Suppression of Proton Mobility by Hydrophobic Hydration

被引：26

作者：

Bonn, Mischa ^{[1
]}

Bakker, Huib J. ^{[1
]}

Rago, Gianluca ^{[1
]}

Pouzy, Frederick ^{[2
,3
]}

Siekierzycka, Joanna R. ^{[2
,3
]}

Brouwer, Albert M. ^{[2
,3
]}

Bonn, Daniel ^{[2
,3
,4
]}

机构：

[1] FOM Inst Atom & Mol Phys, NL-1098 XG Amsterdam, Netherlands

[2] Univ Amsterdam, WZI, NL-1018 WS Amsterdam, Netherlands

[3] Univ Amsterdam, HIMS, NL-1018 WS Amsterdam, Netherlands

[4] Ecole Normale Super, Lab Phys Stat, F-75231 Paris 05, France

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2009年 / 131卷 / 47期

关键词：

WATER REORIENTATION; BACTERIORHODOPSIN; TRANSPORT; SIMULATIONS; MECHANISM;

D O I：

10.1021/ja9083094

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Fluorescence microscopy and conductivity measurements reveal a remarkably strong effect of hydrophobic groups on the mobility of protons in water. The addition of 5 M of tetramethylurea (4 methyl, groups per molecule) results in a reduction of the proton mobility by a factor of similar to 10: hydrophobic hydration strongly suppresses proton mobility. These observations demonstrate the collective nature of aqueous proton transport.

引用

页码：17070 / +

页数：4

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