Digitally-embroidered liquid metal electronic textiles for wearable wireless systems

Rongzhou Lin, Han-Joon Kim, Sippanat Achavananthadith, Ze Xiong, Jason K. W. Lee, Yong Lin Kong () and John S. Ho ()
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Rongzhou Lin: National University of Singapore
Han-Joon Kim: National University of Singapore
Sippanat Achavananthadith: National University of Singapore
Ze Xiong: National University of Singapore
Jason K. W. Lee: National University of Singapore
Yong Lin Kong: University of Utah
John S. Ho: National University of Singapore

Nature Communications, 2022, vol. 13, issue 1, 1-10

Abstract: Abstract Electronic textiles capable of sensing, powering, and communication can be used to non-intrusively monitor human health during daily life. However, achieving these functionalities with clothing is challenging because of limitations in the electronic performance, flexibility and robustness of the underlying materials, which must endure repeated mechanical, thermal and chemical stresses during daily use. Here, we demonstrate electronic textile systems with functionalities in near-field powering and communication created by digital embroidery of liquid metal fibers. Owing to the unique electrical and mechanical properties of the liquid metal fibers, these electronic textiles can conform to body surfaces and establish robust wireless connectivity with nearby wearable or implantable devices, even during strenuous exercise. By transferring optimized electromagnetic patterns onto clothing in this way, we demonstrate a washable electronic shirt that can be wirelessly powered by a smartphone and continuously monitor axillary temperature without interfering with daily activities.

Date: 2022
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DOI: 10.1038/s41467-022-29859-4

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