Flexible, Programable Sensing System with poly(AAm-HEMA-SA) for Human Motion Detection
Chenggui Yao, Weiwei Zhao, Li Liu, Qimin Liu and Junfeng Li
1 School of Mechanical and Electronic Engineering, School of Materials Science and Engineering, School of Civil Engineering and Architecture, Wuhan University of Technology, Wuhan, 430070, China
2 Birmingham Centre of Energy Storage (BCES) and School of Chemistry Engineering, University of Birmingham, Birmingham, B15 2TT, United Kingdom
Abstract
Conductive hydrogels are powerful material candidates for artificial skin and muscle, flexible and implantable bioelectronics, and tissue engineering. However, the preparation of highly conductive hydrogels without sacrificing their mechanical and electrical properties remains challenging. Herein, composites hydrogels (CAHSx) were prepared by in-situ polymerization with carbon nanotube (CNT) as conductive filler and poly(3,4-ethylenedioxythiophene)-poly(styrene sulfonate) (PEDOT:PSS) as the conductive liquid uniformly dispersed in AAm-HEMA-SA (sodium alginate) hydrogel system. The elongation at break of CAHS6 (0.6 wt% CNT) reached 550%, which was much higher than pure PEDOT:PSS hydrogel. The developed hydrogel can withstand 6000 cycles of cyclic loading at 30% tensile strain without crack propagation. Practically, the conductive hydrogel was employed as a flexible strain sensor with excellent sensitivity, good durability and repeatability, which meets the requirements of human joint motion detection. Additionally, our composites conductive hydrogels can also be synthesized by direct ink writing (DIW) method to enrich the application range.
Publication details
Received: 29 Aug 2022
Revised: 21 Nov 2022
Accepted: 10 Feb 2023
Published online: 11 Feb 2023
Article type:
Research Paper
DOI:
10.30919/esmm5f818
Volume:
20
Article :
818
Citation:
ES Materials & Manufacturing, 2023, 20, 818
Permissions:
Copyright
Number of downloads:
4211
Citation Information:
20
Description:
Synthesis of tough PEDOT:PSS/CNT hydrogel by in-situ polymerization and 3D printing for human motion....
Synthesis of tough PEDOT:PSS/CNT hydrogel by in-situ polymerization and 3D printing for human motion detection
Supplementary Information:
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