表面化学驱动的纳米颗粒的透,通过粘液屏障通过闪光纳米沉产生
Karla E Cureño Hernandez1, Jeonghun Lee1,2, Zachary Cartwright3
1School of Materials Science and Engineering, Colorado State University, Fort Collins, Colorado 80523, United States.
ACS applied bio materials
|November 13, 2025
概括
研究人员设计了具有可调节粘液相互作用的纳米粒子,以改善药物输送. 结合zwitterionic和酸组,可以控制纳米颗粒通过粘膜壁垒透.
科学领域:
- 生物材料科学 生物材料科学
- 纳米技术纳米技术
- 药物运输 药物运输 药物运输
背景情况:
- 粘膜壁垒对治疗纳米粒子扩散构成重大挑战,阻碍了跨粘膜药物输送.
- 表面化学对于克服这些障碍至关重要,粘膜粘合和粘膜透策略提供了潜在的解决方案.
研究的目的:
- 通过结合zwitterionic和酸的功能来设计具有可调节相互作用的纳米粒子以透粘液.
- 研究表面化学对穿越粘膜屏障的纳米粒子运输的影响.
主要方法:
- 作为纳米粒子稳定剂的含有或不含有氨基酸 (APBA) 的区块共聚物 (PMPC,PMCB) 的合成.
- 纳米颗粒的表征和通过纯化的绵羊小肠粘液透的评估.
- 泽塔潜力分析用于评估粘液暴露后的表面完整性.
主要成果:
- 与PMCB和PEG类似物相比,基于PMPC的纳米粒子通过粘液表现出优异的运输能力.
- 增加的APBA密度减少了纳米粒子透,这是由于与酸的特定相互作用造成的,这种效应在自由酸中是可逆的.
- 纳米颗粒的表面完整性在粘液暴露后保持不论APBA密度.
结论:
- 结合zwitterionic和酸的功能,可以合理设计具有受控粘膜和粘膜透性质的纳米粒子.
- 这种方法提供了一个灵活的平台,用于优化纳米粒子,以便在跨粘膜药物递送中有效地穿越粘液屏障.
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