Calcium phosphate cement with silicate ion releasing ability by incorporating calcium silicate hydrate
Calcium phosphate cement with silicate ion releasing ability by incorporating calcium silicate hydrate
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DOI：
10.2109/jcersj2.122.591
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发表时间：
2014-08
影响因子：
1.1
通讯作者：
H. Maeda;T. Kasuga
中科院分区：
文献类型：
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作者：
H. Maeda;T. Kasuga
以磷酸三钙和少量水化硅酸钙凝胶为原料，以蒸馏水为液相，制备了具有硅酸离子释放能力的磷酸钙骨水泥。羟基磷灰石是通过无定形磷酸钙加入水化硅酸钙形成的凝胶。水化硅酸钙凝胶的存在影响了羟基磷灰石的生成量、晶粒大小和化学组成。羟基磷灰石和无定形磷酸钙的形成导致了固化后骨水泥抗压强度的提高。在磷酸三钙糊剂中加入质量分数小于0.5%的水化硅酸钙凝胶，在Tris缓冲溶液中可诱导水泥中硅酸根离子的释放。
Calcium phosphate cement with a silicate ion releasing ability was prepared using a paste of ¡-tricalcium phosphate and a trace amount of calcium silicate hydrate gel with distilled water as a liquid phase. Hydroxyapatite formed via an amorphous calcium phosphate by adding calcium silicate hydrate gel. The existence of calcium silicate hydrate gels influenced on the amount, crystalline size and chemical composition of the formed hydroxyapatite. The Formation of hydroxyapatite and amorphous calcium phosphate led to developing the compressive strength of the cement after the solidification. The incorporation of less than 0.5mass% calcium silicate hydrate gel into the ¡-tricalcium phosphate paste induced silicate ion release in the cement in Trisbuffer solution.