Enhancement of Biomimetic Apatite Forming Ability of Calcium Phosphate Glass-Ceramic by a Hydrothermal Treatment
Enhancement of Biomimetic Apatite Forming Ability of Calcium Phosphate Glass-Ceramic by a Hydrothermal Treatment
复制标题
水热处理增强磷酸钙微晶玻璃仿生磷灰石形成能力
DOI：
10.2109/jcersj.111.633
复制
发表时间：
2003
影响因子：
1.1
通讯作者：
M. Nogami
中科院分区：
文献类型：
--
作者：
T. Kasuga;T. Fujimoto;M. Nogami
60 CaO·30 P2 O 5·7 Na 2 O·3 TiO 2微晶玻璃由β-Ca 3（PO 4）2和β-Ca 2 P2 O 7晶相以及少量的玻璃态磷酸钙相组成，玻璃态磷酸钙相中含有钠离子和钛离子，在37°C模拟体液（SBF）中具有磷灰石形成能力;在玻璃-陶瓷上，在SBF中浸泡20天后形成骨状磷灰石。在本工作中，通过在水中在140°C下水热处理1 h来增强玻璃陶瓷在SBF中形成磷灰石的能力;浸泡10天后，玻璃陶瓷完全被骨状磷灰石覆盖。在处理过程中，表面周围的磷酸盐玻璃相急剧溶解，但几乎没有钛离子溶解。X射线光电子能谱分析表明，在处理过程中，在表面周围形成了新的水合二氧化钛基团，这可能会诱导磷灰石的成核。
60CaO.30P 2 O 5 .7Na 2 O.3TiO 2 glass-ceramic, which consists of crystalline β-Ca 3 (PO 4 ) 2 and β-Ca 2 P 2 O 7 phases with a small amount of glassy calcium phosphate phase including sodium and titanium ions, has an apatite-forming ability in simulated body fluid (SBF) at 37°C; on the glass-ceramic, the bonelike apatite forms after 20 days of soaking in SBF. In the present work, the apatite-forming ability in SBF of the glass-ceramic was enhanced by a hydrothermal treatment in water at 140°C for 1 h; the glass-ceramic was completely covered with bonelike apatite after 10 days of soaking. The phosphate glassy phase around the surface dissolved drastically during the treatment but almost no titanium ion dissolved. X-ray photoelectron spectroscopic analysis implied that the hydrated titania groups, which may induce nucleation of the apatite, form newly around the surface during the treatment.
DOI：
10.1111/j.1151-2916.1991.tb07132.x
发表时间：
1991-07-01
影响因子：
3.9
作者：
HENCH, LL
通讯作者：
HENCH, LL
B型Ti-29Nb-13Ta-4.6Zr合金生物活性磷酸钙反相微晶玻璃涂层
DOI：
--
发表时间：
2003
期刊：
Biomaterials Vol.24
影响因子：
--
作者：
T.Kasuga;M.Nogami;M.Niinomi;T.Hattori
通讯作者：
T.Hattori