A wireless body area sensor network based on stretchable passive tags
Author: ["Simiao Niu","Naoji Matsuhisa","Levent Beker","Jinxing Li","Sihong Wang","Jiechen Wang","Yuanwen Jiang","Xuzhou Yan","Youngjun Yun","William Burnett","Ada S. Y. Poon","Jeffery B.-H. Tok","Xiaodong Chen","Zhenan Bao"]
Publication: Nature Electronics
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Abstract
A body area sensor network (bodyNET) is a collection of networked sensors that can be used to monitor human physiological signals. For its application in next-generation personalized healthcare systems, seamless hybridization of stretchable on-skin sensors and rigid silicon readout circuits is required. Here, we report a bodyNET composed of chip-free and battery-free stretchable on-skin sensor tags that are wirelessly linked to flexible readout circuits attached to textiles. Our design offers a conformal skin-mimicking interface by removing all direct contacts between rigid components and the human body. Therefore, this design addresses the mechanical incompatibility issue between soft on-skin devices and rigid high-performance silicon electronics. Additionally, we introduce an unconventional radiofrequency identification technology where wireless sensors are deliberately detuned to increase the tolerance of strain-induced changes in electronic properties. Finally, we show that our soft bodyNET system can be used to simultaneously and continuously analyse a person’s pulse, breath and body movement. By integrating wireless stretchable on-skin sensor tags and flexible readout circuits attached to textiles using an unconventional radiofrequency identification design, a body area sensor network can be created that can continuously analyse a person’s pulse, breathing and body movement.
Cite this article
Niu, S., Matsuhisa, N., Beker, L. et al. A wireless body area sensor network based on stretchable passive tags. Nat Electron 2, 361–368 (2019). https://doi.org/10.1038/s41928-019-0286-2
