Electrocatalytic Oxidation of NADH Using a Novel Modified Electrode with a Ruthenium Complex Containing Phenanthroline Quinone

Keiko Yokoyama, Yoshikazu Ueda, Nobuhumi Nakamura, Hiroyuki Ohno

doi:10.1246/cl.2005.346

Electrocatalytic Oxidation of NADH Using a Novel Modified Electrode with a Ruthenium Complex Containing Phenanthroline Quinone

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Keiko Yokoyama

Department of Biotechnology and Life Science, Tokyo University of Agriculture and Technology
Yoshikazu Ueda

Department of Biotechnology and Life Science, Tokyo University of Agriculture and Technology
Nobuhumi Nakamura

Department of Biotechnology and Life Science, Tokyo University of Agriculture and Technology
Hiroyuki Ohno

Department of Biotechnology and Life Science, Tokyo University of Agriculture and Technology

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<jats:title>Abstract</jats:title> <jats:p>A ruthenium complex containing phenanthroline quinone, [Ru(pdon)2(aphen)](ClO4)2 (pdon = 1,10-phenanthroline-5,6-dione, aphen = 5-amino-1,10-phenanthroline) (1), was prepared as an electrocatalytic adsorbate on a gold electrode. Immobilization of 1 on the gold electrode was confirmed by surface enhanced resonance Raman spectroscopy. The rate constant ks was calculated as 10 s−1 at pH 7.0. The electrocatalytic oxidation of NADH using this modified electrode was investigated.</jats:p>