用于骨科植入物的二氧化基微弧涂层的功能化:TiO的影响2 补充
Alexander D Kashin1, Mariya B Sedelnikova1, Pavel V Uvarkin1
1Laboratory of Physics of Nanostructured Biocomposites, Institute of Strength Physics and Materials Science of SB RAS, Tomsk 634055, Russia.
Biomimetics (Basel, Switzerland)
|July 28, 2023
概括
微弧氧化通过使用二氧化和 (TiO2) 颗粒,为骨科植入物制造了保护性涂层. 这些功能化涂层增强了植入物的生物相容性和耐腐蚀性,降低了细胞毒性.
科学领域:
- 生物材料科学 生物材料科学
- 材料工程 材料工程 材料工程
- 表面化学 表面化学
背景情况:
- 生物可吸收 (Mg) 植入物具有优势,但需要保护性涂层来控制腐蚀并提高生物相容性.
- 微弧氧化是一种有前途的技术,用于开发金属植入物上的功能性涂层.
研究的目的:
- 合成和表征基于二氧化和 (TiO2) 的新型微弧氧化涂层,用于可生物吸收的Mg整形植入物.
- 评估TiO2加入对涂层性能的影响,包括耐腐蚀性,粘附性和体外生物相容性.
主要方法:
- 使用二氧化的涂料的微弧氧化合成.
- 通过加入 (TiO2) 颗粒来使涂料具有功能.
- 使用X射线衍射 (XRD),腐蚀测试 (电化学方法),粘附测试,溶解研究和体外细胞活力测试进行表征.
主要成果:
- 通过XRD证实了新的正酸盐相,石 (Mg2SiO4) 的形成.
- 包括TiO2颗粒显著降低了腐蚀电流密度 (1-2 个数量级),并增强了涂层粘附性.
- 与未涂层的样本相比,涂层的Mg样本表现出较低的溶解速率和显著改善的体外细胞活力.
结论:
- 用TiO2颗粒功能化的二氧化基微弧氧化涂层为可生物吸收的Mg整形植入物提供了增强的腐蚀保护和附着性.
- 这些涂层有效地减轻了Mg的细胞毒性,证明了骨科应用的巨大潜力.
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