RT info:eu-repo/semantics/article
T1 Gas sensor for 4-ethylguaiacol detection based on tyrosinase enzymatic activity in a deep eutectic solvent
A1 Portugal Gómez, Paula
A1 Svigelj, Rossella
A1 Zanette, Fabiola
A1 Toniolo, Rosanna
A1 Domínguez Renedo, Olga
A1 Alonso Lomillo, Mª Asunción
K1 Phenols
K1 Screen-printed carbon electrodes
K1 Nanomaterials
K1 Gas sensor
K1 Deep eutectic solvents
K1 Wine analysis
K1 Vinos-análisis
K1 Wine and wine making-Analysis
AB The use of environmentally friendly, cost-effective and biodegradable deep eutectic solvents (DESs) as nonaqueous solvents and electrolytes offers a promising avenue for enhancing enzymatic sensors and extending their applicability to the gas phase. In this study, an assembly is presented that includes a paper crown modified with tyrosinase enzyme, soaked in a DES and positioned on a disposable screen-printed carbon electrode. The paper crown contacts the outer edge of the carbon disk working electrode, as well as the peripheral counter and reference electrodes. This assembly yields a portable and disposable electrochemical platform, effortlessly immobilising DESs onto a porous and economical supporting material like paper. Moreover, the entire configuration resulted in a sensitive, rapidly responsive, membrane-free gas sensor whose response time depended exclusively on the enzymatic reaction. The electroanalytical capabilities of this setup were evaluated through voltammetric and amperometric determinations of phenols in synthetic and real wine samples. The proposed gas enzymatic sensor demonstrated excellent analytical performance for detecting phenolic compounds, offering fast measurement times, simple operation, high sensitivity, wide linear range and good repeatability.
PB Springer
SN 0026-3672
YR 2025
FD 2025-05
LK https://hdl.handle.net/10259/11598
UL https://hdl.handle.net/10259/11598
LA eng
NO This research was supported by PID2023-149522OB-100 funded by MCIU/AEI/https://doi.org/10.13039/501100011033/FEDER,UE, and by the Italian Ministry of University and Research (PON 2014–2020, Action IV.6, 34-G-19900–3, project title “Smart Green Biosensors To Improve Food Sustainability and Environmental Preservation”).
DS Repositorio Institucional de la Universidad de Burgos
RD 11-may-2026