Zhou, Jian, Zhuo, Fengling, Long, Xinxin, Liu, Ying, Lu, Haibao, Luo, Jikui, Chen, Lei, Dong, Shurong, Fu, Yong Qing and Duan, Huigao (2022) Bio-inspired, Super-stretchable and Self-adhesive Hybrid Hydrogel with SC-PDA/GO-Ca2+/PAM Framework for High Precision Wearable Sensors. Chemical Engineering Journal, 447. p. 137259. ISSN 1385-8947
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Abstract
Flexible sensors which are highly stretchable, sensitive, and self-adhesive are critically required for wearable electronics, personalized healthcare monitoring and electronic skins. Conductive hydrogel-based sensors hold great promises for this purpose. However, it remains a critical challenge to integrate all the critical functions (e.g., remarkable stretchability, high sensitivity, and self-adhesiveness) into one hydrogel. Here, we propose a bio-inspired hybrid hydrogel framework with a hierarchical configuration that incorporates sodium casein, polydopamine, calcium chloride, and graphene oxide into a polyacrylamide hydrogel. Multiple interpenetrating network architectures and their strong interactions provide superior stretchability of 10,300%, high strain sensitivity with a gauge factor of 13.45 over a broad strain range, robust adhesiveness, fast responsiveness, and excellent reproducibility. This hydrogel-based wearable sensor demonstrates outstanding sensing performance in detecting, quantifying, and remotely monitoring human motions through integration into a cloud platform. A durable glove is further developed using the hybrid hydrogel for wirelessly controlling synchronized motions of a manipulator and accurately recognizing hand gestures. This hybrid hydrogel has shown wide-range applications in fields including wearable electronics, human–machine interfaces, and electronic skins.
| Item Type: | Article |
|---|---|
| Additional Information: | Funding information: This work was supported by the NSFC (No.52075162), The Innovation Leading Program of New and High-tech Industry of Hunan Province(2020GK2015), The Joint Fund Project of the Ministry of Education, The Excellent Youth Fund of Hunan Province (2021JJ20018), the Key Research & Development Program of Guangdong Province (2020B0101040002), the Natural Science Foundation of Changsha (kq2007026), The NSFC-Zhejiang Joint Fund for the Integration of Industrialization and information(No.U20A20172,U1909212), and the Engineering Physics and Science Research Council of UK (EPSRC EP/P018998/1) and International Exchange Grant (IEC/NSFC/201078) through Royal Society and the NSFC. |
| Uncontrolled Keywords: | wearable sensor, self-adhesive, super-stretchable, hydrogel, cloud platform monitoring |
| Subjects: | H800 Chemical, Process and Energy Engineering |
| Department: | Faculties > Engineering and Environment > Mathematics, Physics and Electrical Engineering |
| Depositing User: | Rachel Branson |
| Date Deposited: | 14 Jun 2022 13:16 |
| Last Modified: | 02 Jun 2023 08:00 |
| URI: | https://nrl.northumbria.ac.uk/id/eprint/49306 |
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