Hydration pressure and phase transitions of phospholipids - I. Piezotropic approach

被引：12

作者：

Pfeiffer, H

Binder, H

Klose, G

Heremans, K

机构：

[1] Katholieke Univ Leuven, Dept Chem, B-3001 Louvain, Belgium

[2] Univ Leipzig, Inst Expt Phys 1, D-04103 Leipzig, Germany

来源：

BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES | 2003年 / 1609卷 / 02期

关键词：

phospholipid; hydration pressure; hydrostatic pressure; infrared; thermodynamics; lyotropic;

D O I：

10.1016/S0005-2736(02)00664-8

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

Dehydration reduces the main phase transition pressure of phospholipids. An analysis based on the Gibbs-Duhem equation shows how the shift of the transition pressure is correlated to the hydration pressure. By using Fourier transform infrared (FT-IR) spectroscopy we determined the hydration-dependent phase transition pressure. The application of our new approach gives hydration pressure values which agree with the values obtained with the osmotic stress method. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：144 / 147

页数：4