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Graphene and CNT Field Effect Transistors Based Biosensor Models

Graphene and CNT Field Effect Transistors Based Biosensor Models

Ali Hosseingholi Pourasl, Mohammad Taghi Ahmadi, Meisam Rahmani, Razali Ismail, Michael Loong Pengl Tan
Copyright: © 2017 |Pages: 40
ISBN13: 9781522507369|ISBN10: 1522507361|EISBN13: 9781522507376
DOI: 10.4018/978-1-5225-0736-9.ch012
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MLA

Pourasl, Ali Hosseingholi, et al. "Graphene and CNT Field Effect Transistors Based Biosensor Models." Handbook of Research on Nanoelectronic Sensor Modeling and Applications, edited by Mohammad Taghi Ahmadi, et al., IGI Global, 2017, pp. 294-333. https://doi.org/10.4018/978-1-5225-0736-9.ch012

APA

Pourasl, A. H., Ahmadi, M. T., Rahmani, M., Ismail, R., & Tan, M. L. (2017). Graphene and CNT Field Effect Transistors Based Biosensor Models. In M. Ahmadi, R. Ismail, & S. Anwar (Eds.), Handbook of Research on Nanoelectronic Sensor Modeling and Applications (pp. 294-333). IGI Global. https://doi.org/10.4018/978-1-5225-0736-9.ch012

Chicago

Pourasl, Ali Hosseingholi, et al. "Graphene and CNT Field Effect Transistors Based Biosensor Models." In Handbook of Research on Nanoelectronic Sensor Modeling and Applications, edited by Mohammad Taghi Ahmadi, Razali Ismail, and Sohail Anwar, 294-333. Hershey, PA: IGI Global, 2017. https://doi.org/10.4018/978-1-5225-0736-9.ch012

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Abstract

In this chapter, novel ideas of graphene and CNT based electrical biosensors are provided. A liquid gated graphene field effect transistor (LG-GFET) based biosensor model is analytically developed for electrical detection of Escherichia coli (E. coli) bacteria. E. coli absorption effects on the graphene surface in the form of conductance variation is considered. Moreover, the current-voltage characteristic in terms of conductance model is applied to evaluate the performance of the biosensor model. Furthermore, the CNT-FET platform is employed for modeling biosensor in order to detect Glucose. For diagnosing and monitoring the blood glucose level, glucose oxidase (GOx) based enzyme sensors have been immensely used. According to the proposed CNT-FET structure, charge based analytical modeling approach is used. The charge-based carrier velocity model is implemented to study electrical characteristics of CNT-FET. In the presented model, the gate voltage is considered as a function of glucose concentration. Finally, the both of presented models are compared with published experimental data.

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