A Body Area Wireless Sensor Network by Stretchable Passive Tags
Journal
Nature Electronics
Date
2019.08.15
Abstract
Body area sensor network (BodyNET) is a promising platform for next-generation healthcare and its
realization requires hybridization of stretchable on-skin sensors and rigid silicon readout circuits. Here
we report a bodyNET where the on-skin part is comprised of chip-free, battery-free and intrinsically
stretchable sensors, which are wirelessly readout by flexible silicon circuits. Importantly, our design
addresses long-standing limitations in mechanical incompatibility between soft on-skin devices and rigid
high-performance silicon electronics through employing wireless hybridization. Our design, which
removes all rigid components from direct contact with human body, offers conformable skin-mimicking
interface. Deliberate detuning of wireless sensors is introduced to allow the tolerance of strain-induced
electronic property change. The BodyNET system can cooperatively analyze multiple critical human
physiological signals, thus providing continuous, simultaneous, accurate and hands-free monitoring to
enable next-generation personalized healthcare system.