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用La和Y离子修改的60S生物活性玻璃的光谱研究

V Karbivskyy¹, N Kurgan¹, V Kasyianenko²

¹G. V. Kurdyumov Institute for Metal Physics of the National Academy of Sciences of Ukraine, Kyiv 03142, Ukraine.

The journal of physical chemistry. B

|June 10, 2024

概括

60S生物活性玻璃的和改造产生纳米粒子. 这种结构变化加速了细胞外基质中的离子交换,增强了生物活性过程.

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
纳米技术纳米技术

背景情况:

生物活性眼镜对于骨再生至关重要.
了解结构修改是优化生物材料性能的关键.
60S生物活性玻璃成分是增强治疗应用的重点.

研究的目的:

研究用 (Y) 和 (La) 修改的60S生物活性玻璃的结构和粘合变化.
阐明纳米结构形成的机制及其对生物活性的影响.
评估Y和La修饰的潜力,以加速生物环境中的离子交换.

主要方法:

射线光电子光谱 (XPS) 用于表面元素分析.
福里埃转换红外光谱 (FTIR) 用于债券结构分析.
核磁共振 (NMR) 光谱学用于原子级结构洞察力.

主要成果:

在Y-和La-修改的60S生物活性玻璃中证明了纳米结构的存在.
观察到电子密度的重新分配,氧桥键的断裂和PO4和SiO4四面体的碎片化.
确定了孤立纳米集群的形成和具有生物相容层的生物惰性核心.

结论:

与Y和La的修改促进了60S生物活性玻璃中纳米粒子的形成.
观察到的结构变化促进了与细胞外基质的加速离子交换.
和的修饰可以增强生物活性的离子过程,这对于组织再生至关重要.

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