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首页> 外文期刊>Journal of Non-Crystalline Solids: A Journal Devoted to Oxide, Halide, Chalcogenide and Metallic Glasses, Amorphous Semiconductors, Non-Crystalline Films, Glass-Ceramics and Glassy Composites >Morphological control and in vitro bioactivity of nanoscale bioactive glasses
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Morphological control and in vitro bioactivity of nanoscale bioactive glasses

机译：纳米生物活性玻璃的形态控制和体外生物活性

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摘要

In this study, nanoscale bioactive glasses with different morphologies were prepared through sol-gel process using lactic acid as hydrolysis promoter. The effect of lactic acid concentration on the morphology of bioactive glass was characterized. The influence of the morphology on the in vitro bioactivity of samples was investigated in simulated body fluid and examined by various methods. The results showed that nanoscale surface morphologies with high roughness, created by addition of lactic acid, greatly enhanced the in vitro bioactivity of as-prepared samples. It was found that the morphology with nanoscale Surface feature and pore size distribution, in addition to specific surface area and pore volume, plays an important role in accelerating the formation of carbonated hydroxyapatite. According to our results, bioactive glasses possessing surface morphology with significant numbers of nanoscale bioactive glass particles and a narrow unimodal or bimodal mesopore structure, exhibit the best in vitro bioactivity.
机译：在这项研究中，使用乳酸作为水解促进剂，通过溶胶-凝胶法制备了具有不同形态的纳米级生物活性玻璃。表征了乳酸浓度对生物活性玻璃形态的影响。在模拟体液中研究了形态对样品体外生物活性的影响，并通过各种方法进行了研究。结果表明，通过添加乳酸产生的具有高粗糙度的纳米级表面形貌极大地增强了所制备样品的体外生物活性。发现具有纳米级表面特征和孔径分布的形态，除了比表面积和孔体积外，在促进碳酸羟基磷灰石的形成中也起重要作用。根据我们的结果，具有表面形态的生物活性玻璃具有大量的纳米级生物活性玻璃颗粒和狭窄的单峰或双峰介孔结构，表现出最佳的体外生物活性。

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