A self-adhesive and low-temperature-tolerant strain sensor based on organohydrogel for extreme ice and snow motion monitoring

A highly tough, fatigue-resistant, low hysteresis hybrid hydrogel with a hierarchical cross-linked structure for wearable strain sensors

“…The mechanism of adhesion of the PAM–HA–Zn1.0 hydrogel to various substrates is shown in Fig. S9 † 48–50 . Subsequently, the lap-shear tests in the tensile mode were conducted to quantify the adhesive ability of the hydrogels (Fig.…”

“…S9. † [48][49][50] Subsequently, the lap-shear tests in the tensile mode were conducted to quantify the adhesive ability of the hydrogels (Fig. S10a †).…”

Competitive proton-trapping strategy enhanced anti-freezing organohydrogel fibers for high-strain-sensitivity wearable sensors

“…One of the drawbacks of hydrogels is their deactivation under subzero environments due to the freezing of water. [32][33][34] Alternatively, organohydrogels, formed by dispersing immiscible hydrophilic/hydrophobic polymer networks or hydrophilic polymer networks in an organic/water system, have been developed and drawn increasing interest in recent years. 35 This interest is mainly from the fact that the formation of strong hydrogen bonds between the organic agents, the water molecules, and polymer networks brings a unique ice and water evaporation inhibition effect for organohydrogels and thus endows them with a unique anti-freezing and water retention ability in harsh environments, like during cold winters.…”

“…One of the drawbacks of hydrogels is their deactivation under subzero environments due to the freezing of water. 32–34…”

A robust conductive organohydrogel with adhesive and low-hysteresis properties for all-weather human motion and wireless electrocardiogram sensing

“…To address the temperature-sensitivity challenge, the introduction of organic solvents, like glycerol or ethylene glycol, into the polymer network has been explored as a way to prevent hydrogel drying and freezing. [12][13][14] For example, Qian et al 15 proposed poly(acrylamide)/glycerol composite hydrogels, which displayed excellent stability between À80 1C and 80 1C. Another common method is the addition of highly concentrated salts or ionic liquids, and in this regard, Ma et al 16 designed a novel ionic hydrogel with a wide working window (À40 1C to 80 1C).…”