Dong, J;
Peng, Y;
Nie, X;
Li, L;
Zhang, C;
Lai, F;
He, G;
... Liu, T; + view all
(2022)
Hierarchically Designed Super-Elastic Metafabric for Thermal-Wet Comfortable and Antibacterial Epidermal Electrode.
Advanced Functional Materials
, 32
(48)
, Article 2209762. 10.1002/adfm.202209762.
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Abstract
On-skin electronic systems represent a burgeoning technology that develops wearable devices capable of adapting to the dynamic surfaces of the human body. Present film-based electronics are constrained to single-layered constructions on impermeable substrates that severely inhibit their wearing comfort and multi-functionality. Herein, a thermal-wet comfortable and antibacterial epidermal electrode is hierarchically designed on an ultra-stretchable metafabric. Via the layer-by-layer assembly of trilayered elastomeric fibers with multi-scale sizes and varied compositions, porosity and wettability asymmetries are established across the nonwoven fabric, rendering it with unidirectional liquid conduction and sweat self-pumping performance. The successful printing of stretchable liquid-metal (EGaIn) circuits on ZnO NPs anchored microfibers simultaneously equips the trilayered metafabric with robust antibacterial capability, low-watt heating ability, and high-fidelity detectability for surface electromyography signals of various physical activities. Moreover, the incorporation of thermochromic microcapsules in the outmost fibers also enables the fabric Joule heater with visual indicating ability via reversible color-switching. Thus, this hierarchically engineered epidermal electrode with thermal-wet comfort and antibacterial ability holds great promise in daily applicable healthcare and sports monitoring electronics.
| Type: | Article |
|---|---|
| Title: | Hierarchically Designed Super-Elastic Metafabric for Thermal-Wet Comfortable and Antibacterial Epidermal Electrode |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1002/adfm.202209762 |
| Publisher version: | https://doi.org/10.1002/adfm.202209762 |
| 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: | antibacterial, elastic metafabrics, epidermal electrodes, liquid metals, moisture wicking |
| UCL classification: | 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 UCL > Provost and Vice Provost Offices > UCL BEAMS UCL |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10157847 |
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