Electrochemical study of ion transfer of acetylcholine across the interface of water and a lipid-modified 1,2-dichloroethane

被引：16

作者：

Gulaboski, R ^{[1
]}

Pereira, CM ^{[1
]}

Cordeiro, MNDS ^{[1
]}

Bogeski, I ^{[1
]}

Ferreira, E ^{[1
]}

Ribeiro, D ^{[1
]}

Chirea, M ^{[1
]}

Silva, AF ^{[1
]}

机构：

[1] Univ Porto, Fac Ciencias, Dept Quim, P-4169007 Oporto, Portugal

来源：

JOURNAL OF PHYSICAL CHEMISTRY B | 2005年 / 109卷 / 25期

关键词：

D O I：

10.1021/jp050929b

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：

The ion transfer of acetylcholine (AcH+) ions across the unmodified and phospholipid-modified water 1,2-dichloroethane (DCE) interface has been studied by means of square-wave and cyclic voltammetry, as well as by electrochemical impedance spectroscopy. After being transferred in the organic phase, the AcH+ ions undergo chemical reactions with the phospholipids. The overall behavior of the experimental system studied in the presence of phospholipids has been compared with the theoretical results of an ECrev reaction. The kinetic parameters of the chemical interactions between AcH+ and the phospholipids have been determined from the voltammetric and impedance measurements. Additional characterization of those interactions has been made by using the surface tension measurements.

引用

页码：12549 / 12559

页数：11

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