[9a-C309-1~13] 12.7 Biomedical Engineering and Biochips

10:45 AM - 11:00 AM JST(1:45 AM - 2:00 AM UTC)

[9a-C309-7] Studying of Light-Addressable Potentiometric Sensors (LAPS)using Organic Semiconductors

〇Shinji Kimoto¹, Yudai Hemmi², Ami Ichikawa², Hiroyuki Matsui², Yuanyuan GUO³, Fumihiko Hirose⁴, Carl Fredrik Werner¹ (1.Electronics, KIT, 2.ROEL, Yamagata U., 3.FRIS, Tohoku U., 4.Sci., Yamagata U.)

Keywords:

chemical imaging sensor,Light-addressable potentiometric sensor,Organic semiconductor

LAPS is a chemical imaging sensor that utilizes the field effect of semiconductors and can measure local analyte concentrations at specific locations on the sensor surface. While conventional LAPS primarily used inorganic semiconductors such as silicon, these materials are hard and brittle, posing challenges regarding biocompatibility. Organic semiconductors, on the other hand, are flexible materials that conform well to curved surfaces and exhibit high biocompatibility. In this study, we demonstrate for the first time the successful pH responsiveness of an organic LAPS based on PCE12:N2200:SEBS with an aluminium oxide pH-sensitive layer.