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Updated: Jan 25, 2026

Development and Functionalization of Electrolyte-Gated Graphene Field-Effect Transistor for Biomarker Detection
Published on: February 1, 2022
Probing the Performance of Glucose Oxidase Treated Graphene-Based Field Effect Transistors
Salma Siddique1, Hamid Mukhtar1
1Institute of Industrial Biotechnology, GC University Lahore, Lahore 54000, Pakistan.
Abstract:
Graphene due to its unique properties of biocompatibility has received considerable attention for biosensing applications. Here, we report the effect of glucose oxidase treatment on the graphene devices. Raman spectroscopy and the electrical transport measurements are performed to study the graphene intrinsic characteristics before glucose oxidase treatment. The absence of the defect peak in the Raman spectrum shows high-quality graphene. The modulation in the electrical properties is further investigated by different period of glucose oxidase treatment. Our results illustrate that the mobility of the graphene-based field effect transistor is gradually enhanced with the glucose oxidase treatment time. The enhancement in the electrical performance of graphene FET with the biomolecules could be the suitable route for the bioelectronic devices.
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