%0 Journal Article
%T Bone-like Apatite Formation on Calcium Phosphate Dense Ceramicsin Dynamic SBF<br>致密磷酸钙陶瓷在动态SBF中类骨磷灰石层形成研究
%A DUAN You-Rong
%A WANG Chao-Yuan
%A CHEN Ji-Yong
%A ZHANG Xing-Dong
%A <br>段友容
%A 王朝元
%A 陈继镛
%A 张兴栋
%J 无机材料学报
%D 2002
%I Science Press
%X Bone-like apatite formation on the surface of calcium phosphate ceramics has been believed to be the necessary step that new bone grows on the ceramics and to be relative to the osteoinductivity of the material. The research of the factors effecting bone-like apatite formation is a great help to understanding the mechanism of osteoinduction. This study was a comparative study of in vitro formation of bone-like apatite on the surface of dense calcium phosphate ceramics with SBF flowing at different speeds. The results showed that the rough surface was beneficial to the formation of bone-like apatite and the apatite formed faster in 1.5 SBF than in SBF. Rough surface, namely, larger surface area, increased the dissolution of Ca2+, HPO42- and higher concentration of Ca2+ and HPO42- ions of SBF was advantageous to the accumulation of Ca2+, HPO42-, PO43- near the ceramic surface. Local supersaturating concentration of Ca2+, HP042-. PO43- near sample surface was critical for nucleation of apatite on the surface of sample.
%K dense calcium phosphate ceramics
%K dynamic SBF
%K bone-like apatite<br>致密磷酸钙陶瓷
%K 动态SBF
%K 类骨磷灰石
%K 生物陶瓷
%K 生物材料
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=84529CA2B2E519AC&jid=ABC0063016AF57E1C73EF43C8D2212BD&aid=63DD6C5BAE0093AE&yid=C3ACC247184A22C1&vid=BCA2697F357F2001&iid=38B194292C032A66&sid=385E3C2062167B88&eid=C7A2B92569DF5458&journal_id=1000-324X&journal_name=无机材料学报&referenced_num=5&reference_num=13