Wei, Hua, Wang, Zhenwu, Zhang, Hua, Huang, Youju, Wang, Zongbao, Zhou, Yang, Xu, Ben Bin, Halila, Sami and Chen, Jing (2021) Ultrastretchable, Highly Transparent, Self-Adhesive, and 3D-Printable Ionic Hydrogels for Multimode Tactical Sensing. Chemistry of Materials, 33 (17). pp. 6731-6742. ISSN 0897-4756
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Abstract
Ionic gel-based electronic devices are essential in future healthcare/biomedical applications, such as advanced diagnostics, therapeutics, physiotherapy, etc. However, considerable efforts have been devoted to integrating ultrahigh stretchability, transparency, self-adhesion, and a low-cost manufacturing process in one material for dealing with a variety of application scenarios in the real world. Here, we describe an ionically conductive hydrogel-based electronic technology by introducing charge-rich polyzwitterions into a natural polysaccharide network. The proposed hydrogel possesses ultrahigh stretchability (975%), unique optical transmittance (96.2%), and universal conformal adhesion. The bionic hydrogel electronic devices possess superior dual force/temperature sensation with high sensitivity. Moreover, we develop dedicated sensor arrays via an additive manufacturing route and demonstrate the feasibility of monitoring physical activity or analyzing the mental state of a human body based on the multichannel signal acquisition of joint bending, pulse, vocal-cord vibration, electroencephalogram, eye movement, body temperature, etc. This all-in-one strategy based on a versatile ionic hydrogel electronic platform is anticipated to open up new tactical sensing applications in smart robotics, human–machine interfaces, and wearable monitoring systems.
| Item Type: | Article |
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| Additional Information: | Funding information: This work was supported by the National Natural Science Foundation of China (51803227, 22007090, 51873222, 52111530128), Natural Science Foundation of Zhejiang Province (LQ19E030006, LQ19E030010), S&T Innovation 2025 Major Special Program of Ningbo (2019B10063, 2020Z091), CAS President’s International Fellowship for Visiting Scientists (2019VBA0016), the Funding for the Scientific Research Start-up of Hangzhou Normal University (4095C5021920452), the Key Research and Development Projects of Anhui Province (202004g01020016, 202104g01020009), and the Engineering and Physical Sciences Research Council (EPSRC) grant-EP/N007921/1. H.W. acknowledges her parents as volunteers for the measurement of physiological signals. J.C. is indebted to Prof. Yen Wei (Tsinghua University) and Prof. Jun Fu (Sun Yat-sen University) for the discussion, and Dr. Changcheng Shi (CAS) and Baoliang Feng (CAS) for the assistance in the EEG experiments. |
| Subjects: | F200 Materials Science |
| Department: | Faculties > Engineering and Environment > Mechanical and Construction Engineering |
| Depositing User: | John Coen |
| Date Deposited: | 26 Jul 2021 11:36 |
| Last Modified: | 03 Aug 2022 03:31 |
| URI: | http://nrl.northumbria.ac.uk/id/eprint/46756 |
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