Conductive\nOrganohydrogels with Ultrastretchability,\nAntifreezing, Self-Healing, and Adhesive Properties for Motion Detection\nand Signal Transmission

Abstract

Conductive hydrogels\nhad demonstrated significant prospect in the\nfield of wearable devices. However, hydrogels suffer from a huge limitation of freezing when the temperature\nfalls below zero. Here, a novel conductive organohydrogel was developed\nby introducing polyelectrolytes and glycerol into hydrogels. The gel\nexhibited excellent elongation, self-healing, and self-adhesive performance\nfor various materials. Moreover, the gel could withstand a low temperature\nof −20 °C for 24 h without freezing and still maintain\ngood conductivity and self-healing properties. As a result, the sample\ncould be applied for motion detection and signal transmission. For\nexample, it can respond to finger movements and transmit network signals\nlike network cables. Therefore, it was envisioned that the effective\ndesign strategy for conductive organohydrogels with antifreezing,\ntoughness, self-healing, and self-adhesive properties would provide\nwide applications of flexible wearable devices.