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학술지 Fabrication and Characterization of an OTFT-Based Biosensor Using a Biotinylated F8T2 Polymer
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저자
임상철, 양용석, 김성현, 김진식, 윤두협, 정태형, 권지영, 황도훈, 김도진
발행일
200912
출처
ETRI Journal, v.31 no.6, pp.647-652
ISSN
1225-6463
출판사
한국전자통신연구원 (ETRI)
DOI
https://dx.doi.org/10.4218/etrij.09.1209.0001
협약과제
09MB2800, 모바일 플렉시블 입출력 플랫폼, 조경익
초록
Solution-processable organic semiconductors have been investigated not only for flexible and large-area electronics but also in the field of biotechnology. In this paper, we report the design and fabrication of biosensors based on completely organic thin-film transistors (OTFTs). The active material of the OTFTs is poly(9,9-dioctylfluoreneco-bithiophene) (F8T2) polymer functionalized with biotin hydrazide. The relationship between the chemoresistive change and the binding of avidin-biotin moieties in the polymer is observed in the output and on/off characteristics of the OTFTs. The exposure of the OTFTs to avidin causes a lowering of ID at VD = -40 V and VG = -40 V of nearly five orders of magnitude. Copyright © 2009 ETRI.
키워드
Avidin, Biosensor, Biotin, F8T2, Organic semiconductor, OTFTs, Polymer
KSP 제안 키워드
Active materials, Avidin-biotin, Design and fabrication, Orders of magnitude, Organic thin-film transistors (otfts), Solution-processable organic semiconductors, Thin-Film Transistor(TFT), fabrication and characterization, large-area electronics, polymer solution, thin film(TF)