制造的氧酸 - 泰坦尼亚复合物用于骨替代品
Tony J Yin1, Samantha K Steyl2,3, Jerry Howard4
1Department of Mechanical Engineering, University of Utah, Salt Lake City, Utah, USA.
Journal of biomedical materials research. Part A
|November 14, 2023
概括
通过结造制造的酸-泰坦尼亚复合脚手架显示出与纯酸相比,增强了机械强度和改善了人类骨质细胞的增殖. 这些材料有望成为先进的骨替代品.
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
- 组织工程是组织工程.
背景情况:
- 酸 (HA) 是一种常见的骨替代品,但机械强度不足.
- 改善机械性能和细胞融合对于有效的骨再生至关重要.
研究的目的:
- 为了增强酸 (HA) 骨替代物的机械强度和细胞生长.
- 使用冷造制造和表征HA和 (HA-TiO2) 的多孔复合材料支架.
主要方法:
- 制造HA-TiO2复合材料支架的不同组成 (25-75,50-50,75-25重量%) 通过冷造.
- 在1250°C的温度下烧结脚手架.
- 机械性能 (压力强度,弹性模量) 和人类骨质母细胞细胞增殖的评估.
主要成果:
- 复合材料支架在烧结后表现出优越的机械性能,与纯 HA 支架相比.
- 50-50 HA-TiO2 组合显示出最高的最终压力强度 (3.12 ± 0.36 MPa) 和弹性模量 (63.29 ± 28.75 MPa).
- 在所有HA-TiO2复合物中,与14天后的HA相比,观察到人类骨质细胞增殖的增加.
结论:
- 冷造是一种生产HA-TiO2复合骨替代品的可行方法.
- 这些复合材料为骨再生应用提供了更好的机械强度,生物相容性和多孔性.
- 添加泰坦酸盐显著提高了酸作为骨替代材料的性能.
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