A Stimulation and Measurement System for the Characterization of Graphene FET Biosensors

This paper presents the description of a system developed to automate the procedures for stimulation, measurement and electrical characterization of a Graphene Field-effect (GFET) biosensor which was developed aiming the diagnosis of viral infections in the point of care. The paper describes the str...

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Bibliographic Details
Published in:	2024 8th International Symposium on Instrumentation Systems, Circuits and Transducers (INSCIT) pp. 1 - 5
Main Authors:	Mariano, Danilo Garcia, Bastos, Fabrinni Dias, de Oliveira Mota, Hilton, Costa, Joao Guilherme, Torres, Vitor Angelo M. F., de Sousa Lacerda, Camila Maria, Plentz, Flavio
Format:	Conference Proceeding
Language:	English
Published:	IEEE 02-09-2024
Subjects:	Biosensors Data mining Electric variables measurement Feature extraction Genetics Graphene Object recognition Point of care Shape Zika virus
Online Access:	Get full text
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Summary:	This paper presents the description of a system developed to automate the procedures for stimulation, measurement and electrical characterization of a Graphene Field-effect (GFET) biosensor which was developed aiming the diagnosis of viral infections in the point of care. The paper describes the structure of the biosensor, how its electrical characterization can be used to identify a virus and presents the arrangement built to stimulate and measure its electrical response. Next, we describe the test procedures and the methods to construct the GFET characteristic curves. We explain how the presence of virus genetic materials reflect on these curves and present an example of identification of Zika virus. The system allows the extraction of several parameters that can be used to automate the diagnosis, which is part of the investigation in progress.
DOI:	10.1109/INSCIT62583.2024.10693379