NAIST 奈良先端科学技術大学院大学 物質創成科学領域 ~光ナノサイエンス~

光機能素子科学研究室のNattakarn Wuthibenjaphonchaiさん(博士後期課程2年)がIEEE(米国電気電子工学会) BioCAS 2018 Student Travel Grants(Charles Desoer Grant)を獲得

2018年10月17~19日にアメリカ、クリーブランドにて開催されたBioCAS 2018で、光機能素子科学研究室のNattakarn Wuthibenjaphonchaiさん(博士後期課程2年)がBioCAS 2018 Student Travel Grants(Charles Desoer Grant)を獲得しました。本会議には170名の学生が参加していましたが、21名の学生がStudent Travel Grantsを獲得、その中でも最優秀の学生2名にCharles Desoer Grant (1,300 USD)が贈られました。

 

【写真左からNattakarn Wuthibenjaphonchaiさん、太田淳教授】

Battery-Free Sticker-Like Device for Health Monitoring Operated by Optical Power Transfer

Nattakarn Wuthibenjaphonchai, Makito Haruta, Toshihiko Noda, Kiyotaka Sasagawa, Takashi Tokuda, Mohamad Sawan, Sandro Carrara, Jun Ohta

To be considered for a Charles Desoer Grant is a great honor and privilege. Receiving this award greatly motivates and give me a good chance to develop my research. I would like to sincerely thank you all Professors in Photonic device science laboratory, Prof. Sandro Carrara from Switzerland and Prof. Mohamad Sawan from Canada. I deeply appreciate to work and train under their advice. Without their support, I could not have made it.

This work presents the concept of a battery-free, sticker-like, device for a non-invasive health-monitoring sensor. The device consists of two functional blocks: an optical power-transfer block and an amperometric measurement block. The former accumulates power from a series-connected photovoltaic cell in a capacitor and intermittently supplies the power to the amperometric measurement circuit. This circuit is driven by powering pulses and displays the amperometric current as the durations of the light pulses from a light-emitting diode. The function of the circuit was successfully demonstrated through simulations, in which the equivalent circuit of an electrochemical glucose sensor was used as an example. The simulation results showed that the proposed device would work as expected for a variety of glucose concentrations at an oxidation voltage of 0.8 V.

 

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