Non-enzymatic glucose detection based on cuprous oxide thin film synthesized via electrochemical deposition

• Published in: Applied physics. A, Materials science & processing Vol. 127; no. 3
• Main Authors: Laidoudi, Samiha, Khelladi, Mohamed Redha, Lamiri, Leila, Belgherbi, Ouafia, Boudour, Samah, Dehchar, Charif, Boufnik, Rabah
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer Berlin Heidelberg 2021; Springer Nature B.V
• Subjects: Applied physics; Atomic force microscopy; Characterization and Evaluation of Materials; Chemical sensors; Condensed Matter Physics; Copper oxides; Glucose; Machines; Manufacturing; Materials science; Microscopy; Morphology; Nanotechnology; Optical and Electronic Materials; Physics; Physics and Astronomy; Processes; Sensitivity; Sensors; Surfaces and Interfaces; Thin Films; Electrochemical deposition; Non-enzymatic; Cuprous oxide; Glucose oxidation; Thin film
• ISSN: 0947-8396; 1432-0630
• DOI: 10.1007/s00339-021-04299-x

In this study, a non-enzymatic glucose sensor is proposed which offers a simple approach for glucose detection with a considerable sensitivity and cost-effectivity. In this regard, an electrodeposited Cu 2 O/ITO electrode as electrochemical sensor and its analytical performances evaluation for glucose detection in alkaline medium are performed. The as-prepared Cu 2 O/ITO sample has been characterized using X-ray diffraction, scanning electron microscopy and atomic force microscopy in order to investigate its structure and morphology. The developed electrochemical sensor enables the detection of glucose with a sensitivity of 2322.5 µA mM −1  cm −2 , over a linear range from 0.04 to 0.4 mM ( R 2  = 0.9989) and low detection limit of 4 μM. In addition, a good anti-interfering ability and a high stability were obtained.