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基于Ca和Mg修饰的氧化碳化无形陶的微观结构和生物活性

Qidong Liu¹, Hongmei Chen², Xiumei Wu¹

¹National Key Laboratory of Science and Technology on High-Strength Structural Materials, Central South University, Changsha 410083, China.

Materials (Basel, Switzerland)

|January 8, 2025

概括

和改性氧化碳 (SiOC) 材料显示了增强的生物活性. 这些改性SiOC陶显示出碳酸酸酸盐的形成,这表明生物医学应用的潜力.

科学领域:

材料科学材料科学材料科学
生物材料工程生物材料工程
陶科学陶科学

背景情况:

氧化碳 (SiOC) 是一个有前途的陶材料.
用 (Ca) 和 (Mg) 等元素修改SiOC可以改变其性能.
了解结构-性质-生物活性关系对于开发先进生物材料至关重要.

研究的目的:

为了合成Ca-和Mg-修饰的SiOC (SiCaOC,SiMgOC) 材料.
为了研究这些改性SiOC陶的物理化学结构和体外生物活性.
探索网络连接和生物活动之间的关系.

主要方法:

索尔凝加工,然后进行热解以进行材料合成.
使用XRD,SEM,FTIR和29Si MAS NMR进行表征.
通过MTT测定,细胞粘附和模拟体液 (SBF) 浸泡试验来评估生物相容性和生物活性.

主要成果:

在SiOC网络中成功化Mg和Ca,形成非桥接氧基 (NBO).
在SBF浸泡后,在SiCaOC和SiMgOC表面上形成碳酸酸酸盐 (HCA).
SiCaOC的HCA生成率高于SiMgOC. SiCaOC的HCA生成率比SiMgOC更高.
减少网络连接 (NC) 与改性SiOC.中增加的生物活性.

结论:

Ca和Mg的修改增强了SiOC陶的体外生物活性.
形成HCA表明潜在的骨质导电性质.
网络连接和改性SiOC材料的生物活性之间存在非线性关系.

关键词:

氧化 (SiOC) 是一种氧化物.亚酸盐形成的能力.细胞毒性细胞毒性网络连接性网络连接性 sol

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