Article 2025 · 1 citations

Electrochemical Detection of Melatonin in the Presence of Dopamine on a Ce-Doped Poly(bromocresol purple)-Modified Electrode

Dogan, Hulya Ozturk, Celebi, Neslihan, Yuksel, Arzu Kavaz

Abstract

In this study, bromocresol purple was electropolymerized on the surface of a pencil graphite electrode (PGE) and electrochemically doped with cerium (Ce) nanoparticles. The Ce-doped poly(bromocresol purple) (Ce/PBCP)-modified PGE was characterized using energy dispersive X-ray spectroscopy, scanning electron microscopy, and X-ray photoelectron spectroscopy. The prepared Ce/PBCP electrode was investigated for the electrochemical determination of melatonin in the presence of dopamine. The electrochemical activity of the Ce/PBCP electrode was compared with that of undoped PBCP, Ce/PGE, and bare PGE. The peak potential and peak current for melatonin oxidation were +800 mV and 820 mu A cm-2, respectively. The detection limit of melatonin was 0.038 mu M, and the Ce/PBCP electrode exhibited high activity in the presence of interfering species. In addition, the use of a Ce/PBCP electrode for detecting melatonin in a terebinth sample, a real food sample, was also investigated, and the produced electrode demonstrated high performance.

Keywords

CARBON HYDRAZINE PLATINUM HORMONE SENSORS DRUG

WoS Categories

Chemistry, Multidisciplinary

Sustainable Development Goals

Good Health and Well-being

Citation

Journal: ACS OMEGA
Year: 2025
Volume: 10
Issue: 41
Pages: 48091-48099
ISSN: 2470-1343
DOI: 10.1021/acsomega.5c04226
WoS UID: WOS:001590499600001

Open via DOI