PAMAM-芯的多臂块共聚合物的尺寸控制和生物特性
Bo Yu1, Ying Sun1, Panpan Xiao1
1Department of Polymer Science & Engineering, State Key Laboratory of Analytical Chemistry for Life Science, College of Chemistry & Chemical Engineering, Nanjing University, Nanjing 210023, P. R. China.
ACS applied bio materials
|June 1, 2023
概括
这项研究为纳米医学合成了可调整大小的多臂块共聚合物. 不同的共聚物尺寸 (15-41 nm) 影响细胞吸收,瘤透和抗瘤疗效,指导未来的纳米药物载体设计.
科学领域:
- 聚合物化学 聚合物化学
- 纳米医学是一种纳米医学.
- 材料科学 材料科学 材料科学
背景情况:
- 控制纳米材料大小对于纳米医学的有效性至关重要,但仍然具有挑战性.
- 尺寸显著影响纳米医学的生物特性,需要进一步调查.
- 开发可调整尺寸的聚合物纳米载体对于优化药物输送至关重要.
研究的目的:
- 为纳米医学应用合成和控制多臂块共聚合物的尺寸.
- 调查不同大小的共聚合物对生物特性和治疗结果的影响.
- 为设计先进的聚合物纳米药物载体建立结构-属性关系.
主要方法:
- 合成的多臂块共聚合物使用环开聚合Glu(O*t*Bu) -NCA和PCB的原子转移激素聚合.
- 通过调整聚合物臂长度来控制共聚合物尺寸 (15,24,41 nm).
- 功能化共聚合物与多克索鲁比辛通过pH敏感的基连接用于药物输送.
主要成果:
- 成功合成了具有受控尺寸 (15,24,41 nm) 的多臂块共聚合物.
- 已经证明了依赖于大小的细胞吸收,内细胞通路,生物分布和瘤透.
- 达到pH敏感的多克索鲁比辛释放,药物负载>20%,具有显著的抗瘤活性.
结论:
- 多臂块共聚合物尺寸是影响纳米医药性能的一个关键参数.
- 可调节的共聚合物大小增强了细胞吸收,瘤透和治疗疗效.
- 这些发现为设计用于癌症治疗的有效聚合物纳米药物载体提供了宝贵的见解.
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