A conductive polyacrylamide hydrogel enabled by dispersion-enhanced MXene@chitosan assembly for highly stretchable and sensitive wearable skin

Abstract

MXene is recognized as an ideal material for sensitive wearable strain sensor because of its unique advantages in conductivity, hydrophilicity and mechanical properties. However, conventional hydrogels sensors utilizing MXene as...

A bio-inspired tactile nociceptor constructed by integrating wearable sensing paper and a VO2threshold switching memristor

“…4b shows the sensitivity of the E-skin (defined as S = d(DI/I 0 )/dP, where DI is the current change when a certain pressure (P) is applied, and I 0 is the initial current when no pressure is applied). 43,44 The ratio of the current change (DI) to the current at the base pressure (I 0 ) is defined as the current response of the E-skin. Fig.…”

Preparation and properties of CS/P(AM-co-AA) composite hydrogels by frontal polymerization of ternary DES

“… 35 At the same time, there is supramolecular interaction between CS and AM segments. 36 Due to the existence of hydrogen bonds and supramolecular interactions, when the hydrogel is destroyed, the polymer chain can be automatically reestablished, which increases the mechanical properties of the hydrogel.…”

A review related to MXene preparation and its sensor arrays of electronic skins

“…Because MXene is easily oxidised, the heating temperature is generally not very high and is mainly used to improve solvent dissolution. Liu et al 63 used chitosan-induced self-assembly to create a dispersion-enhanced MXene hydrogel (DEMH). Under magnetic stirring, the Ti 3 C 2 T x dispersion was gently added into chitosan aqueous solution.…”