[14p-F204-1~15] 12.7 Biomedical Engineering and Biochips

[14p-F204-8] Detection of Organic Acid Molecules by using a biosensor based on an Extended-Gate Type Organic Transistor

Mayu Uematsu¹, Yusuke Ichimura¹, Shuhei Harada², Kazuhiko Tsuchiya³, Hiroyuki Matsui^3,4, Daisuke Kumaki^3,4, 〇Hiroyuki Furusawa⁵, Shizuo Tokito^1,3,4 (1.Faculty of Eng., Yamagata Univ., 2.Yonezawa Kojokan High Sch., 3.ROEL, Yamagata Univ., 4.Grad. Sch. of Org. Mat. Sci., Yamagata Univ., 5.Grad. Sch. of Sci. and Eng., Yamagata Univ.)

Keywords:organic Field Effect Transistor, organic Acid Molecule, chelate

An extended-gate type organic transistor was applied to a sensing device as a biosensor for organic acid molecules such as citric acid and malic acid. When citric acid was injected to the sensor surface with chelate molecules, shifts of transistor characteristics were observed. Thus, we can detect the organic acid using organic transistor.