Enhancement of apatite-forming ability of parallely aligned Ti-substrates with optimum gaps by autoclaving
Enhancement of apatite-forming ability of parallely aligned Ti-substrates with optimum gaps by autoclaving
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DOI：
10.2109/jcersj2.118.483
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发表时间：
2010-06-01
影响因子：
1.1
通讯作者：
Osaka, Akiyoshi
中科院分区：
文献类型：
--
作者：
Nakao, Yoko;Sugino, Atsushi;Osaka, Akiyoshi
纯钛片经过空气氧化并在 121 摄氏度下高压灭菌 20 分钟，然后在 GRAPE (R) 装置中对齐各对样本，即两块矩形基材以最佳间隙宽度彼此平行对齐（空间设计）。然后，将它们浸泡在小久保的模拟体液（SBF）中7天，以阐明在特定空间设计下高压灭菌如何影响基材的体外磷灰石形成能力。高压灭菌的样品沉积了更多数量的磷灰石颗粒，并且比仅在空气中加热的样品表现出更强的磷灰石X射线衍射。 X射线光电子能谱（XPS）分析表明，热氧化钛样品上化学吸附的OH和Ti-OH基团的量因高压灭菌而增加。这些结果得出这样的结论：表面上Ti-OH基团以及OH(s)和H2O基团的增加增强了空间设计的体外磷灰石形成能力。 (C)2010 日本陶瓷学会。版权所有。
Pure titanium pieces were air-oxidized and autoclaved at 121 degrees C for 20 min before aligning various pairs of specimens in the GRAPE (R) set-up, i.e., two pieces of rectangular substrates were aligned parallel to each other with optimum gap width (spatial design). Then, they were soaked in Kokubo's simulated body fluid (SBF) for 7 days to clarify how the autoclaving is to affect the in vitro apatite-forming ability on the substrates under the specific spatial design. Autoclaved specimens deposited a larger number of apatite particles, and showed stronger apatite X-ray diffraction than the specimen only heated in air. X-ray photoelectron spectroscopy (XPS) analysis indicated that the amount of chemically adsorbed OH and Ti-OH groups on the thermally oxidized titanium specimens increased by autoclaving. These results lead to the conclusion that the increase of Ti-OH groups and OH(s) and H2O groups on the surface enhanced the in vitro apatite-forming ability on spatial design. (C)2010 The Ceramic Society of Japan. All rights reserved.