MXene, protein, and KCl-assisted ionic conductive hydrogels with excellent anti-freezing capabilities, self-adhesive, ultra-stretchability, and remarkable mechanical properties for a high-performance wearable flexible sensor

RSC Advances, Journal Year: 2024, Volume and Issue: 14(30), P. 21786 - 21798

Published: Jan. 1, 2024

Developing a hydrogel with switchable features and freeze tolerance is remarkably significant for designing flexible electronics to adjust various application needs. Herein, MXenes, AFPs (antifreeze proteins), potassium chloride (KCl) were introduced polyacrylamide (PAM) polymer network design an anti-freezing hydrogel. The ionic hydrogels are characterized by excellent conductivity, presenting adjustable properties of remarkable mechanical strength self-adhesion meet individualized demands. capability KCl inhibit ice crystals gives anti-icing under low-temperature atmosphere. PAM/MXene15/AFP30/KCl15 demonstrated negligible hysteresis behavior, quick electromechanical response (0.10 s), sensitivity (gauge factor (GF) = 13.1 within the strain range 1200-2000%). resulting could be immobilized on animal or human skin detect different body movements physiological motions, offering reproducibility precise accuracy as primary advantages. approach developing materials tunable features, along inorganic salt fish-inspired freeze-tolerance method, offers new prospect wearable gadgets.

Language: Английский

压致变色材料：研究与应用进展

Scientia Sinica Chimica, Journal Year: 2024, Volume and Issue: 54(9), P. 1549 - 1575

Published: June 28, 2024