导电复合水凝胶的分类及其在柔性可穿戴设备中的应用

Classification of conductive composite hydrogels andtheir application in flexible wearable devices

近年来,基于水凝胶的导电材料及其作为柔性可穿戴设备的应用引起了人们的广泛关注。柔性可穿戴设备不仅可以采集人体生理信号用于远程健康监测,还在人机界面、软机器人等方面展示出巨大的应用潜力。导电水凝胶所具有的良好导电性、高延伸性、可调柔韧性、生物兼容性和多重刺激响应性等优点使其成为制备柔性可穿戴设备的理想材料。到目前为止,各种导电材料被广泛用于制作导电复合水凝胶。本文根据导电材料对导电复合水凝胶进行分类,包括离子导电水凝胶(基于盐离子、离子液体、聚电解质等导电物质)、电子导电水凝胶(基于导电聚合物基、碳材料、MXene和金属等导电物质)两大类,并介绍了导电水凝胶在人体运动监测、健康监测、人机界面等柔性可穿戴设备中的应用进展。

In recent years,hydrogel-based conductive materials as flexible wearable devices have attracted wide attention.Flexible wearable devices can not only be used to collect physiological signals of human body for remote health monitoring,but also show great application potential in man-machine interface,soft robot and other aspects.Conductive hydrogels with good electrical conductivity,high extensibility,adjustable flexibility,biocompatibility and multiple stimulus response become an ideal material for flexible wearable devices.Up to now,various conductive materials have been widely used to prepare conductive hydrogels.In this paper,conductive composite hydrogels are classified according to conductive materials,including ionic conductive hydrogels(based on salt ions,ionic liquids,polyelectrolytes)and electronic conductive hydrogels(based on conductive polymers,carbon materials,MXene and metal),and then introduce the application progress of conductive hydrogels in flexible wearable devices such as human movement monitoring,health monitoring and human-machine interface.