Interaction of thin wetting films of lecithin with some divalent cations

被引：6
作者：
Karabaliev, M
Kochev, V
机构：
[1] Trakia Univ, Fac Med, Dept Phys & Biophys, Stara Zagora 6003, Bulgaria
[2] Sofia Univ Kl Ohridsky, Dept Atom Phys, Sofia 1164, Bulgaria
来源：
BIOELECTROCHEMISTRY | 2004年 / 63卷 / 1-2期
关键词：
solid supported lipid films; model membrane; divalent cations; glassy carbon; impedimetry; cyclic voltammetry;
D O I：
10.1016/j.bioelechem.2003.10.018
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：
The impact of some divalent cations on the structure of a model membrane system, comprising wetting lipid films, is assayed in this work. The results from impedimetry suggest prominent structural changes upon the addition of the discussed ions to the electrolyte solution contacting the film. These changes are manifested by the increase of resistivity of the films as well as by the decrease of capacitance dispersion. In accordance with other data in the literature, manganese (Mn2+) turned out to have an effect greater than those of Mg2+ and Ca2+. (C) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码：177 / 181
页数：5
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