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Issue 10, 2003
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Ca2+ enhanced catalytic NADH oxidation: a coupled 31P-NMR and electrochemistry study

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Abstract

The Ca2+-promoted 500% increase in activity of nitrofluorenone modified electrodes towards NADH oxidation is studied by 31P-NMR. The interaction of Ca2+ with NADH on the one hand and with the redox mediator on the other hand, results in a conformational change of the coenzyme. This event occurs concomitantly with the observed current increase. A three-member complex, in which Ca2+ bridges a NADH phosphate and the carboxyl group of the mediator is proposed as the molecular key for the potentiation of the electrocatalytic current.

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Publication details

The article was received on 23 Dec 2002, accepted on 01 Apr 2003 and first published on 17 Apr 2003


Article type: Paper
DOI: 10.1039/B212605B
Citation: Phys. Chem. Chem. Phys., 2003,5, 2082-2088
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    Ca2+ enhanced catalytic NADH oxidation: a coupled 31P-NMR and electrochemistry study

    N. Mano, A. Kuhn, S. Menu and E. J. Dufourc, Phys. Chem. Chem. Phys., 2003, 5, 2082
    DOI: 10.1039/B212605B

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