Cation-selective color sensors composed of ionophore-phospholipid-polydiacetylene mixed vesicles

被引：210

作者：

Kolusheva, S ^{[1
]}

Shahal, T ^{[1
]}

Jelinek, R ^{[1
]}

机构：

[1] Ben Gurion Univ Negev, Dept Chem, IL-84105 Beer Sheva, Israel

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2000年 / 122卷 / 05期

关键词：

D O I：

10.1021/ja9924288

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Supramolecular assemblies of vesicles composed of ionophores and phospholipids embedded in a matrix of polymerized diacetylene [PDA] lipids are shown to undergo visible color changes in the presence of ions in solution. The blue-to-red color transitions of the vesicles are directly related to binding of the cations to the ionophores, and their association with the lipids. The system detects cations in submillimolar concentrations and demonstrates a significant ionic selectivity, in particular between the physiologically important ions Na+ and K+.

引用

页码：776 / 780

页数：5

共 31 条

[1] Purinergically induced membrane fluidization in ciliary cells: Characterization and control by calcium and membrane potential [J].