在玻璃中评估孔径大小分级的骨架,具有不同的材料组成
Evangelos Daskalakis1, Boyang Huang2, Mohamed H Hassan1
1Department of Mechanical, Aerospace and Civil Engineering, The University of Manchester, Manchester, United Kingdom.
3D printing and additive manufacturing
|May 1, 2024
概括
这项研究开发了新型的3D打印骨,使用聚烯酸 (PCL) 和各种陶. PCL/生物玻璃45S5支架显示出优异的细胞分化,用于骨组织再生.
科学领域:
- 生物材料工程 生物材料工程
- 组织工程是组织工程.
- 添加剂制造 添加剂制造 添加剂制造
背景情况:
- 对于用于骨组织再生的仿生和生物相容性支架的高需求.
- 目前复制本地骨复杂结构和组成的局限性.
- 需要先进的材料和制造技术.
研究的目的:
- 研究新型三维 (3D) 打印的多孔结构,称为"骨",具有渐变孔径.
- 模仿自然骨组织的复杂结构,增强再生潜力.
- 评估聚-ɛ-caprolactone (PCL) 复合材料支架的生物性能.
主要方法:
- 使用基于螺丝辅助挤压的增材制造系统制造骨.
- 化PCL与酸 (HA),β-三酸 (TCP) 和生物玻璃45S5.5混合.
- 生物特征,包括细胞增殖和分化试验.
- 使用扫描电子显微镜 (SEM) 的形态分析和使用能量分散X射线 (EDX) 谱学的元素分析.
- 通过对焦成像对分化的细胞进行量化.
主要成果:
- 含有PCL/HA的骨显示了细胞增殖的增强.
- 结合PCL/生物玻璃45S5的支架表现出优异的细胞分化.
- 与其他组合相比,对焦成像证实PCL/Bioglass 45S5表面的分化细胞数量较多.
- SEM和EDX分析提供了对脚手架形态和元素组成的见解.
结论:
- 具有渐变孔径的大小的3D打印骨显示了骨组织工程的前景.
- PCL/HA复合材料支持细胞增殖,而PCL/Bioglass 45S5复合材料增强细胞分化.
- 生物玻璃45S5的结合特别有效地促进了这些支架的骨质分化.
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