Abstract:
Intelligent sensing technology enables real-time, multi-dimensional monitoring of environmental and human body conditions, providing crucial support for health monitoring and wearable devices, where material selection is pivotal. Polyacrylate-based ionogels, composed of polyacrylate polymers and ionic liquids, have garnered attention due to their excellent biocompatibility, flexibility, and sensitivity. This review details their characteristics in intelligent sensing: temperature-responsive sensors detect minute changes as low as 0.05℃; strain-responsive sensors exhibit fatigue resistance and shape memory for human motion monitoring and temperature alarming; pressure-responsive sensors achieve multi-modal sensing with sensitivity exceeding 300 kPa
−1 and detection limits as low as 1 Pa; humidity-responsive sensors demonstrate good adhesion and transparency with linear responses across a wide humidity range. Polyacrylate-based ionogels have been successfully applied in wearable sensors, underwater sensors and communicators, flexible electronics, and tactile sensing, providing new approaches for intelligent sensing technology development.