CONFIGURATIONAL CHANGES ACCOMPANYING VESICULATION OF MIXED SINGLE-CHAIN AMPHIPHILES

被引：37

作者：

AMBUHL, M ^{[1
]}

BANGERTER, F ^{[1
]}

LUISI, PL ^{[1
]}

SKRABAL, P ^{[1
]}

WATZKE, HJ ^{[1
]}

机构：

[1] SWISS FED INST TECHNOL,TECH CHEM LAB,CH-8092 ZURICH,SWITZERLAND

来源：

LANGMUIR | 1993年 / 9卷 / 01期

关键词：

D O I：

10.1021/la00025a011

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A new and versatile self-vesiculating amphiphile system based on amino acid surfactants is described which allows the investigation of changes in surfactant organization. Vesicle formation from catanionic micellar mixtures was confirmed by freeze fracture electron microscopy and quasi-elastic light scattering measurements. Molecular reorganization of the N-methylated amino acid headgroups upon vesiculation (E- and Z-configuration equilibrium) was revealed by using sodium N-lauroylsarcosinate [137-16-6] as anionic component. The fraction of E-configuration increases significantly upon vesicle formation. Further evidence for a bilayer structure of the aggregates was provided by NMR relaxation measurements and chemical shift behavior.

引用

页码：36 / 38

页数：3

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