通过脂质膜中羧酸二聚化来调节寡胆酸盐大环的纳米孔形成。

Tuning nanopore formation of oligocholate macrocycles by carboxylic acid dimerization in lipid membranes.

机构信息

Department of Chemistry, Iowa State University, Ames, Iowa 50011-3111, United States.

出版信息

J Org Chem. 2013 May 3;78(9):4610-4. doi: 10.1021/jo400455x. Epub 2013 Apr 11.

Abstract

Oligocholate macrocycles self-assemble into transmembrane nanopores by the associative interactions of water molecules inside the amphiphilic macrocycles. Macrocycles functionalized with a terephthalic acid "side chain" displayed significantly higher transport activity for glucose across lipid bilayers than the corresponding methyl ester derivative. Changing the 1,4-substitution of the dicarboxylic acid to 1,3-substitution lowered the activity. Combining the hydrophobic interactions and the hydrogen-bond-based carboxylic acid dimerization was an effective strategy to tune the structure and activity of self-assembled nanopores in lipid membranes.

摘要

低聚糖大环通过亲水分子内水分子的缔合相互作用自组装成跨膜纳米孔。用对苯二甲酸“侧链”功能化的大环在穿过脂质双层时对葡萄糖的传输活性明显高于相应的甲酯衍生物。将二羧酸的 1,4-取代改为 1,3-取代会降低活性。结合疏水相互作用和基于氢键的羧酸二聚化是调节脂质膜中自组装纳米孔结构和活性的有效策略。

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