Development of sensing technology with wearable chemical sensors is realizing non-invasive, real-time monitoring healthcare and disease diagnostics. The advanced sensor devices should be compact and portable for use in limited space, easy to wear on human body, and low-cost for personalized healthcare markets. Here, we report a highly sensitive, flexible, and autonomously self-healable pH sensor cable developed by weaving together two carbon fiber thread electrodes coated with mechanically robust self-healing polymers. The pH sensor cable showed excellent electrochemical performances of sensitivity, repeatability, and durability. Spontaneous and autonomous sensor healing efficiency of the pH sensor cable was demonstrated by measuring sensitivity during four cycles of cutting and healing process. The pH sensor cable could measure pH in small volumes of real human fluid samples, including urine, saliva, and sweat, and the results were similar to those of a commercial pH meter. Taken together, successful real-time pH monitoring for human sweat was demonstrated by fabricating a wearable sensing system in which the pH sensor cable was knitted into a headband integrated with wireless electronics.

中文翻译：

---

高度可自我修复且灵活的电缆型pH传感器，用于实时监测人体液体。

利用可穿戴化学传感器的传感技术的发展正在实现无创，实时监控医疗保健和疾病诊断。先进的传感器设备应紧凑，便携，以在有限的空间中使用，易于穿戴在人体上，并且对于个性化医疗市场来说应是低成本的。在这里，我们报告了一种高灵敏度，柔性且可自我修复的pH传感器电缆，该电缆是通过将两个涂有机械坚固自修复聚合物的碳纤维线电极编织在一起而开发的。pH传感器电缆显示出出色的电化学性能，包括灵敏度，可重复性和耐用性。pH传感器电缆的自发性和自主性传感器修复效率通过在切割和修复过程的四个周期内测量灵敏度来证明。pH传感器电缆可以测量少量人体液体样本中的pH，包括尿液，唾液和汗液，其结果与商用pH计相似。综上所述，通过制造可穿戴的传感系统将pH传感器电缆编织到与无线电子设备集成在一起的头带中，证明了成功的实时监测人类汗液的pH值。