کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1659485 | 1008381 | 2009 | 8 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: The composite films of gradient TiO2-based/nano-scale hydrophilic sodium titanate: Biomimetic apatite induction and cell response The composite films of gradient TiO2-based/nano-scale hydrophilic sodium titanate: Biomimetic apatite induction and cell response](/preview/png/1659485.png)
Chemical treatment was performed to modify the surfaces of the TiO2-based (TOB) film containing P for improving its bioactivity. The apatite-forming ability of the chemically treated TOB (C-TOB) film was enhanced due to the formation of hydroxyl-functionalized surface during the SBF immersion process. However, further heat treatment of the C-TOB films formed crystalline sodium titanate, showing poor ability to release Na+ ions, which does not facilitate the formation of hydroxyl-functionalized surface, thus lowering the apatite-forming ability. Firstly, amorphous Ca- and P-containing precipitates formed during the SBF immersion process, eventually transformed to crystalline biomimetic apatite, exhibiting a porous structure on two-scales of micron and nanometer levels. The preliminary cell experiment showed that the C-TOB film has good biocompatibility.
Journal: Surface and Coatings Technology - Volume 204, Issue 3, 25 October 2009, Pages 372–379