Analytical Sciences
Online ISSN : 1348-2246
Print ISSN : 0910-6340
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An Organic Field-effect Transistor with an Extended-gate Electrode Capable of Detecting Human Immunoglobulin A
Tsukuru MINAMIKITsuyoshi MINAMIYui SASAKIRyoji KURITAOsamu NIWAShin-ichi WAKIDAShizuo TOKITO
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2015 Volume 31 Issue 7 Pages 725-728

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Abstract

We herein report on the development of an extended-gate type organic field-effect transistor (OFET)-based immunosensor for the detection of human immunoglobulin A (IgA). The titration results of IgA exhibited shifts in the transfer characteristics of the OFET sensor device with increasing IgA concentration. A linear detection range from 0 to 10 μg/mL was realized with a detection limit of 2.1 μg/mL, indicating that the OFET-based immunosensor can be potentially applied to the monitoring of infectious diseases and psychological stress in daily life.

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© 2015 by The Japan Society for Analytical Chemistry
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