[18p-C31-1~19] 12.7 Biomedical Engineering and Biochips

4:00 PM - 4:15 PM JST(7:00 AM - 7:15 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[18p-C31-11] Validation of Long-Term Monitoring of Ions in Plants Using Ion Image Sensors

〇Yusuke Matsushita¹, Taichi Yoshida¹, Naoki Sakaguchi¹, Kotaro Takayama¹, Yong-Joon Choi¹, Kazuhiro Takahashi¹, Kazuaki Sawada¹, Toshihiko Noda¹ (1.Toyohashi Univ. of Tech.)

Keywords:

Ion Image Sensor,Plant Insertable Sensor,Long-term measurement

Monitoring of H⁺ distribution in tomatoes during 30 days of cultivation was conducted using a plant insertion H⁺ image sensor. To simulate the actual growing environment, plants were managed with lighting and pH regulators to guide pH changes. The output (pH) response was obtained locally at the timing of irrigation, and continuous pH information was successfully obtained in the vascular part. The decrease in pH sensitivity before and after the measurement was not significant at 8.3 %, demonstrating the possibility of long-term cultivation monitoring using this sensor, including the current measurement system.