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Updated: Jul 12, 2026

Development and Functionalization of Electrolyte-Gated Graphene Field-Effect Transistor for Biomarker Detection
Published on: February 1, 2022
A biosensor based on graphite epoxy composite electrode for aspartame and ethanol detection
Ulkü Anik Kirgöz1, Dilek Odaci, Suna Timur
1Mugla University, Faculty of Arts and Science, Chemistry Department, 48000-Kötekli, Mugla, Turkey. ulkuanik@yahoo.com
Abstract:
A gelatin membrane with carboxyl esterase and alcohol oxidase was subsequently integrated onto the surface of a graphite epoxy composite electrode (GECE). The developed biosensors showed linearity in the range of 2.5-400 microM for aspartame and 2.5-25 microM for ethanol with response times of 170 and 70s for each analyte, respectively. The resulting bienzyme biosensor was used for aspartame detection in diet coke samples and ethanol detection in beer and wine samples. From the obtained results, it can be concluded that the developed biosensor is a selective, practical and economic tool for aspartame and ethanol detection in real samples.
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