TY - JOUR
T1 - A Structural Gel Composite Enabled Robust Underwater Mechanosensing Strategy with High Sensitivity
AU - Wang, Zibi
AU - Zhou, Honghao
AU - Liu, Dong
AU - Chen, Sherry
AU - Wang, Ding
AU - Dai, Sheng
AU - Chen, Fei
AU - Xu, Ben Bin
N1 - 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.
PY - 2022/6/17
Y1 - 2022/6/17
N2 - 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.
AB - 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.
KW - Interface engineering
KW - Gel composite
KW - Wearable electronics
KW - Mechano-sensing
KW - Tactical sensing
UR - http://www.scopus.com/inward/record.url?scp=85126430465&partnerID=8YFLogxK
U2 - 10.1002/adfm.202201396
DO - 10.1002/adfm.202201396
M3 - Article
SN - 1616-301X
VL - 32
JO - Advanced Functional Materials
JF - Advanced Functional Materials
IS - 25
M1 - 2201396
ER -