Porous Copper Oxide Thin Film Electrodes for Non-Enzymatic Glucose Detection
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 scannin...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-04-01
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| Series: | Chemosensors |
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| Online Access: | https://www.mdpi.com/2227-9040/11/5/260 |
| _version_ | 1797600674754592768 |
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| author | Soledad Carinelli Pedro A. Salazar-Carballo Julio Ernesto De la Rosa Melián Francisco García-García |
| author_facet | Soledad Carinelli Pedro A. Salazar-Carballo Julio Ernesto De la Rosa Melián Francisco García-García |
| author_sort | Soledad Carinelli |
| collection | DOAJ |
| description | 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 Cu<sub>2</sub>O/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<sup>−1</sup> cm<sup>−2</sup> 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. |
| first_indexed | 2024-03-11T03:51:12Z |
| format | Article |
| id | doaj.art-e2db623454674b1480374046d7137cfe |
| institution | Directory Open Access Journal |
| issn | 2227-9040 |
| language | English |
| last_indexed | 2024-03-11T03:51:12Z |
| publishDate | 2023-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Chemosensors |
| spelling | doaj.art-e2db623454674b1480374046d7137cfe2023-11-18T00:53:45ZengMDPI AGChemosensors2227-90402023-04-0111526010.3390/chemosensors11050260Porous Copper Oxide Thin Film Electrodes for Non-Enzymatic Glucose DetectionSoledad Carinelli0Pedro A. Salazar-Carballo1Julio Ernesto De la Rosa Melián2Francisco García-García3Laboratory of Sensors, Biosensors and Advanced Materials, Faculty of Health, Sciences, University of La Laguna, Campus de Ofra s/n, 38071 La Laguna, 38200 Tenerife, SpainLaboratory of Sensors, Biosensors and Advanced Materials, Faculty of Health, Sciences, University of La Laguna, Campus de Ofra s/n, 38071 La Laguna, 38200 Tenerife, SpainDepartment of Engineering and Science of Materials and Transport, Higher Polytechnic School, University of Sevilla, Virgen de África 7, 41011 Seville, SpainDepartment of Engineering and Science of Materials and Transport, Higher Polytechnic School, University of Sevilla, Virgen de África 7, 41011 Seville, SpainThe 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 Cu<sub>2</sub>O/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<sup>−1</sup> cm<sup>−2</sup> 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.https://www.mdpi.com/2227-9040/11/5/260copper oxideglucosenon-enzymatic sensormagnetron sputteringoblique angle deposition |
| spellingShingle | Soledad Carinelli Pedro A. Salazar-Carballo Julio Ernesto De la Rosa Melián Francisco García-García Porous Copper Oxide Thin Film Electrodes for Non-Enzymatic Glucose Detection Chemosensors copper oxide glucose non-enzymatic sensor magnetron sputtering oblique angle deposition |
| title | Porous Copper Oxide Thin Film Electrodes for Non-Enzymatic Glucose Detection |
| title_full | Porous Copper Oxide Thin Film Electrodes for Non-Enzymatic Glucose Detection |
| title_fullStr | Porous Copper Oxide Thin Film Electrodes for Non-Enzymatic Glucose Detection |
| title_full_unstemmed | Porous Copper Oxide Thin Film Electrodes for Non-Enzymatic Glucose Detection |
| title_short | Porous Copper Oxide Thin Film Electrodes for Non-Enzymatic Glucose Detection |
| title_sort | porous copper oxide thin film electrodes for non enzymatic glucose detection |
| topic | copper oxide glucose non-enzymatic sensor magnetron sputtering oblique angle deposition |
| url | https://www.mdpi.com/2227-9040/11/5/260 |
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