Equilibrium (NAD +/NADH) potential on poly(Neutral Red) modified electrode

The electrochemical regeneration of nicotinamide adenine dinucleotide (NAD +/NADH) has been one of the central subjects of bioelectrochemistry during past three decades. We report on the unique chemical electrocatalyst for NAD +/NADH regeneration based on electropolymerized Neutral Red. Using poly(N...

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Bibliographic Details
Published in:Electrochemistry communications 2003-08, Vol.5 (8), p.677-680
Main Authors: Karyakin, Arkady A., Ivanova, Yulia N., Karyakina, Elena E.
Format: Article
Language:English
Subjects:
Electropolymerized Neutral Red
Equilibrium potential
NAD +/NADH regeneration
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Summary:The electrochemical regeneration of nicotinamide adenine dinucleotide (NAD +/NADH) has been one of the central subjects of bioelectrochemistry during past three decades. We report on the unique chemical electrocatalyst for NAD +/NADH regeneration based on electropolymerized Neutral Red. Using poly(Neutral Red) modified electrodes, the reversible polarographic waves of nicotinamide adenine dinucleotide reduction–oxidation and the equilibrium (NAD +/NADH) potential were observed. This was impossible using all known catalytic and mediator systems. The unique poly(Neutral Red) based electrocatalyst allowed us to determine the standard (NAD +/NADH) potential more precisely ( E ′≅0.59 V SCE, pH 6.0).
ISSN:1388-2481
1873-1902
DOI:10.1016/S1388-2481(03)00152-8