酸介导的素/表面相互作用的zwitterionic聚合物刷子
Karla E Cureno Hernandez1, Jeonghun Lee1, Sunghoon Kim1
1School of Materials Science and Engineering, Colorado State University, Fort Collins, Colorado, 80523, USA. m.herrera-alonso@colostate.edu.
Soft matter
|April 2, 2025
概括
研究人员探索了颗粒表面如何与粘液相互作用,以改善跨粘膜药物输送. 用聚二甲基酸和酸修饰表面显示了依赖pH的粘素相互作用,有助于粘液透策略.
科学领域:
- 生物材料科学 生物材料科学
- 表面化学 表面化学
- 药物运输 药物运输 药物运输
背景情况:
- 粘液屏障通过捕获外部颗粒来阻碍粘液间的药物输送.
- 了解表面粘液相互作用对于增强粒子运输至关重要.
- 基聚合物和酸具有调节粘液相互作用的潜力.
研究的目的:
- 为了研究改性表面与粘素的相互作用.
- 为了评估zwitterionic聚合物和酸在粘液中移植的表面的pH依赖性行为.
- 为设计有效的粘液透颗粒提供见解.
主要方法:
- 在使用表面启动的SI-ARGET ATRP,将聚二甲基烯酸烯酸 (PMPC) 刷子移植到表面.
- 将3-基酸 (APBA) 结合到PMPC植入的表面上.
- 在不同的pH值下分析粘素吸附和表面特性.
主要成果:
- 在所有测试的pH值中,PMPC植入的表面没有表现出粘素吸附.
- 用APBA功能化的表面与粘膜上的酸残留物产生了特定的相互作用,特别是在较低的pH值下.
- 这些相互作用表明一个pH触发的机制来控制颗粒粘液粘附.
结论:
- 兹威特的PMPC涂层防止非特异性粘附,而APBA则提供pH响应的结合.
- 在颗粒表面上的PMPC和APBA的组合可以被设计成调节粘液运输.
- 这项研究为开发针对性跨粘膜药物递送的先进材料提供了基础.
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