Inventors

Chil Seong Ah, Kim Ansoon, Park Seon Hee, Gun Yong Sung, Baek In Bok, Park Chan Woo, Chang-Geun Ahn, Yang Jong-Heon, Tae-Youb Kim, Jang Moon Gyu, Yang Hyekyoung, Yu Han Young

Application No.

13062146 (2008.11.20)

Publication No.

20110165557 (2011.07.07)

Registration No.

8529750 (2013.09.10)

Country

UNITED STATES

Project Code

08MC2500, Ubiquitous Health Monitoring Module and System Development, Park Seon Hee

Abstract

Provided are an apparatus and method for detecting biomolecules. The apparatus includes a FET having a substrate, a source electrode, a drain electrode, a channel region between the source and drain electrodes, and probe molecules fixed to the channel region, wherein the source and drain electrodes are separated on the substrate, a microfluid supplier selectively supplying one of a reference buffer solution of low ionic concentration and a reaction solution of high ionic concentration containing target molecules, to the channel region of the FET to which the probe molecules are fixed, and a biomolecule detector detecting the target molecules by measuring a first current value of the channel region of the FET, and a second current value of the channel region of the FET to which the target molecules and the probe molecules that bind to each other in the reaction solution of high ionic concentration are fixed.

KSP Keywords

Buffer solution, Drain electrode, Ionic concentration, Source and drain, probe molecules, reference buffer