Dilgin, Didem GirayGligor, DeliaGokcel, H. IsmetDursun, ZekeryaDilgin, Yusuf2025-01-272025-01-2720110026-36721436-5073https://doi.org/10.1007/s00604-011-0582-7https://hdl.handle.net/20.500.12428/24923A new approach is described for the photoelectrocatalytic oxidation of Reduced -Nicotinamide Adenine Dinucleotide (NADH). It is based on a glassy carbon electrode (GCE) modified with a film of poly-Neutral Red (poly-NR) that is obtained by electropolymerization. Electrochemical measurements revealed that the modified electrode displays electrocatalytic and photo-electrocatalytic activity towards oxidation of NADH. If irradiated with a 250-W halogen lamp, the electrode yields a strongly increased electrocatalytic current compared to the current without irradiation. Amperometric and photo-amperometric detection of NADH was performed at +150 mV vs. Ag/AgCl/KClsat and the currents obtained are linearly related to the concentration of NADH. Linear calibration plots are obtained in the concentration range from 1.0 mu M to 1.0 mM for both methods. However, the slope of the current-NADH concentration curve of the photo-electrocatalytic procedure was 2-times better than that obtained without irradiation.eninfo:eu-repo/semantics/closedAccessPhotoelectrocatalytic oxidationModified electrodeNeutral RedNADHArticle1733-446947610.1007/s00604-011-0582-7Q1WOS:0002905236000262-s2.0-79955886333Q1