在添加了B2O3、Na2O、CaF2和P2O5的CaO-MgO-SiO2系统玻璃上形成羟基磷灰石。
Formation of hydroxyapatite onto glasses of the CaO-MgO-SiO2 system with B2O3, Na2O, CaF2 and P2O5 additives.
作者信息
Agathopoulos S, Tulyaganov D U, Ventura J M G, Kannan S, Karakassides M A, Ferreira J M F
机构信息
Department of Ceramics and Glass Engineering, University of Aveiro, CICECO, 3810-193 Aveiro, Portugal.
出版信息
Biomaterials. 2006 Mar;27(9):1832-40. doi: 10.1016/j.biomaterials.2005.10.033. Epub 2005 Nov 23.
New bioactive glasses with compositions based on the CaO-MgO-SiO(2) system and additives of B(2)O(3), P(2)O(5), Na(2)O, and CaF(2) were prepared. The in vitro mineralization behaviour was tested by immersion of powders or bulk glasses in simulated body fluid (SBF). Monitoring of ionic concentrations in SBF and scanning electron microscopy (SEM) observations at the surface of the glasses were conducted over immersion time. Raman and infrared (IR) spectroscopy shed light on the structural evolution occurring at the surface of the glasses that leads to formation of hydroxyapatite.
制备了基于CaO-MgO-SiO₂体系并添加了B₂O₃、P₂O₅、Na₂O和CaF₂的新型生物活性玻璃。通过将粉末或块状玻璃浸入模拟体液（SBF）中来测试其体外矿化行为。在浸泡过程中监测SBF中的离子浓度，并对玻璃表面进行扫描电子显微镜（SEM）观察。拉曼光谱和红外（IR）光谱揭示了玻璃表面发生的导致羟基磷灰石形成的结构演变。
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