Integrated Biomonitoring Sensing with Wearable Asymmetric Supercapacitors Based on Ti3C2 MXene and 1T‐Phase WS2 Nanosheets

Research on wearable sensing technologies has been gaining considerable attention in the development of portable bio‐monitoring devices for personal health. However, traditional energy storage systems with defined size and shape have inherent limitations in satisfying the performance requirements fo...

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Bibliographic Details
Published in:Advanced functional materials 2020-09, Vol.30 (39), p.n/a
Main Authors: Vaghasiya, Jayraj V., Mayorga‐Martinez, Carmen C., Vyskočil, Jan, Sofer, Zdeněk, Pumera, Martin
Format: Article
Language:English
Subjects:
2D materials
Asymmetry
Biomonitoring
Cloth
Configuration management
Electrodes
Energy storage
Flexible components
flexible supercapacitors
health monitoring systems
Integrated circuits
Materials science
MXenes
Nanosheets
Portable equipment
Storage systems
Structural integrity
Substrates
Supercapacitors
textile power sources
Textiles
Two dimensional materials
wearable bioelectronics
Wearable technology
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Summary:Research on wearable sensing technologies has been gaining considerable attention in the development of portable bio‐monitoring devices for personal health. However, traditional energy storage systems with defined size and shape have inherent limitations in satisfying the performance requirements for flexible electronics. To overcome this constraint, three different configurations of flexible asymmetric supercapacitor (FASC) are fabricated on polyester/cellulose blend (PCB) cloth substrate using Ti3C2 nanosheet (NS) and 1T WS2 NS as electrodes, and aqueous pluronic gel as an electrolyte. Benefiting from the 2D material electrodes, the interdigitated FASC configuration exhibits excellent performance, flexibility, cyclic stability, wearability and can be configured into multiple units and shapes, which far exceed that exhibited by the textile‐based FASC. Furthermore, the arbitrary (“AFN”) and sandwich (“FLOWER”) configurations Ti3C2 NS/1T WS2 NS FASC can be assembled directly on a PCB cloth substrate, thereby offering good structural integrity coupled with ease of assembly into integrated circuits of different shapes. More specifically, a lightweight, flexible, and wearable bio‐monitoring system is developed by integrating force sensing device with interdigitated FASC, which can be used to monitor the physical status of human body during various activities. A potential application of this system in healthcare is successfully demonstrated and discussed. An integrated bio‐monitoring system with a Ti3C2 NS/1T WS2 NS based flexible supercapacitor and force sensor device is developed. The proof of concept for practical application of this system is demonstrated by monitoring live artery pulse and feet alignment analysis on a human subject.
ISSN:1616-301X
1616-3028
DOI:10.1002/adfm.202003673