Hydrothermal Synthesis of Bioactive Titanium Oxide-CaCO3 Films with Aqueous Ca(OH)2/KHCO3 on Pure Ti
Hydrothermal Synthesis of Bioactive Titanium Oxide-CaCO3 Films with Aqueous Ca(OH)2/KHCO3 on Pure Ti
复制标题
纯钛上Ca(OH)2/KHCO3水溶液水热合成生物活性氧化钛-CaCO3薄膜
DOI：
10.4144/rpsj.59.22
复制
发表时间：
2012
期刊：
影响因子：
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通讯作者：
Terauchi Shuntaro
中科院分区：
文献类型：
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作者：
Yuka Suzaki;M. Ueda;M. Ikeda;K. Doi;Terauchi Shuntaro
多孔钛是一种优秀的候选生物材料，因为它能够在植入后保持适当的强度。钛及其合金的骨整合性低于生物活性陶瓷。因此，各种表面修饰技术被开发出来以改善骨整合。采用化学-水热联合处理方法在纯钛表面成功制备了二氧化钛（TiO2）和钛酸钙（CaTiO3）薄膜。特别是在CaTiO3中，由于汉克斯溶液中CaTiO3表面释放ca2 +，促进了磷灰石的形成。方解石（CaCO3）是一种可生物降解的材料，必须在模拟体液和CaTiO3中促进羟基磷灰石（HAp）的形成。本研究的目的是通过Ca(OH)2和KHCO3的化学水热处理，在纯钛和多孔钛上合成含CaCO3的生物活性膜。对改性多孔材料进行了力学性能测试。通过选择水热处理水溶液中CO3 /Ca的离子浓度比，合成了CaTiO3-CaCO3和TiO2-CaCO3薄膜。采用水热法在多孔钛上合成了CaTiO3-CaCO3薄膜。处理后多孔钛的压缩性能与处理前相似。经表面改性制备的膜与原膜的性能相比无明显变化。
Porous titanium is an excellent biomaterial candidate because of its ability to maintain appropriate strength once it is implanted. The osteointegration of titanium and its alloys is less than that of bioactive ceramics. Therefore, various surface modification techniques have been developed to improve the osteointegration. We successfully prepared titanium dioxide (TiO2) and calcium titanate (CaTiO3) films on the surfaces of pure Ti by combined chemical-hydrothermal treatment. Especially in CaTiO3, the formation of apatite was promoted due to the release of Ca 2+ from the surface of CaTiO3 in Hanks’ solution. Calcite (CaCO3) is a biodegradable material that must enhance hydroxyapatite (HAp) formation in simulated body fluid as well as in CaTiO3. The purpose of the present study was to synthesize bioactive films including CaCO3 on pure Ti substrates and porous titanium by chemical-hydrothermal treatment using Ca(OH)2 and KHCO3. The modified porous materials were tested mechanically in a compression test. CaTiO3-CaCO3 and TiO2-CaCO3 films were synthesized by choosing an ion concentration ratio of CO3 /Ca in the aqueous solution for hydrothermal treatment. CaTiO3-CaCO3 films were also synthesized on porous titanium by hydrothermal treatment. Compressive properties of porous titanium after the treatment were similar to those prior to the treatment. The films produced by the present surface modification showed no significant changes compared to the original properties.
DOI：
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发表时间：
1956
期刊：
--
影响因子：
--
作者：
窯業協会;日本セラミックス協会
通讯作者：
窯業協会;日本セラミックス協会