Demonstration of EDL modulated FET biosensors with impedance analysis

Chang Run Wu, Shin Li Wang, Po Hsuan Chen, Jung Chih Chen, Yu Lin Wang

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

In this study, the electric double layer (EDL) modulated FET biosensor is demonstrated with impedance analysis. The unique sensor design allow protein to be detectable in high ionic strength solution. The enhanced EDL created by applying higher gate voltage is the key role to modulate the FET, causing the high sensitivity. AC impedance analysis is introduced to demonstrate the capacitance nature in our sensor system. The transduction signal of C-reactive protein (CRP) detection is dominated by imaginary part of impedance. With enhanced EDL and high transconductance of FET, this novel technology allow protein to be detectable in physiological sample without any sample pretreatment.

Original languageEnglish
Title of host publication237th ECS Meeting
Subtitle of host publicationSolid-State Electronics and Photonics in Biology and Medicine 7
EditorsY.-L. Wang, W. Wu, Z.-H. Lin, A. M. Hoff, C.-T. Lin, L. F. Marsal, J. Deen, T. Sakata, Z. P. Aguilar
PublisherInstitute of Physics Publishing
Pages43-48
Number of pages6
Edition6
ISBN (Electronic)9781607685395
DOIs
StatePublished - 1 Apr 2020
Event237th ECS Meeting with the 18th International Meeting on Chemical Sensors, IMCS 2020 - Montreal, Canada
Duration: 10 May 202014 May 2020

Publication series

NameECS Transactions
Number6
Volume97
ISSN (Print)1938-6737
ISSN (Electronic)1938-5862

Conference

Conference237th ECS Meeting with the 18th International Meeting on Chemical Sensors, IMCS 2020
CountryCanada
CityMontreal
Period10/05/2014/05/20

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