Issue 45, 2023

Stretchable conductive hydrogels integrated with microelectronic devices for strain sensing

Abstract

Conductive hydrogels have great potential for application in the field of flexible wearable devices due to their excellent stretchability and biocompatibility. In this work, double-network hydrogels were prepared by ion crosslinking and chemical crosslinking, and the resulting hydrogel sensors exhibited excellent performance in terms of stretchability and sensitivity. Specifically, the elongation at break reached 900%, with a fast response time (157 ms), high conductivity (1.47 S m−1), high sensitivity (gauge factor = 5.42, strain of 900%), and high fatigue resistance (1800 cycles of testing). Based on these excellent properties, the hydrogels were assembled into strain sensors, successfully detecting signal changes in human motion states, and recognizing different gestures. Therefore, the prepared hydrogels can be used as soft sensors for motion monitoring, electronic skin, and other fields.

Graphical abstract: Stretchable conductive hydrogels integrated with microelectronic devices for strain sensing

  • This article is part of the themed collection: #MyFirstJMCC

Supplementary files

Article information

Article type
Paper
Submitted
05 Jul 2023
Accepted
21 Aug 2023
First published
25 Aug 2023

J. Mater. Chem. C, 2023,11, 15873-15880

Stretchable conductive hydrogels integrated with microelectronic devices for strain sensing

X. Zhang, J. Zhang, W. Liao, D. Zhang, Y. Dai, C. Wu, J. Wen and W. Zeng, J. Mater. Chem. C, 2023, 11, 15873 DOI: 10.1039/D3TC02359A

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