用于生物医学应用的生物稳定细分聚氨形状记忆聚合物的无溶剂合成
Maryam Ramezani1, Dariya Getya2,3, Ivan Gitsov1,2,3
1Department of Biomedical and Chemical Engineering, BioInspired Syracuse, Syracuse University, Syracuse, NY, USA. mbmonroe@syr.edu.
Journal of materials chemistry. B
|January 3, 2024
概括
使用无溶剂方法合成了生物稳定的形状记忆聚合物,为生物医学应用提供可调节性质和出色的形状恢复. 这些材料表现出高性能和生物稳定性,适用于先进的脚手架.
科学领域:
- 生物材料科学 生物材料科学
- 聚合物化学 聚合物化学
- 材料工程 材料工程 材料工程
背景情况:
- 生物稳定的形状记忆聚合物对于在生理条件下控制形状恢复至关重要.
- 简单,可扩展和生物相容的合成方法对于商业化至关重要.
研究的目的:
- 通过无溶剂方法合成生物稳定,细胞相容的形状记忆聚合物,具有可调节的特性.
- 评估硬片段含量和加工对聚合物特性的影响.
- 评估为生物医学应用创造纤维支架的潜力.
主要方法:
- 形状记忆聚合物的无溶剂合成,具有不同的硬片段含量.
- 描述表面化学,热力学特性,形状记忆行为和生物稳定性.
- 探究回火和溶剂造效应的研究.
- 纤维形成与基于溶剂的方法的比较.
主要成果:
- 聚合物表现出高的玻璃过渡温度 (>50°C),高的形状固定性 (73-80%),和形状回收 (93-95%).
- 在氧化和水溶媒介中观察到最小的降解 (<5%的质量损失),40天后形状恢复稳定.
- 无溶剂合成产生了具有较高分子量和结晶性的聚合物,使得具有增强的机械和形状记忆性质的优质纤维支架成为可能.
结论:
- 一种无溶剂的方法成功地产生了生物稳定的,细胞相容的形状记忆聚氨,具有可调节的特性.
- 这些聚合物表现出极好的稳定性和形状记忆性能,适合植入和脚手架制造.
- 开发的材料为先进的生物医学设备和药物输送系统提供了潜力.
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