Artículo
Porous Copper Oxide Thin Film Electrodes for Non-Enzymatic Glucose Detection
Autor/es | Carinelli, Soledad
Salazar-Carballo, Pedro A. Rosa Melián, Julio Ernesto de la García-García, Francisco J. |
Departamento | Universidad de Sevilla. Departamento de Ingeniería y Ciencia de los Materiales y del Transporte |
Fecha de publicación | 2023-04 |
Fecha de depósito | 2023-07-17 |
Premios | Premio Mensual Publicación Científica Destacada de la US. Escuela Politécnica Superior |
Resumen | The present work describes novel copper oxide thin film-modified indium tin oxide electrodes prepared by magnetron sputtering and their application for glucose sensing. Copper oxide-modified sensors were characterized by ... The present work describes novel copper oxide thin film-modified indium tin oxide electrodes prepared by magnetron sputtering and their application for glucose sensing. Copper oxide-modified sensors were characterized by electrochemical techniques, X-ray photoelectron spectroscopy (XPS), and scanning electron microscopy (SEM). The deposited thin film (of about 400 nm of thickness) consisted of Cu2O/CuO nanocolumns of ca. 80 nm in diameter. After optimizing the main experimental parameters, the electrodes showed noteworthy electrocatalytic properties for glucose detection (sensitivity ca. 2.89 A M−1 cm−2 and limit of detection ca. 0.29 μM (S/N = 3)). The sensor showed negligible response against common electroactive species and other sugars. Finally, recovery experiments in commercial soda drinks and the determination of glucose content in different commercial drinks, such as soda, tea, fruit juices, and sports drinks, are described. |
Agencias financiadoras | Interreg MAC 2014–2020 program project MacBioidi 2 |
Identificador del proyecto | MacBioidi 2 |
Ficheros | Tamaño | Formato | Ver | Descripción |
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Ch_rosa-melian_2023_porous.pdf | 3.205Mb | [PDF] | Ver/ | |