基于酸盐的可注射水凝,与不同化学成分的LCST侧链接接种
L Barbier1, P Pipart1, M Vahdati2
1Soft Matter Sciences and Engineering, ESPCI Paris, PSL University, Sorbonne University, CNRS, F-75005 Paris, France.
Carbohydrate polymers
|April 26, 2024
概括
这项研究通过将聚合物移植到基酸盐上来开发了可注射的热敏水凝. 这些智能水凝在体温下表现出受控的凝和药物释放,为生物医学应用提供了潜力.
科学领域:
- 聚合物科学 聚合物科学
- 材料科学 材料科学 材料科学
- 生物材料工程 生物材料工程
背景情况:
- 热敏聚合物对于开发具有可调节性质的智能水凝至关重要.
- 基于酸盐的水凝为药物输送和组织工程提供生物相容性和多功能性.
- 了解聚合物结构和水凝特性之间的关系对于优化性能至关重要.
研究的目的:
- 合成和表征基于酸盐和温度敏感聚合物的热结合性共聚合物.
- 研究这些新型水凝的sol/gel过渡和凝特性.
- 评估可注射性,胀性和分子释放性特征,用于潜在的生物医学应用.
主要方法:
- 在基酸盐上植入聚N-异烯胺,聚二乙烯甘 (甲基烯酸盐) 和聚乙烯氧化物-联合氧化物.
- 综合性表征使用风学,热量计,核磁共振 (NMR) 和小角度X射线散射 (SAXS).
- 在生理环境中评估粘性,可注射性,凝膨胀和分子释放.
主要成果:
- 建立了一系列同源的热结合性共聚合物,并进行受控的移植.
- 确定了控制sol/gel过渡的关键参数,包括宏分子纠和响应性贴纸分数.
- 证明了稳定的剪切实验预测了注射力,并且在37°C的快速凝控制了分子释放.
结论:
- 开发了基于酸盐支架的可注射热敏水凝,具有可调节的特性.
- 为设计具有可预测的凝和释放配置文件的水凝提供了定量指导方针.
- 强调了这些材料在先进的药物输送和再生医学应用中的潜力.
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