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经过UV处理的生物基烯酸大豆油支架,用生物活性玻璃增强
Matteo Bergoglio1, Ziba Najmi2, Andrea Cochis2
1Dipartimento di Scienza Applicata e Tecnologia, Politecnico di Torino, C.so Duca degli Abruzzi 24, 10129 Torino, Italy.
Polymers
|October 28, 2023
概括
这项研究使用基于大豆油的树脂和生物活性玻璃开发了新的3D打印支架. 由此产生的复合材料支架表现出增强的机械性能和优良的细胞兼容性,用于组织工程应用.
科学领域:
- 生物材料科学 生物材料科学
- 组织工程是组织工程.
- 聚合物化学 聚合物化学
背景情况:
- 开发先进的支架对于组织工程至关重要.
- 生物基树脂为生物材料制造提供了可持续的替代品.
- 生物活性眼镜增强了脚手架与骨组织的整合.
研究的目的:
- 通过使用烯酸环氧化大豆油 (AESO) 和生物活性玻璃,合成和特征化3D打印的复合性支架.
- 评估这些新型支架的机械性能,细胞相容性和生物相容性.
- 研究生物活性玻璃含量对脚手架性能的影响.
主要方法:
- 用AESO,同烯酸 (IBOA) 和光启动器制备一个树脂系统.
- 将生物活性玻璃颗粒纳入树脂配方.
- 使用3D打印和传统成型技术制造脚手架.
- 使用差分扫描热量计 (DSC),扫描电子显微镜 (SEM) 和压缩测试等技术进行表征.
- 使用人类骨髓介质干细胞 (bMSCs) 评估细胞行为,包括代谢活动,附着和活力测试.
主要成果:
- 树脂在激进光聚合过程中表现出高反应性,生物活性玻璃的影响最小.
- 与成型样品相比,3D打印的脚手架显示了玻璃过渡温度 (Tg) 的增加和更高的模量.
- 在聚合物矩阵内观察到生物活性玻璃的最佳分布.
- 生物活性玻璃含量较高的支架表明细胞代谢活性和附着性增强,以及良好的细胞活力.
结论:
- 用生物活性玻璃增强的基于AESO的复合材料支架的3D打印是一种可行的方法.
- 制造的脚手架具有改进的机械性能和出色的生物相容性.
- 这些新型的支架具有在骨组织工程中的应用的巨大潜力.
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