MXene-based composite double-network multifunctional hydrogels as highly sensitive strain sensors

Abstract

The era of AI has prompted the continuous advancement of research on flexible electronic materials. Flexible sensors not only have good wearable performance, but also have high accuracy in acquiring...

Silver Nanowire/Silver/Poly(dimethylsiloxane) as Strain Sensors for Motion Monitoring

“…Conductive fillers conclude metal materials (nanoparticles, − nanowires, ,− etc , carbon nanotubes, ,,, graphene oxide, etc. , ), new two-dimension materials (MXene), ,− and conductive polymers. − …”

A κ-Carrageenan-Containing Organohydrogel with Adjustable Transmittance for an Antifreezing, Nondrying, and Solvent-Resistant Strain Sensor

“…In the hydrogel system, the introduction of natural biomacromolecules (e.g., sodium alginate, gelatin, lignin, cellulose, and xanthan gum) can effectively improve mechanical properties because the combination of the incorporated biomacromolecule and other polymer chains provides unique interpenetrating network structures and abundant noncovalent cross-linking points for the hydrogels. − For instance, Luan et al used sodium alginate, acrylamide, and MXene nanosheets to design a highly stretchable double-network composite hydrogel for sensitive strain sensors . Ding et al developed a high-performance and resilient polyacrylamide-alginate double-network hydrogel fiber-based bimodal sensor, which is tough enough to work normally under a large tensile strain (100%) and knife punctures and wrench strikes, demonstrating great potential in wearable electronics and human-machine interfaces .…”

“…10−14 For instance, Luan et al used sodium alginate, acrylamide, and MXene nanosheets to design a highly stretchable double-network composite hydrogel for sensitive strain sensors. 10 Ding et al developed a high-performance and resilient polyacrylamide-alginate doublenetwork hydrogel fiber-based bimodal sensor, which is tough enough to work normally under a large tensile strain (100%) and knife punctures and wrench strikes, demonstrating great potential in wearable electronics and human-machine interfaces. 15 Yu et al fabricated a highly ion-conductive and cellulose nanofibril (CNF)-reinforced organogel with extremetemperature tolerance for flexible humidity sensors.…”

Rational Design for Efficiently Improving the Sensitivity of Ti3C2 MXene-Based Waterborne Polyurethane Composites toward High-Performance Wearable Electronics

“…Considering its intrinsically extraordinary ion diffusion rate, large aspect ratio, and high volumetric capacitance, 2D Ti 3 C 2 MXene has attracted considerable interest in batteries, − supercapacitors, , and catalysts , among those 2D conductive nanomaterials, promoting the sustainable and healthy development of human society. Notably, to deal with higher criteria in personalized health monitoring, MXene has also been employed to fabricate assorted strain sensors with excellent wearability and flexibility. − Nevertheless, owing to the stacking behavior induced by oxygen-containing groups-triggered hydrogen bonding on the MXene surface, and the compatibility between heterogeneous MXene and the polymer matrix, a series of composites utilizing MXene tend to functionally deteriorate under substantive applications, hampering their application in strain sensing. Therefore, the fabrication of high-performance MXene/polymer composite-based strain sensors remains an unsolved challenge.…”