Electrochemical study of sulphonated ferrocenes as redox mediators in enzyme electrodes

The electrochemical oxidation of mono and disulphonic derivatives of ferrocene (dicyclopentadienyliron) to ferricinium was studied by cyclic voltammetry in aqueous solutions. Both redox systems show fast electrode kinetics on gold, platinum and carbon electrodes. As expected, the sulphonic derivativ...

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Detalles Bibliográficos
Autor principal: Liaudet, E.
Otros Autores: Battaglini, Fernando, Calvo, E.J
Formato: Capítulo de libro
Lenguaje:Inglés
Publicado: 1990
Acceso en línea:Registro en Scopus
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Registro en la Biblioteca Digital
Aporte de:Registro referencial: Solicitar el recurso aquí
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100 1 |a Liaudet, E. 
245 1 0 |a Electrochemical study of sulphonated ferrocenes as redox mediators in enzyme electrodes 
260 |c 1990 
270 1 0 |m Liaudet, E. 
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504 |a W.J. Albery, P.N. Bartlett, B.J. Driscoll and R.B. Lennox, unpublished results; P.N. Bartlett, private communication, 1990; Bourdillon, Hervaganet, Thomas, (1985) Biotechnol. Bioeng., 27, p. 1619 
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504 |a P.N. Bartlett, private communication, 1988; Castner, Wingard, Jr., (1984) Biochemistry, 23, p. 2203 
506 |2 openaire  |e Política editorial 
520 3 |a The electrochemical oxidation of mono and disulphonic derivatives of ferrocene (dicyclopentadienyliron) to ferricinium was studied by cyclic voltammetry in aqueous solutions. Both redox systems show fast electrode kinetics on gold, platinum and carbon electrodes. As expected, the sulphonic derivatives are more oxidant than the unsubstituted ferrocene. Ferrocene sulphonates are efficient electron mediators in redox enzyme catalysis for the anaerobic oxidation of glucose catalyzed by glucose oxidase (GOD). The second order rate coefficients for the oxidation of reduced GOD (FADH2), k, are 9.5 × 104 and 9.0 ×103 1 mol-1 s-1 respectively, for mono and disulphonic derivatives at pH 4.7. Due to the increased solubility of sulphonic derivatives, the complete redox-enzymatic kinetic analysis can be made. © 1990.  |l eng 
536 |a Detalles de la financiación: Secretaria de Ciencia y Tecnica, Universidad de Buenos Aires 
536 |a Detalles de la financiación: Consejo Nacional de Investigaciones Científicas y Técnicas 
536 |a Detalles de la financiación: The authors wish to thank the Argentine Science Research Council (CONICET) and the Biotechnology Programme (PNB) of the Argentine Science and Technology Secretariat (SECYT) for financial support. A scholarship (E.L.) from the IAESTE student exchange prograrnme is highly appreciated. The initial part of this work was carried out at Instituto National de Tecnologia Industrial (INTI), Argentina. 
593 |a Departamento de Químicia Inorgánica, Analítica y Química Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Pabellon II, Ciudad Universitaria, 1428, Buenos AiresArgentina 
690 1 0 |a BIOCHEMISTRY 
690 1 0 |a CHEMICAL REACTIONS - REDOX 
690 1 0 |a ELECTRODES, ELECTROCHEMICAL - ENZYMES 
690 1 0 |a ENZYMES - ENZYME KINETICS 
690 1 0 |a ELECTRON MEDIATORS 
690 1 0 |a ENZYME ELECTRODES 
690 1 0 |a SULFONATED FERROCENES 
690 1 0 |a ORGANOMETALLICS 
700 1 |a Battaglini, Fernando 
700 1 |a Calvo, E.J. 
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