Stretchable, self-healable and anti-freezing conductive hydrogel based on double network for strain sensors and arrays

Conductive polymer based hydrogels and their application in wearable sensors: a review

“…[77][78][79] Then, the CPs are introduced into the hydrogel matrix to initialize the electron transfer pathways by absorbing the CP monomers into the hydrophilic hydrogel matrix, followed by the in situ redox polymerization to create a conductive network of CPHs. [80][81][82] (2) Constructing a conductive network and then gelling (Fig. 2b).…”

Self-healable and freeze-resistant polyelectrolyte based on an EG anchor chain and dual dynamic reversible interaction as highly sensitive ionic skin

“…and dynamic covalent bonds (Diels-Alder reactions, disulfide bonds, borate bonds, etc.). [34][35][36][37] Hence, a series of self-healing hydrogels based on dynamic chemical bonding has been developed and widely used in ionic skins. Su et al 38 reported the preparation of a self-healing conductive hydrogel with multiple non-covalent bonding systems (hydrogen bonding, hydrophobic interaction, and electrostatic attraction) and applied it in wearable sensors with ultra-wide stain sensing behavior (0-1500%).…”

3D Print Polyaniline/Gelatin Hydrogels as Wearable Multifunctional Sensors

“…[5][6][7] Among these sensors, pressure sensors are very important and widely studied because they sense physical and physiological signals from the human body, such as knee and finger flexion, and detect and quantify various stimuli in the environment, such as strain, pressure and temperature. [8][9][10][11] Therefore, the prospect of sensors in electronic skin and other fields has attracted much attention. Wearable real-time selfsensing sensors have good stretch resistance, such as Hu et al [12] proposed a highly stretchable sensor, inspired by human muscles, that can convert environmental stimuli into high-performance electrical signals.…”

“…A wide variety of wearable haptic sensors have been developed in the past [5–7] . Among these sensors, pressure sensors are very important and widely studied because they sense physical and physiological signals from the human body, such as knee and finger flexion, and detect and quantify various stimuli in the environment, such as strain, pressure and temperature [8–11] . Therefore, the prospect of sensors in electronic skin and other fields has attracted much attention.…”