Development of a Flexible Organic Transistor-Based Sensor for Real-Time Monitoring of Lactate Levels
【Supercategory：7. DESCENTE SPORTS SCIENCE Subcategory：7.39 Vol.39】
ABSTRACT
A novel flexible biosensor for the lactate detection based on organic thin-film transistors (OTFTs) is demonstrated. Because lactate is well known as a biomarker for assessing physical performance of human body, flexible (and wearable) lactate sensors could contribute the monitoring of human health conditions. The designed OTFT for the flexible biosensor device can be fabricated on a plastic substrate, and itis operated under low-voltage. The flexible OTFT shows stable electric-characteristics. In addition, the fabricated OTFT possesses an extended-gate electrode modified with layers of a lactate oxidase, a horseradish peroxidase, and an osmium-redox polymer for lactate detection in aqueous media, meaning that the continuous measurement of lactate levels has been successfully demonstrated. We believe that insight obtained opens up opportunities for applying OTFTs in wearable and flexible biosensor devices.
DESCENTE SPORTS SCIENCE Vol.39/THE DESCENTE AND ISHIMOTO MEMORIAL FOUNDATION FOR THE PROMOTION SPORTS SCIENCE
A novel flexible biosensor for the lactate detection based on organic thin-film transistors (OTFTs) is demonstrated. Because lactate is well known as a biomarker for assessing physical performance of human body, flexible (and wearable) lactate sensors could contribute the monitoring of human health conditions. The designed OTFT for the flexible biosensor device can be fabricated on a plastic substrate, and itis operated under low-voltage. The flexible OTFT shows stable electric-characteristics. In addition, the fabricated OTFT possesses an extended-gate electrode modified with layers of a lactate oxidase, a horseradish peroxidase, and an osmium-redox polymer for lactate detection in aqueous media, meaning that the continuous measurement of lactate levels has been successfully demonstrated. We believe that insight obtained opens up opportunities for applying OTFTs in wearable and flexible biosensor devices.
DESCENTE SPORTS SCIENCE Vol.39/THE DESCENTE AND ISHIMOTO MEMORIAL FOUNDATION FOR THE PROMOTION SPORTS SCIENCE
| Researcher | Tsuyoshi Minami |
|---|---|
| University or institution | Institute of Industrial Science, The University of Tokyo |
Keywords
Organic Transistor, Biosensor, Lactic Acid, Flexible Sensor, Real-time Monitoring