A Structural Gel Composite Enabled Robust Underwater Mechanosensing Strategy with High Sensitivity

Wang, Zibi, Zhou, Honghao, Liu, Dong, Chen, Sherry, Wang, Ding, Dai, Sheng, Chen, Fei and Xu, Bin (2022) A Structural Gel Composite Enabled Robust Underwater Mechanosensing Strategy with High Sensitivity. Advanced Functional Materials, 32 (25). p. 2201396. ISSN 1616-301X

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Official URL: https://doi.org/10.1002/adfm.202201396

Abstract

One of the key challenges in developing gel-based electronics is to achieve robust sensing performance, by overcoming the intrinsic weaknesses such as unwanted swelling induced deformation, signal distortion caused by dehydration, large hysteresis in sensing signal, etc. In this work, we proposed a structural gel composite (SGC) approach by encapsulating the conductive hydrogel/MXene with a lipid gel (Lipogel) layer through an in situ polymerization. The hydrophobic Lipogel coating fulfils the SGC with unique anti-swelling property at an aqueous environment and excellent dehydration feature at an open-air, thus leading to long-term ultra-stability (over 90 days) and durability (over 2000 testing cycles) for underwater mechanosensing applications. As a result, the SGC based mechanoreceptor demonstrates a high and stable sensitivity (GF of 14.5). Moreover, several SGC based conceptual sensors with high sensitivity are developed to unveil their profound potentials in underwater monitoring of human motions, waterproof anti-counterfeiting application, and tactile trajectory tracking.

Item Type: Article
Additional Information: Funding information: This work was supported partially by the China Postdoctoral Science Foundation (2020M683469), the National Natural Science Foundation of China (No. 21803040), Young Talent Support Plan of Xi’an Jiaotong University (China) and the Engineering and Physical Sciences Research Council (EPSRC, UK) grant-EP/N007921.
Uncontrolled Keywords: Gel composite, Wearable electronics, Mechano-sensing, Tactical sensing, Interface engineering
Subjects: H600 Electronic and Electrical Engineering
H800 Chemical, Process and Energy Engineering
H900 Others in Engineering
Department: Faculties > Engineering and Environment > Mechanical and Construction Engineering
Depositing User: Rachel Branson
Date Deposited: 07 Mar 2022 13:39
Last Modified: 20 Jun 2022 09:00
URI: http://nrl.northumbria.ac.uk/id/eprint/48623

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