Is seven the minimum number of water molecules per ion pair for assured biological activity in ionic liquid-water mixtures?

被引:57
作者
Ohno, Hiroyuki [1 ,2 ,3 ]
Fujita, Kyoko [1 ,2 ,3 ]
Kohno, Yuki [1 ,2 ]
机构
[1] Tokyo Univ Agr & Technol, Dept Biotechnol, Koganei, Tokyo 1848588, Japan
[2] Tokyo Univ Agr & Technol, Grad Sch Engn, FILL, Koganei, Tokyo 1848588, Japan
[3] Japan Sci & Technol Agcy JST, CREST, Chiyoda Ku, Tokyo 1020076, Japan
基金
日本学术振兴会;
关键词
CYTOCHROME-C; COLD CRYSTALLIZATION; PHASE-CHANGE; ZWITTERIONS; STABILITY; PROTEINS; ACID;
D O I
10.1039/c5cp00768b
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Ionic liquids (ILs) containing small amounts of water are called hydrated ILs and they show diverse physico-chemical properties that are strongly dependent on their water content. Some properties of hydrated ILs, such as biological activity and phase transition behaviour, were found to change non-linearly, with an inflection at a water molecule to ion pair ratio of around 7 : 1. This critical hydration number of ILs has been discussed in this paper with respect to the state of solvated water molecules.
引用
收藏
页码:14454 / 14460
页数:7
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