Sustainable, self-powered wearable devices that record physiological biosignals are essential in personalized health monitoring but have yet to be achieved. Here a novel, self-powered, MXene-based, 3D-printed, flexible, and integrated wearable system for continuous, real-time physiological biosignals monitoring is proposed, developed, characterized, and validated. The system contains power-efficient triboelectric nanogenerators (TENG), highly sensitive pressure sensors, and multifunctional circuitry. MXene, with distinctive electronegative and conductive characteristics, is the core material and is amenable to 3D-printing. MXene is coupled with a skin-like Styrene-ethylene-butylene-styrene (SEBS) substrate with a positive triboelectric property and high stretchability. This self-powered physiological sensing system exhibited a power output of ~ 816.6 mW m⁻², a sensitivity of ~ 6.03 kPa⁻¹, a low detection limit of ~ 9 Pa, and a fast response time of ~ 80 ms, enabling continuous radial artery pulse (RAP) waveform monitoring without external power. Its continuous, on-demand, fully self-powered RAP monitoring and wireless data and power transmission through near-field communication are demonstrated. This is the first report of a wearable system for continuous and real-time physiological biosignals monitoring fully powered by human motion, signaling exciting potential in the field.

记录生理生物信号的可持续、自供电可穿戴设备对于个性化健康监测至关重要，但尚未实现。在这里，提出、开发、表征和验证了一种新颖的、自供电的、基于 MXene 的、3D 打印的、灵活的、集成的可穿戴系统，用于连续、实时的生理生物信号监测。该系统包含高能效摩擦纳米发电机 (TENG)、高灵敏度压力传感器和多功能电路。MXene 具有独特的电负性和导电特性，是核心材料，适用于 3D 打印。MXene 与具有正摩擦电特性和高拉伸性的皮肤状苯乙烯-乙烯-丁烯-苯乙烯 (SEBS) 基材相结合。^-2、~6.03 kPa ^-1的灵敏度、 ~9 Pa 的低检测限和~80 ms 的快速响应时间，无需外部电源即可实现连续桡动脉脉搏 (RAP) 波形监测。展示了其连续、按需、完全自供电的 RAP 监控以及通过近场通信进行的无线数据和电力传输。这是可穿戴系统的第一份报告，该系统可用于完全由人体运动驱动的连续实时生理生物信号监测，表明该领域具有令人兴奋的潜力。