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可光切换的罗他森对跨脂质组成的膜透效应的影响

Udyogi N K Conthagamage¹, Lilia Lopez¹, Zuliah A Abdulsalam¹

¹Department of Chemistry, Louisiana State University. Baton Rouge, LA 70803, USA.

Beilstein journal of organic chemistry

|November 19, 2025

概括

这项研究表明,带有阿佐烯光开关的轮素可以触发从脂质双层释放货物. 膜组成决定了光触发释放效率,强调了双层性质的重要性.

科学领域:

超分子化学超分子化学
材料科学材料科学材料科学
生物物理学的生物物理.

背景情况:

罗塔克桑是机械互锁的分子,在药物输送中具有潜在的应用.
亚烯光开关可以实现对光有反应的分子行为.
控制膜透性对于有针对性的货物释放至关重要.

研究的目的:

为了研究由含有亚博的轮素引起的光触发的膜透.
为了评估脂质双层组成对罗塔介导的货物释放的影响.
探索从囊泡中释放光诱导的货物的机制.

主要方法:

含有亚博的轮素的合成和表征.
制备具有不同脂质组成的大型单囊 (LUV) (例如,EYPC,DPPC,胆固醇).
监测水友性染料 (硫黄胺B) 从LUV释放在光照射 (UV/Vis) 在rotaxanes的存在下.

主要成果:

罗塔的光异构化显著增强了EYPC/胆固醇 (8:2) 囊泡 (29%至59%) 和DPPC双层 (7%至14%) 中的染料释放.
高流动性的EYPC双层显示出高基线释放,光交换时的增加最小.
刚性EYPC/胆固醇 (6:4) 双层表现出最小的释放,不受光切换的影响.
无线轴的辐射诱导了一种未知的不可逆转的光化学过程,触发了特定于含有EYPC的囊泡中的释放.

结论:

光触发式货物释放的有效性高度依赖于脂质双层的物理性质 (流动性,刚性,组成).
在罗塔克桑中进行阿佐烯光开关,为膜透提供了一个可调节的机制.
需要进一步的研究来阐明在轴辐射时观察到的不可逆的光化学过程.

关键词:

脂质膜是一种脂质膜.膜流动性膜流动性膜的透性膜的透性可光切换的罗他森

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