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Non-enzymatic amperometric glucose screen-printed sensors based on copper and copper oxide particles

Abstract: Non-enzymatic amperometric glucose sensors have gained much attention in the past decade because of the better chemical and thermal stability and biocompatibility compared to conventional sensors based on the use of biomolecules. This study focuses on a novel copper and copper oxide-based glucose sensor synthesized by an electrodeposition technique through a rigorous protocol which reports an excellent analytical performance due to its structure and its increased active area. In addition, the linear response range, detection limit and sensitivity were 0.5-5.0 mmol L-1, 0.002 mmol L-1, 904 uA mmol-1 L- cm-2, respectively. Results show a reliable electrode as it is chemically stable, exhibits rapid and excellent sensitivity, and it is not significantly affected by coexisting species present in the blood samples; furthermore, it reports a maximum relative standard deviation error (RSD) of 6%, and showed long operating life as the electrode was used for thousand measurements of 4.0 mmol L-1 glucose solution during three days.

 Autoría: Guati C., Gomez-Coma L., Fallanza M., Ortiz I.,

 Fuente: Applied Sciences, 2021, 11(22), 10830

 Editorial: MDPI

 Fecha de publicación: 17/11/2021

 Nº de páginas: 14

 Tipo de publicación: Artículo de Revista

 DOI: 10.3390/app112210830

 ISSN: 2076-3417

 Proyecto español: RTI2018-093310-B-I00