Dong, Jiancheng;
Tang, Xinwei;
Peng, Yidong;
Fan, Chonghui;
Li, Le;
Zhang, Chao;
Lai, Feili;
... Liu, Tianxi; + view all
(2023)
Highly Permeable and Ultrastretchable E-Textiles with EGaIn-Superlyophilicity for On-Skin Health Monitoring, Joule Heating, and Electromagnetic Shielding.
Nano Energy
, Article 108194. 10.1016/j.nanoen.2023.108194.
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Abstract
The prosperity of wearable and healthcare electronics yearns for the compact integration of multi-functionalities including detectability for various electrophysiological signals, thermal/moisture management, and electromagnetic wave protection. Herein, highly breathable and ultrastretchable styrene-ethylene-butylene-styrene (SEBS)-Ag-liquid metal (SSLM) nonwoven electronic textiles are fabricated as versatile on-skin bioelectrodes for accurate health monitoring, Joule heating, and electromagnetic interface (EMI) shielding. Taking advantage of the reactive alloying between liquid metal and magnetron sputtered silver nanoparticles, ultra-conductive eutectic gallium-indium (EGaIn) is intimately and uniformly encapsulated on superlyophilic SEBS microfibers after activation via monolithic pre-stretching. Benefiting from the highly deformable, extremely stable, and 3D interconnected conducting networks, the nonwoven E-textiles demonstrate exceptional EMI shielding effectiveness (75.3 dB at frequencies of 8.2–12.8 GHz, and still maintain 31.7 dB at 300% elongation), and efficient Joule heating performance also under large-scale deformation (120%). Moreover, the breathable SSLM E-textiles used as skin-attachable bioelectrodes even manifest prominent monitoring performance for biophysical signals (breath, phonation, and joint bending), surface electromyography signals (sEMG), and electroencephalogram signals (EEG). Therefore, the superlyophilicity and superior performance of the liquid metal E-textiles enable a wide range of applications in next-generation skin electronics and protective textiles.
| Type: | Article |
|---|---|
| Title: | Highly Permeable and Ultrastretchable E-Textiles with EGaIn-Superlyophilicity for On-Skin Health Monitoring, Joule Heating, and Electromagnetic Shielding |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1016/j.nanoen.2023.108194 |
| Publisher version: | https://doi.org/10.1016/j.nanoen.2023.108194 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | Electronic textiles, on-skin bioelectrodes, liquid metals, human health regulation, Joule heaters, electromagnetic interface shielding |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Chemical Engineering |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10163094 |
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