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Abstract:

Different redox polymers based on poly(allylamine) with covalently attached ferrocene and pyridine groups that coordinate iron and ruthenium complexes were prepared, and hydrogels were obtained by cross-linking them with epichlorohydrin. Charge propagation from the underlying electrode, through the redox polymer and electrical communication with the enzyme FADH2 of glucose oxidase, was studied by cyclic voltammetry and electrochemical impedance spectroscopy. The effects of electrolyte composition, concentration of enzyme and substrate, and electrode potential are reported. The role of different redox mediators covalentry attached to the polymer backbone is discussed in terms of driving force and electrostatic barriers.

Registro:

Documento: Artículo
Título:Electrical Communication between Electrodes and Enzymes Mediated by Redox Hydrogels
Autor:Calvo, E.J.; Etchenique, R.; Danilowicz, C.; Diaz, L.
Filiación:INQUIMAE, Fac. de Ciencias Exactes y Naturales, Universidad de Buenos Aires, AR-1428 Buenos Aires, Argentina
Facultad de Farmacia y Bioquimica, Universidad de Buenos Aires, Junin 956, AR-1113 Buenos Aires, Argentina
CONICET (Argentina)
Año:1996
Volumen:68
Número:23
Página de inicio:4186
Página de fin:4193
DOI: http://dx.doi.org/10.1021/ac960170n
Título revista:Analytical Chemistry
Título revista abreviado:Anal. Chem.
ISSN:00032700
CODEN:ANCHA
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00032700_v68_n23_p4186_Calvo

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Citas:

---------- APA ----------
Calvo, E.J., Etchenique, R., Danilowicz, C. & Diaz, L. (1996) . Electrical Communication between Electrodes and Enzymes Mediated by Redox Hydrogels. Analytical Chemistry, 68(23), 4186-4193.
http://dx.doi.org/10.1021/ac960170n
---------- CHICAGO ----------
Calvo, E.J., Etchenique, R., Danilowicz, C., Diaz, L. "Electrical Communication between Electrodes and Enzymes Mediated by Redox Hydrogels" . Analytical Chemistry 68, no. 23 (1996) : 4186-4193.
http://dx.doi.org/10.1021/ac960170n
---------- MLA ----------
Calvo, E.J., Etchenique, R., Danilowicz, C., Diaz, L. "Electrical Communication between Electrodes and Enzymes Mediated by Redox Hydrogels" . Analytical Chemistry, vol. 68, no. 23, 1996, pp. 4186-4193.
http://dx.doi.org/10.1021/ac960170n
---------- VANCOUVER ----------
Calvo, E.J., Etchenique, R., Danilowicz, C., Diaz, L. Electrical Communication between Electrodes and Enzymes Mediated by Redox Hydrogels. Anal. Chem. 1996;68(23):4186-4193.
http://dx.doi.org/10.1021/ac960170n