从溶液中沉积到新基质上的Hydroxyapatite的特征:生长机制和物理特性
Bríd Murphy1,2, Jhonattan Baez1,2, Mick A Morris1,2
1Advanced Materials & Bioengineering Research Centre (AMBER), Trinity College Dublin, Dublin 2, D02 CP49 Dublin, Ireland.
Nanomaterials (Basel, Switzerland)
|September 9, 2023
概括
研究人员开发了一种湿化学方法,在非金属基板上生长酸涂层,这对于增强骨科植入物集成至关重要. 这种技术使得酸在各种表面上均结晶,扩大了植入物材料的选择.
科学领域:
- 生物材料科学 生物材料科学
- 材料化学 材料化学
- 整形外科工程 整形外科工程
背景情况:
- 传统的骨科植入物使用金属合金,如,不钢和-.
- 非金属基板在植入物机械和生物特性方面提供了潜在的优势.
- 一个挑战是在非金属上创建粘合良好的酸 (HA) 薄膜,以促进骨质整合.
研究的目的:
- 开发一种湿化学涂层工艺,用于在各种基板上种植酸膜.
- 为了描述在薄薄膜和基板上形成的酸涂层.
- 为了将涂层结果与合金基板的涂层结果进行比较.
主要方法:
- 通过从和溶液中的湿化学涂层来生长氧酸盐.
- 基质的表征包括粗性,水友性和激活性.
- 使用扫描电子显微镜 (SEM),X射线光电子光谱 (XPS),X射线衍射 (XRD),传输电子显微镜 (TEM),能量散射X射线光谱 (EDX) 和富里埃转换红外光谱 (FTIR) 的涂层分析.
主要成果:
- 涂层的有效性取决于基质的特性,如粗性和水友性.
- XPS证实了酸中Ca,P和O的化学状态.
- XRD揭示了具有优先[002]晶体生长的无形相,而TEM显示了无形矩阵内的多晶口袋.
- SEM-EDX和FTIR证实了酸的存在和组成.
- 一旦启动,酸结晶在和基板上遵循类似的模式.
结论:
- 一种简单的湿化学方法使得酸在一系列非金属基质上沉积.
- 该技术促进了酸的均结晶,类似于散装的结晶.
- 这扩大了骨科植入物的基板选择,可能改善功能和集成.
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