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

• Type: Article in International Scientific Journal
• Date: 2005

Authors

Gulaboski, R (Author) Other; Pereira, CM (Author) FCUP; Cordeiro, MNDS (Author) FCUP; Bogeski, I (Author) Other; Ferreira, E (Author) Other; Ribeiro, D (Author) Other; Chirea, M (Author) FCUP; Silva, AF (Author) FCUP

Journal

Title: Journal of Physical Chemistry B

Vol. 109

Pages: 12549-12559

ISSN: 1520-6106

Publisher: American Chemical Society

Indexing

ISI Web of Knowledge - 17 Citations

Scopus - 17 Citations

Scientific classification

FOS: Natural sciences > Chemical sciences

Other information

Authenticus ID: P-000-2ST

DOI: 10.1021/jp050929b

Abstract (EN): 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.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 11