Fiber-based stretchable electronics with feasibility of weaving into textiles and advantages of light-weight, long-term stability, conformability and easy integration are highly desirable for wearable electronics to realize personalized medicine, artificial intelligence and human health monitoring. Herein, a fiber strain sensor is developed based on the Ti₃C₂T_x MXene wrapped by poly(vinylidenefluoride-co-trifluoroethylene) (P(VDF-TrFE)) polymer nanofibers prepared via electrostatic spinning. Owing to the good conductivity of Ti₃C₂T_x and unique 3D reticular structure with wave shape, the resistance of Ti₃C₂T_x@P(VDF-TrFE) polymer nanofibers changes under external force, thus providing remarkable strain inducted sensing performance. As-fabricated sensor exhibits high gauge factor (GF) of 108.8 in range of 45–66% strain, rapid response of 19 ms, and outstanding durability over 1600 stretching/releasing cycles. The strain sensor is able to monitor vigorous human motions (finger or wrist bending) and subtle physiological signals (blinking, pulse or voice recognition) in real-time. Moreover, a data glove is designed to connect different gestures and expressions to form an intelligent gesture-expression control system, further confirming the practicability of our Ti₃C₂T_x@P(VDF-TrFE) strain sensors in multifunctional wearable electronic devices.

基于纤维的可拉伸电子产品具有编织成纺织品的可行性以及重量轻、长期稳定性、一致性和易于集成的优点，是可穿戴电子产品实现个性化医疗、人工智能和人体健康监测的理想选择。在本文中，光纤应变传感器是基于Ti的开发₃ c ^ ₂ Ť _X MXene包裹由聚（偏二共经由静电纺丝制备-trifluoroethylene）（P（VDF-TrFE）的重复）聚合物的纳米纤维。由于 Ti ₃ C ₂ T _x良好的导电性和独特的波浪形 3D 网状结构，Ti ₃ C ₂的电阻T _x @P(VDF-TrFE) 聚合物纳米纤维在外力作用下会发生变化，从而提供显着的应变感应传感性能。制造好的传感器在 45-66% 应变范围内表现出 108.8 的高应变系数 (GF)、19 毫秒的快速响应以及超过 1600 次拉伸/释放循环的出色耐用性。应变传感器能够实时监测剧烈的人体运动（手指或手腕弯曲）和细微的生理信号（眨眼、脉搏或语音识别）。此外，数据手套设计用于连接不同的手势和表情，形成智能的手势表情控制系统，进一步证实了我们的 Ti ₃ C ₂ T _x的实用性多功能可穿戴电子设备中的@P(VDF-TrFE) 应变传感器。