智能超分子核心外聚合物与真触发的表面开关,有效地克服矛盾的粘液和上皮壁垒
Xue Xu1, Rui Zhang1, Yangjia Liu1
1College of Pharmacy, Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenhe, Shenyang, Liaoning, 110000, China.
Small (Weinheim an der Bergstrasse, Germany)
|November 22, 2025
概括
研究人员开发了新的基甲基纤维素 (HPMC) 和大豆 lecithin (PC) 纳米颗粒,这些纳米颗粒从爱水转变为厌水. 这允许有效的口服药物递送,首先通过透粘液,然后进入上皮细胞.
科学领域:
- 材料科学 材料科学 材料科学
- 纳米技术 纳米技术
- 生物医学工程 生物医学工程
背景情况:
- 口腔纳米载体面临着一个挑战:快速的粘液透需要水友表面,而快速的上皮质吸收需要疏水表面.
- 现有的制造粘膜惰性但细胞相亲的纳米载体的方法通常是复杂的,涉及合成修改.
研究的目的:
- 设计一种简单的非共价方法,以创建具有可调节的,由粘素触发的表面过渡的核心外超分子聚合物 (HPMC@PC).
- 为了克服有效的口服纳米载体输送的矛盾要求.
主要方法:
- 使用基结合驱动的基甲基纤维素 (HPMC) 和大豆莱西丁 (PC) 的自组装.
- 研究了HPMC/PC摩尔比对水友性外厚度和表面特性的影响.
- 在被粘液覆盖的Caco-2细胞单层和口服的老鼠中评估了纳米载体的性能.
主要成果:
- 工程HPMC@PC纳米颗粒表现出由粘真菌触发的水友性到疏水性表面过渡.
- 证明中等的外厚度促进了粘膜透,而过渡促进了上皮内部化.
- 与赤裸的纳米粒子 (纳米-PC) 和联修饰的纳米粒子 (HPMC-PC) 相比,HPMC@PC显示出更高的传递能力.
结论:
- 展示了工程刺激响应超分子聚合物的范式.
- 开发的HPMC@PC纳米载体有效地克服了口服药物输送中的级联障碍.
- 这种方法为肠道中向药物释放提供了一个有希望的策略.
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