超分子德克斯/聚胺酸纳米囊具有智能响应性,用于治疗药物的封装
Aharon Steffè1, Francesca Milano1, Santiago Giménez Reyes2
1Department of Chemistry 'Ugo Schiff', University of Florence, via della Lastruccia 3-13, 50019 Sesto Fiorentino (FI), Italy.
Journal of colloid and interface science
|December 20, 2024
概括
研究人员开发了新的德克斯功能化聚亚胺化物 (PAH:DEX) 纳米囊. 这些pH响应组件可以封装和释放蛋白质,显示有针对性的药物输送应用的潜力.
科学领域:
- 材料科学 材料科学 材料科学
- 聚合物化学 聚合物化学
- 纳米技术纳米技术
背景情况:
- 聚氨酸化物 (PAH) 是一种合成聚合物,在药物输送中具有潜在的应用.
- 德克斯 (DEX) 是一种生物相容的多糖,可以增强聚合物特性.
- 使用DEX功能化PAH可以创建具有改进特性的新型纳米载体.
研究的目的:
- 为了合成和表征PAH:DEX聚合物具有不同的德克斯结合.
- 研究超分子组件的形成和特性,特别是纳米囊 (NCs).
- 评估这些新型NC的pH响应和蛋白质传递能力.
主要方法:
- 对于PAH-DEX结合的还原性氨化.
- 动态光散射 (DLS),z电位,冷电子显微镜和小角度X射线散射 (SAXS) 用于表征.
- 光相关谱学 (FCS) 和循环二极化 (CD) 用于蛋白质释放和形状研究.
主要成果:
- PAH:DEX聚合物形成了pH响应的超分子组件,包括1:1比例的纳米囊.
- 在pH<6下拆解并在pH6-9重新组装的NCs,证明了pH的灵敏度.
- 牛血清白蛋白 (BSA) 的成功封装和pH触发释放得到实现.
结论:
- 新型PAH:DEX纳米囊成功合成和表征.
- 这些纳米囊表现出适合控制释放应用的pH响应性行为.
- 这些发现表明,在治疗性蛋白质和酶的内体体传递中,有潜在的应用.
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