Development of screening-printed sweat sensor using lipid/polymer membranes

2021 Fiscal Year Final Research Report

• Project/Area Number: 20K22510
• Research Category: Grant-in-Aid for Research Activity Start-up
• Allocation Type: Multi-year Fund
• Review Section: 0403:Biomedical engineering and related fields
• Research Institution: Fukuoka Institute of Technology
• Principal Investigator: WU XIAO 福岡工業大学, 工学部, 助教 (20825351)
• Project Period (FY): 2020-09-11 – 2022-03-31
• Keywords: 脂質高分子膜 / スクリーン印刷 / 塩化ナトリウム / 乳酸 / グルコース

Outline of Final Research Achievements

A screen-printed electrode using lipid/polymer membrane was prototyped by printing a carbon electrode on a flexible polyester membrane and dropping the lipid/polymer liquid on the electrode surface. It is suggested that some sweat components may be quantified by applying the lipid/polymer membranes used in the conventional liquid-membrane type taste sensor (saltiness sensor, sourness sensor, sweetness sensor) to the screen-printed electrodes. As a result, the saltiness sensor and the sourness sensor showed high selectivity for NaCl and lactic acid in the same concentration range as sweat, but the sweetness sensor was insufficient in sensitivity and selectivity for the glucose concentration in the sweat component.

Free Research Field

電気電子工学

Academic Significance and Societal Importance of the Research Achievements

本研究は、これまで行ってきた脂質膜高分子膜の研究成果を応用・発展させることで、汗に含まれる電解質、乳酸、グルコースを対象とした新規印刷型センシングデバイスの開発を目指すものである。従来の液膜型脂質膜電極より、小型、低コスト、軽量でフレキシブルなどのポテンシャルを有した脂質膜センシングの重要な基盤技術としての試みである。