文章基本信息

标题：Fabrication and Characterization of an OTFT-Based Biosensor Using a Biotinylated F8T2 Polymer
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作者：Lim, Sang-Chul ; Yang, Yong-Suk ; Kim, Seong-Hyun 等
期刊名称：ETRI Journal
印刷版ISSN：1225-6463
电子版ISSN：2233-7326
出版年度：2009
卷号：31
期号：6
页码：647-652
DOI：10.4218/etrij.09.1209.0001
语种：English
出版社：Electronics and Telecommunications Research Institute
摘要：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-dioctylfluorene-co-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 = -40 V and = -40 V of nearly five orders of magnitude.
关键词：Organic semiconductor;OTFTs;polymer;F8T2;avidin;biotin;biosensor