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FET-based biosensor incorporating a conductometricbioreceptor

Published online by Cambridge University Press:  01 February 2011

Andrés Vercik
Andrés Vercik*
Affiliation:
Basic Sciences Department ZAB/FZEA, University of São Paulo, Av. Duque de Caxias Norte 225, 13635-000, Pirassununga, SP, Brazil.
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Abstract

Novel strategies of transduction may help to improve the biosensorperformance by enhancing its sensitivity or linearity or by allowing abetter integration with the electronics, which in turn favors theminiaturization of the sensing devices. In this work, a combination of aconductometric element containing the bioreceptor with a MOSFET is proposedas a transduction strategy. Simulations of the gate voltage and draincurrent versus conductance curves are used to confirm the feasibility of theproposed strategy. One of the advantages of the presented device is that thesensing element can be deposited by back-end processes compatible withcurrent IC technology.

Keywords

microelectronicssensorsimulation

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References

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