کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10706842 | 1023506 | 2005 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Biomimetic apatite induction on Ca-containing titania
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
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چکیده انگلیسی
To understand the apatite induction mechanism in SBF, Ca-containing titania film without CaTiO3 phase was fabricated by micro-arc oxidation (MAO) at low voltage (230 V) in an electrolytic solution containing calcium acetate monohydrate. Macro-porous, Ca-containing titania film was formed on the titanium substrate and the oxidized layer was composed of anatase and rutile phase. When immersed in 1.5SBF, no apatite was induced in the MAO specimen similar to the CaTiO3-containing titania. However, after hydrothermal treatment at 250 °C for 2 h, numerous precipitates, presumably calcium phosphates, were formed on the surface of the titania after 7 day immersion and titania surface was entirely covered with apatite after 14 days of immersion. This study clearly showed that Ca-containing titania has the capability to induce apatite in SBF and hydrothermal treatment plays a decisive role in apatite induction, particularly producing surface hydroxyl groups such as Ca-OH or Ti-OH.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Current Applied Physics - Volume 5, Issue 5, July 2005, Pages 512-515
Journal: Current Applied Physics - Volume 5, Issue 5, July 2005, Pages 512-515
نویسندگان
Hyun Sam Ryu, Won-Hoon Song, Seong-Hyeon Hong,