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Journal Article
Fabrication and Characterization of an OTFT-Based Biosensor Using a Biotinylated F8T2 Polymer
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- Authors
- Sang Chul Lim, Yong Suk Yang, Seong Hyun Kim, Zin Sig Kim, Doo Hyeb Youn, Tae Hyoung Zyung, Ji Young Kwon, Do Hoon Hwang, Do Jin Kim
- Issue Date
- 2009-12
- Citation
- ETRI Journal, v.31, no.6, pp.647-652
- ISSN
- 1225-6463
- Publisher
- 한국전자통신연구원 (ETRI)
- Language
- English
- Type
- Journal Article
- Project Code
- 09MB2800, Development of mobile flexible IOP platform, Cho Kyoung Ik
- Abstract
- 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.
- KSP Keywords
- 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)