IMPEDANCE SPECTROSCOPY OF BIOMEMBRANE LANGMUIR-BLODGETT-FILMS

被引：4
|
作者：
HOWARTH, VA
PETTY, MC
机构：
[1] Molecular Electronics Research Group, School of Engineering and Computer Science, University of Durham, Durham, DH1 3LE, South Road
来源：
THIN SOLID FILMS | 1994年 / 244卷 / 1-2期
关键词：
D O I：
10.1016/0040-6090(94)90608-4
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The technique of a.c. impedance spectroscopy is used to investigate biomembrane Langmuir-Blodgett (LB) films deposited on platinum electrodes. The characterization of the uncoated electrode system is first of all described. Measurements of the complex admittance of a multilayer of 22-tricosenoic acid are then presented. The results show that the specific resistance and inverse capacitance of the multilayer vary linearly with the number of layers. Two valinomycin-containing mixed LB film systems were also examined. When these systems were immersed in KCl electrolytes, the expected changes in film conductance were not observed. Possible explanations for the lack of a potassium response are proposed.
引用
收藏
页码：951 / 954
页数：4
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