CAN ZWITTERIONIC AMPHIPHILIC BILAYERS STRUCTURE WATER IN LAYERS - AN EXPERIMENTAL-STUDY

被引：2

作者：

CHAPEL, JP

PEREZ, E

CHEVALIER, Y

机构：

[1] UNIV PARIS 07,F-75231 PARIS 05,FRANCE

[2] CNRS,MAT ORGAN LAB,F-69390 VERNAISON,FRANCE

来源：

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS | 1993年 / 76卷

关键词：

AMPHIPHILES; BILAYERS; SURFACE FORCES;

D O I：

10.1016/0927-7757(93)80061-I

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：

We have measured with use of a surface forces apparatus the short-range forces between two bilayers for a series of zwitterionic amphiphiles with different headgroup sizes and dipole moments. We found that the compression of two bilayers is discontinuous, revealing 1-3 steps of 0.27 +/- 0.05 nm. This corresponds to the characteristic size of water molecules squeezed out layer by layer, suggesting the structuring of water close to the bilayers. Other possibilities are discussed.

引用

页码：59 / 64

页数：6

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