Modification of boron doped diamond electrodes with glucose oxidase, characterization by electrochemical techniques

RODRIGO DEL RÍO ^[1] ; FRANCISCO ARMIJO ^[1] ; RICARDO SCHREBLER ^[2] ; GABRIELA DEL CANTO ^[1] ; CLAUDIA VERGARA ^[1] ; CESAR GUTIERREZ ^[1]
1. [1] Pontificia Universidad Católica de Chile
  
  Pontificia Universidad Católica de Chile
  
  Santiago, Chile
2. [2] Pontificia Universidad Católica de Valparaíso
  
  Pontificia Universidad Católica de Valparaíso
  
  Valparaíso, Chile
Localización: Journal of the Chilean Chemical Society (Boletín de la Sociedad Chilena de Química), ISSN-e 0717-6309, ISSN 0366-1644, Vol. 56, Nº. 1, 2011, págs. 621-624
Idioma: inglés
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Resumen
- In this work, we report the effect of the direct successive modifications with Glucose oxidase onto boron doped diamond electrode (BDD). The modification due to the enzyme adsorption, on the potentiodynamic response of the electrode, was evaluated using Fe(CN)6(4-/3-) red-ox couple on the electrolyte and the AEp variations were related with the number of modifications. Contact angle measurements and the electrochemical impedance spectra were also used to characterized the modifications and they showed variations in the same way that the potentiodynamic data.