and its alloy.
OBJECTIVE: To compare and analyze the morphology and structure of mesoporous titania coatings and conventional titania coatings in order to provide experimental and theoretical basis for the mesoporous titania coatings applying to the biomedical field.
METHODS: The template method and non-template method were adopted to prepare the mesoporous titania coatings and conventional titania coatings on the surface of Ti-6Al-4V alloy. Then, the surface morphology observation and microstructure analysis were characterized by scanning electron microscope, fast specific surface area/porosity analyzer, and X-ray diffractometer.
RESULTS AND CONCLUSION: It is validated that the stable mesoporous titania coatings have been prepared on the surface of Ti-6Al-4V alloy and this film displayed the characteristics of mesoporous structure possessing large specific surface and pore volume. The average pore diameter, specific surface area and pore volume were calculated to be 6.668 0 nm, 124.190 6 m²/g and      0.256 470 cm³/g, respectively. Mesoporous titania coatings are suited to modify the surface of medical Ti and its alloys.

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