In recent years, the prevalence of cervical spondylosis has been increasing, which is associated with unhealthy posture in daily life, flexible pressure sensors are beneficial in preventing cervical spine disorders. This work is dedicated to developing a flexible, high‐performance, and breathable device to monitor the health of the neck. Here, a flexible pressure sensor with a “sandwich” structure is presented, which incorporates patterned xylon fabric as the substrate and MXene as the sensitive layer. Furthermore, the application of silver nanowires (AgNWs) as the electrode material improves the piezoresistive performance. Combined with an internal elastic encapsulation method (IEEM), the sensor exhibits high sensitivity (1417.9 kPa−1 under pressure below 100 kPa) and a fast response time (30.77 ms). Compared with traditional flexible pressure sensors, the breathability of devices with an all‐fiber structure is nearly seven times higher, which better satisfies the monitoring requirements of long‐term wear. Finally, a wireless system is established by integrating a Bluetooth module and a terminal app. It enables monitoring and sensing of various physiological signals of the neck, as well as identification and alerting of long‐term poor posture such as prolonged neck flexion, showing a potential candidate for the applications of the next‐generation wearable device.

中文翻译：

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基于 Xylon 的高灵敏度、透气性柔性压阻式压力传感器

近年来，颈椎病的患病率不断增加，这与日常生活中不健康的姿势有关，柔性压力传感器有利于预防颈椎疾病。这项工作致力于开发一种灵活、高性能、透气的设备来监测颈部健康状况。这里提出了一种具有“三明治”结构的柔性压力传感器，该传感器采用图案化的木质纤维作为基板，并采用 MXene 作为敏感层。此外，应用银纳米线（AgNWs）作为电极材料提高了压阻性能。结合内部弹性封装方法（IEEM），该传感器表现出高灵敏度（1417.9 kPa）−1在低于 100 kPa 的压力下）和快速响应时间（30.77 ms）。与传统柔性压力传感器相比，全纤维结构的器件透气性提高了近七倍，更好地满足了长期佩戴的监测需求。最后，通过集成蓝牙模块和终端应用程序建立无线系统。它能够监测和感知颈部的各种生理信号，以及对颈部长时间屈曲等长期不良姿势的识别和警报，显示出下一代可穿戴设备应用的潜在候选者。