氨基酸衍生的阴性多烯胺,具有量身定制的疏水性-物理化学特性和细胞相互作用
Jonas De Breuck1, Michael Streiber2,3, Michael Ringleb2,3
1Macromolecular Chemistry, University of Bayreuth, Universitätsstraße 30, 95447 Bayreuth, Germany.
ACS polymers Au
|June 17, 2024
概括
氨基酸衍生的聚氨离子被合成用于生物医学用途. 更多的疏水性聚合物显示细胞协会增加,突出显示了为药物输送量身定制聚合物特性的重要性.
科学领域:
- 聚合物化学 聚合物化学
- 生物材料科学 生物材料科学
- 细胞生物学 细胞生物学
背景情况:
- 聚离子通过内细胞分裂内化进入细胞,使其成为生物医学应用的前景.
- 定制聚离子的特性,如疏水性,对于有效的细胞相互作用和药物输送至关重要.
研究的目的:
- 合成氨基酸衍生的聚离子,具有受控的疏水性和基分支.
- 为了研究这些新型聚氨酸的物理化学性质和细胞相互作用.
主要方法:
- 可逆添加-碎片化链转移 (RAFT) 聚合,然后进行后聚合修饰.
- 使用尺寸排除染色学,NMR和红外光谱学进行表征.
- 对疏水性,表面电荷,pH依赖性和细胞与L929纤维细胞的关联性进行评估.
主要成果:
- 成功合成了氨基酸衍生聚离子,具有多种基侧链.
- 尽管存在疏水性差异,但确定了与聚烯酸相似的pKa值.
- 观察到缓慢的细胞协会和膜积累,对更多的疏水性聚合物具有更高的协会.
结论:
- 电荷和疏水性的宏分子工程是聚合物-细胞膜结合和内部化的关键.
- 氨基酸衍生聚合物为先进的药物输送系统提供了多样化的特性.
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