Hydrophobic interaction of two large plates: An analysis of salting-in/salting-out effects

被引：20

作者：

Graziano, Giuseppe ^{[1
]}

机构：

[1] Univ Sannio, Dipartimento Sci Biol & Ambientali, I-82100 Benevento, Italy

来源：

CHEMICAL PHYSICS LETTERS | 2010年 / 491卷 / 1-3期

关键词：

SCALED PARTICLE THEORY; TEMPERATURE-DEPENDENCE; PROTEIN STABILITY; HYDROGEN-BONDS; WATER MODELS; THERMODYNAMICS; IONS; SOLUBILITY; HYDRATION; DIMERIZATION;

D O I：

10.1016/j.cplett.2010.03.092

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：

The decrease in water accessible surface area drives the association of two large hydrophobic plates in both water and aqueous salt solutions: the contact configuration of the two plates possesses the minimum Gibbs energy in all cases. High charge density ions, having strong electrostatic attractions with waters, render more costly the process of cavity creation, as determined by classic scaled particle theory calculations, and strengthen pairwise hydrophobic interaction. Low-charge density ions, being preferentially bound to plate surfaces due to dispersion interactions, have to be removed to arrive at the contact configuration and weaken pairwise hydrophobic interaction. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：54 / 58

页数：5

共 34 条

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