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首页> 外文期刊>Optical Materials >Influence of strontium on structure, bioactivity and corrosion behaviour of B_2O_3-SiO_2-Na_2O-CaO glasses-investigation by spectroscopic methods
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Influence of strontium on structure, bioactivity and corrosion behaviour of B_2O_3-SiO_2-Na_2O-CaO glasses-investigation by spectroscopic methods

机译：锶对B_2O_3-SiO_2-Na_2O-CaO玻璃结构，生物活性和腐蚀行为的影响-光谱法研究

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摘要

Strontium mixed borate based bioactive glasses of the composition (55-x)B2O3-5SiO(2)-20CaO-20Na(2)O: xSrO (with x = 2,4,6,8 and 10 mol%) were synthesized using conventional melt quenching technique. Structural variations in the glasses due to addition of SrO were assessed from FTIR and optical absorption spectroscopy methods. Degradation and bioactivity studies of the glasses were performed by immersing the glasses in simulated body fluid (SBF). Degradation studies of these glasses measured as function of immersion time were analyzed in terms of structural modifications taken place due to strontium mixing. The formation of hydroxy apatite (HA) layer on the surface of glasses, treated in SBF solution was examined by XRD, FTIR, optical absorption and scanning electron microscopy studies. The observed bone like apatite formation on glass surface demonstrated the potentiality of the chosen glass for integration with bone. Quantitative analysis of results of the studies on the bioactive behavior of the titled glass indicated that the mixing of SrO to the optimum levels improved its bioactivity.
机译：使用常规方法合成了组成为（55-x）B2O3-5SiO（2）-20CaO-20Na（2）O：xSrO（x = 2,4,6,8和10 mol％）的混合锶硼酸盐的生物活性玻璃熔体淬火技术。通过FTIR和光吸收光谱法评估了由于添加了SrO而导致的玻璃结构变化。通过将眼镜浸入模拟体液（SBF）中进行眼镜的降解和生物活性研究。根据由于锶混合而发生的结构改变，分析了这些玻璃随浸入时间而变质的研究。通过XRD，FTIR，光吸收和扫描电子显微镜研究检查了在SBF溶液中处理的玻璃表面羟基磷灰石（HA）层的形成。在玻璃表面观察到的类似骨的磷灰石形成表明了所选玻璃与骨整合的潜力。对标题玻璃的生物活性行为的研究结果的定量分析表明，将SrO混合至最佳水平可提高其生物活性。

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