Electrochemical characterization of a templated insulating polymer-modified electrode
Electrochemical characterization of a templated insulating polymer-modified electrode
The controllable permselective behavior of templated poly-(1,2-diaminobenzene)-modified electrodes is illustrated, The electrochemical behavior of polymer films prepared from several media, conventional aqueous solution, liquid crystalline micellar solution, and liquid crystalline hexagonal phase solution, were compared using several cationic and anionic redox probes. Films deposited from the hexagonal liquid crystalline phase were shown to be ion selective, allowing positively charged ions through to read at the electrode surface while excluding negatively charged ions. This permselective behavior was unique to the hexagonally templated films and was not exhibited by films deposited from either the conventional aqueous or the micellar media (which were completely blocking to both types of ion). In addition, it was shown that by altering the ionic strength of the background electrolyte control over the charge selective behavior of the hexagonally templated films was possible.
films, 1, 2-diaminobenzene, selectivity, biosensors, permeation, oxidation, membranes, metals, sensor, thin
2855-2861
Elliott, J.M.
7f323ba1-3e5a-471c-8088-54c5dacc81a9
Cabuché, L.M.
25f976eb-15f0-48b1-800b-2df9645e12bb
Bartlett, P.N.
d99446db-a59d-4f89-96eb-f64b5d8bb075
2001
Elliott, J.M.
7f323ba1-3e5a-471c-8088-54c5dacc81a9
Cabuché, L.M.
25f976eb-15f0-48b1-800b-2df9645e12bb
Bartlett, P.N.
d99446db-a59d-4f89-96eb-f64b5d8bb075
Elliott, J.M., Cabuché, L.M. and Bartlett, P.N.
(2001)
Electrochemical characterization of a templated insulating polymer-modified electrode.
Analytical Chemistry, 73 (13), .
(doi:10.1021/ac001160w).
Abstract
The controllable permselective behavior of templated poly-(1,2-diaminobenzene)-modified electrodes is illustrated, The electrochemical behavior of polymer films prepared from several media, conventional aqueous solution, liquid crystalline micellar solution, and liquid crystalline hexagonal phase solution, were compared using several cationic and anionic redox probes. Films deposited from the hexagonal liquid crystalline phase were shown to be ion selective, allowing positively charged ions through to read at the electrode surface while excluding negatively charged ions. This permselective behavior was unique to the hexagonally templated films and was not exhibited by films deposited from either the conventional aqueous or the micellar media (which were completely blocking to both types of ion). In addition, it was shown that by altering the ionic strength of the background electrolyte control over the charge selective behavior of the hexagonally templated films was possible.
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Published date: 2001
Keywords:
films, 1, 2-diaminobenzene, selectivity, biosensors, permeation, oxidation, membranes, metals, sensor, thin
Identifiers
Local EPrints ID: 19471
URI: http://eprints.soton.ac.uk/id/eprint/19471
ISSN: 0003-2700
PURE UUID: 992dae71-8ceb-4345-83a6-55d439d88227
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Date deposited: 15 Feb 2006
Last modified: 16 Mar 2024 02:42
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Author:
J.M. Elliott
Author:
L.M. Cabuché
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