Division of Materials Science, NAIST

Ms. Nattakarn Wuthibenjaphonchai of Photonic Device Science Laboratory was awarded a Great Potential Design Award in Idea Contest at VDEC Designer Forum 2019.

Ms. Nattakarn Wuthibenjaphonchai of Photonic Device Science Laboratory was awarded a Great Potential Design Award. The VDEC Designer Forum 2019 was held in Yamagata, Japan on September 27-28, 2019. From 6 students who selected in Idea Contest, 3 students receive the potential design awards.

Wireless Wearable Device for Non-invasive Health Monitoring, Operated by Optical Power Transfer

 

Nattakarn Wuthibenjaphonchai, Makito Haruta, Kiyotaka Sasagawa, Takashi Tokuda, Jun Ohta

I would like to express my special thanks of gratitude to Prof. Ohta and Prof. Tokuda for their kindly guidance and very helpful advice in my research. I would like to extend my sincerely thank you all Professors in Photonic device science laboratory and Ms. Fukuzawa for their constantly support. Receiving this award is a great honor and privilege and it is a great motivation for my research.

This work presents the concept of a battery-free, sticker-like, device for a non-invasive health-monitoring sensor. In this work, we used glucose as an example of health-monitoring sensor. Comparing to a commercial blood-glucose meter, this device has two main advantages which are convenience and less painful device. The device consists of two functional blocks: an optical power-transfer part and a functional part. The device’s operation is simply started by using the illuminator of a smart phone as a power transmitter. The solar cells on the device convert light to electrical power and supply power to the optical power-transfer part. The optical power-transfer part accumulates power and operates the functional part. In the functional part, an amperometric measurement circuit is used to measure a faraday current from the non-invasive glucose sensor. A data-display LED receives the measured current and display the data. This signal can be collected and displayed by the camera in the smart phone.

 

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