Presentation Information
[17a-K403-6]Fabrication of multimodal image sensor for simultaneous measurement of three-dimensional force and pH
〇Mami Suzuki1, Hideo Doi1, Hiromasa Ito1, Tomoko Horio1, Ken Ogasahara2, Satoshi Shizmizu2, Daisuke Akai1, Takeshi Hizawa1, Yong Joon Choi1, Kazuhiro Takahashi1, Toshihiko Noda1, Kazuaki Sawada1 (1.Toyohashi Univ. of Tech., 2.DAIKIN FINETECH, LTD.)
Keywords:
three-dimensional force,Hydrogen ion,potentiometric CMOS array sensor
We fabricated a CMOS-based multimodal image sensor that enables simultaneous measurement of three-dimensional force and pH toward applications in mechanobiology, and verified the sensor function for force and pH response.
After placing a pH7 solution on the sensor, a shear force was applied to the microstructure using a nylon fiber-based needle and an alkaline solution(pH8) was dropped onto the sensor for simultaneous force and pH measurement. As a result, output image for force and pH change were significantly observed at the pixels directly under the structure- and pH-sensitive pixel, successfully achieved the multimodal sensing of force and pH in a solution.
After placing a pH7 solution on the sensor, a shear force was applied to the microstructure using a nylon fiber-based needle and an alkaline solution(pH8) was dropped onto the sensor for simultaneous force and pH measurement. As a result, output image for force and pH change were significantly observed at the pixels directly under the structure- and pH-sensitive pixel, successfully achieved the multimodal sensing of force and pH in a solution.
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