2022 Fiscal Year Annual Research Report
デジタル医療とAR/VRに向けたB5G搭載のファッショナブルなスマートアパレル
Project/Area Number |
22F22765
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Allocation Type | Single-year Grants |
Research Institution | The University of Tokyo |
Principal Investigator |
染谷 隆夫 東京大学, 大学院工学系研究科(工学部), 教授 (90292755)
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Co-Investigator(Kenkyū-buntansha) |
PAPANASTASIOU THEODORA 東京大学, 工学(系)研究科(研究院), 外国人特別研究員
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Project Period (FY) |
2022-11-16 – 2025-03-31
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Keywords | Wearables / Sensors |
Outline of Annual Research Achievements |
After conducting literature survey on electrodes to investigate current issues and challenges and on bioelectricity measurements focusing on electrodermal activity-EDA, experiments on multilayer electrospinning with and without the use of masks for a) developing nanofiber interconnected layers with varying density and tunable patterning and b) creating smoother interfaces with nanofibers density gradient were conducted. Furthermore, investigation of versatile ways to deposit patterned electrodes on highly adhesive patches and Skin Potential study with purchased potentiometer set-up were completed, achieving: a) preliminary measurements for noise and software artifacts assessment, b) protocol establishment and first series of measurements to several individuals, and c) comparison between Au nanomesh and conventional gel electrodes.
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Current Status of Research Progress |
Current Status of Research Progress
3: Progress in research has been slightly delayed.
Reason
Slight delays due to underestimated time needed for trainings and other procedures related to integration to the research and everyday life in the lab. The time required to fix some of the specific axis of the research project was also underestimated. Following readjustment and preliminary tests of Skin Potential and patterned nanofiber layers, current focus is on the Joule effect of nanomesh-based electrodes, with purpose to: a) overcome the interface issues between electrodes-wiring, soft-rigid parts, by using direct and localized bonding by electrodes power-induced Joule heating, and b) use tunable heating for wearable devices by versatile patterned electrodes Currently in the process of selecting the most suitable electrical set-up equipment.
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Strategy for Future Research Activity |
Localized bonding by Joule heating to investigate bonding between different types of nanofiber layers and substrates and to characterize physical properties. For Skin Potential, fabrication of electrodes with interconnected patterned layers, characterization of skin adhesion, electrical properties stability, and simultaneous measurement and comparison with conventional electrodes. Furthermore, exploration on the efficient attachment-detachment from skin, utilization of patterned electrodes to measure other skin electrical properties (multi-modal monitoring of EDA), and integration of the afore mentioned electrodes in textiles and test the ambulatory and long-term measurement of EDA to be conducted.
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