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We have studied the potential electrocatalytic activity towards the oxidation of NADH of several oxidation products of guanine and its derivative guanosine-5′-monophosphate (5′-GMP) on pyrolytic graphite electrodes (PGE). The distribution of products generated strongly depends on the experimental conditions. Our investigations focused on the oxidation products that are adsorbed on the electrode surface,...
A new and simple electrochemical method capable to detect single-base mutations in DNA has been developed. It relies on the electrocatalytic oxidation of NADH by the intercalator Brilliant Cresyl Blue (BCB). Whereas negligible catalytic responses were obtained with graphite electrodes modified by BCB-single-stranded DNA, high catalytic activity is obtained at electrodes modified by the complexes between...
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