The construction of a surface-wrinkled ionic conductive hydrogel with highly stretchable and healable properties for a skin-inspired pressure sensor is desirable yet challenging. Here, a stretching/competitively-coordinating/releasing (SCR) strategy is presented for preparing a self-buckled polyacrylamide/alginate hydrogel (SPAH). Due to its high stretchability, excellent ionic conductivity and programmable wrinkled surfaces, the SPAH can readily work as an ionic conductor in a healable skin-inspired pressure sensor with adaptability and multifunctionality, achieving a wide pressure response range (25 to 20000 Pa), high sensitivity towards strain (3.19 kPa^-1), low detection limit (< 25 Pa) and excellent durability (> 1400 cycles). As a proof-of-concept, a wearable SPAH pressure sensor can adequately monitor finger bending, knee flexion, speaking and breathing, showing high potentials in full-range and sophisticated motion monitoring across the applications involving human-machine interfaces, soft robotics, and artificial intelligence.

对于皮肤启发的压力传感器而言，具有高度可拉伸和可修复特性的表面起皱的离子导电水凝胶的构造是理想的，但是具有挑战性。在此，提出了一种拉伸/竞争性协调/释放（SCR）策略，用于制备自屈曲的聚丙烯酰胺/藻酸盐水凝胶（SPAH）。由于其高拉伸性，出色的离子电导率和可编程的起皱表面，SPAH可以容易地用作具有适应性和多功能性的可愈合皮肤启发型压力传感器中的离子导体，实现宽压力响应范围（25至20000 Pa），高应变敏感性（3.19 kPa ^-1），低检测极限（<25 Pa）和出色的耐用性（> 1400次循环）。作为概念验证，可穿戴式SPAH压力传感器可以充分监测手指的弯曲，膝盖弯曲，说话和呼吸，在涉及人机界面，软机器人和机器人的应用中，在全方位和复杂的运动监控中显示出很高的潜力。人工智能。