Hailong Huang, Lu Han, Yangling Wang, Zhongli Yang, Feng Zhu and Min Xu
School of Physics and Materials Science & Shanghai Key Laboratory of Magnetic Resonance, East China Normal University, No. 3663 North Zhongshan Road, Shanghai 200062, China
#These authors contributed equally to this work.
Wearable health monitoring smart systems are considered to be the next generation artificial intelligence devices for real-time tracking down human body motion. However, due to the stress relaxation and viscosity, the existed stretching sensor, especially most ultra-stretching ones, are hard to recover to their original shape after cycles repeatedly stretching, leading to inspection hysteresis and shorter service life. Herein, we reported an intelligent ionic conductive hydrogel (SAMA) as stretching sensor with good mechanical property and controllable thermal-response shape memory property. The obtained hydrogel sensor exhibited outstanding sensitivity to human body motion. Besides, it had a controllable upper critical solution temperature (UCST) from 15 oC to 58 oC through adjusting the concentration of Li+ in the hydrogel. When temperature above UCST, the deformed hydrogel could quickly recover to original shape within 30 seconds and regain sensitive inspection ability. Moreover, the shape memory ability of SAMA hydrogel exhibited a good reuseability at least 50 cycles. The unique stretching hydrogel sensor with controllable thermal-response shape memory could effectively solve the deformation problem of stretching sensor and prolong the service life, demonstrating great potential in the flexible wearable electronics and biologic devices.
Received: 25 Feb 2019
Revised: 29 Mar 2019
Accepted: 03 Apr 2019
Published online: 09 Apr 2019
Article type:
Research Paper
DOI:
10.30919/es8d812
Volume:
9
Page:
60-67
Citation:
Engineered Science, 2020, 9, 60-67
Permissions:
Copyright
Number of downloads:
7045
Citation Information:
23
Description:
An intelligent ionic conductive hydrogel sensor is prepared with outstanding sensitivity to body mot....
An intelligent ionic conductive hydrogel sensor is prepared with outstanding sensitivity to body motion and controllable thermal-response shape memory property.
Supplementary Information:
This article is cited by 23 publications.
This article is cited by 23 publications.
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