Hsu Pei-Yi, Kuo Hsiao-Chun, Tuan Wei-Hsing, Shih Shao-Ju, Naito Makio, Lai Po-Liang
Department of Materials Science and Engineering, National Taiwan University, Taipei, 107, Taiwan.
Department of Materials Science and Engineering, National Taiwan University of Science and Technology, Taipei, 107, Taiwan.
Prog Biomater. 2019 Jun;8(2):115-125. doi: 10.1007/s40204-019-0116-7. Epub 2019 May 24.
A bioactive calcium sulfate/glass composite was prepared using a sintering technique, and Ca-P-Si glass particles were prepared by spray pyrolysis. The glass exhibited bioactivity in terms of its ability to form apatite in a simulated body fluid. The glass was transformed into two crystallized phases, i.e., calcium phosphate and calcium silicate, respectively, during the heating stage. The presence of the crystallized phases retarded the densification of calcium sulfate. A high sintering temperature of 1200 °C was needed to prepare the composite. The increased addition of glass enhanced the strength and decreases the degradation rate of calcium sulfate. The new composite is not only degradable but also bioactive.
采用烧结技术制备了一种生物活性硫酸钙/玻璃复合材料，通过喷雾热解制备了Ca-P-Si玻璃颗粒。该玻璃在模拟体液中形成磷灰石的能力方面表现出生物活性。在加热阶段，玻璃分别转变为两种结晶相，即磷酸钙和硅酸钙。结晶相的存在阻碍了硫酸钙的致密化。制备该复合材料需要1200℃的高烧结温度。玻璃添加量的增加提高了强度并降低了硫酸钙的降解速率。这种新型复合材料不仅可降解而且具有生物活性。
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