设计用于体药物输送的生物启发的体三区合聚物: 1 - 合成和表征
1Department of Pharmaceutics and Biopharmacy, Philipps-Universität, Marburg, Germany; Medical Clinic II, Department of Internal Medicine, Justus-Liebig-Universität, Giessen, Germany.
新的poly[2-(methacryloyloxy) ethyl phosphorylcholine]-block-poly(propylene glycol) -block-poly[2-(methacryloyloxy) ethyl phosphorylcholine] (PMPC-b-PPG-b-PMPC) 三环共聚合物显示出药物输送的前景. 这些生物相容的聚合物增强了纳米粒子的稳定性,并减少了蛋白质吸附.
科学领域:
- 聚合物化学 聚合物化学
- 材料科学 材料科学 材料科学
- 生物技术是生物技术.
背景情况:
- 特里布洛克共聚合物对于先进的材料应用至关重要.
- 聚二甲基氧乙烯酸) - - 聚二甲基醇) - - 聚二甲基氧乙烯酸] (PMPC-b-PPG-b-PMPC) 具有独特的两性特性.
- 优化共聚物结构是有效的体药物递送系统的关键.
研究的目的:
- 为了合成和表征PMPC-b-PPG-b-PMPC三块式共聚合物.
- 研究这些共聚合物的结构-性质关系,用于体应用.
- 评估它们在增强药物输送工具方面的潜力.
主要方法:
- 通过原子转移激素聚合的合成.
- 分子重量和组成的表征.
- 在体外评估水溶性,表面活性和生物相容性.
- 对聚合物纳米颗粒的吸附和蛋白质耗尽的评估.
主要成果:
- 一个PMPC-b-PPG-b-PMPC共聚合物的库 (525 kDa) 与不同的PPG含量 (1050重%) 已成功合成.
- 水友性共聚合物表现出良好的溶解性,表面活性和生物相容性.
- 对纳米颗粒的有效吸附提高了体稳定性,减少了蛋白质污染.
- 具有特定 PMPC 和 PPG 块长度 (2-4 kDa PPG,每个为 5-10 kDa PMPC) 的共聚物显示出显著的前景.
结论:
- PMPC-b-PPG-b-PMPC三块式共聚合物具有可调节的性能,可用于先进的应用.
- 这些共聚物增强了用于药物输送的聚合物纳米颗粒的性能.
- 优化的PMPC-b-PPG-b-PMPC结构为纳米粒子提供了有效的保护.
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