Helical Fiber Strain Sensors Based on Triboelectric Nanogenerators for Self-Powered Human Respiratory Monitoring,ACS Nano

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Helical Fiber Strain Sensors Based on Triboelectric Nanogenerators for Self-Powered Human Respiratory Monitoring
ACS Nano ( IF 15.8 ) Pub Date : 2022-01-31 , DOI: 10.1021/acsnano.1c09792
Chuan Ning _{1,

2} , Renwei Cheng _{1,

2} , Yang Jiang _{1,

2} , Feifan Sheng _{1,

3} , Jia Yi _{1,

3} , Shen Shen ₁ , Yihan Zhang _{1,

2} , Xiao Peng _{1,

2} , Kai Dong _{1,

2} , Zhong Lin Wang _{1,

2,

4,

5}

Affiliation

Respiration is a major vital sign, which can be used for early illness diagnosis and physiological monitoring. Wearable respiratory sensors present an exciting opportunity to monitor human respiratory behaviors in a real-time, noninvasive, and comfortable way. Among them, fiber-shaped triboelectric nanogenerators (FS-TENGs) are attractive for their comfort and high degree of freedom. However, the single-electrode FS-TENGs cannot respond to their own tensile strains, and the coaxial double-electrode FS-TENGs show low sensitivity to strain due to structural limitations. Here, a type of helical fiber strain sensor (HFSS) is developed, which can respond to tiny tensile strains. In addition, a smart wearable real-time respiratory monitoring system is developed based on the HFSSs, which can measure some key breathing parameters for disease prevention and medical diagnosis. An intelligent alarm can automatically call a preset mobile phone for help in response to respiratory behavior changes. This work provides an effective helical structure for fabricating highly sensitive strain sensors based on FS-TENGs and develops wearable self-powered real-time respiratory monitoring systems.

中文翻译：

基于摩擦纳米发电机的螺旋纤维应变传感器用于自供电人体呼吸监测

呼吸是重要的生命体征，可用于疾病的早期诊断和生理监测。可穿戴呼吸传感器为以实时、无创和舒适的方式监测人类呼吸行为提供了一个令人兴奋的机会。其中，纤维状摩擦纳米发电机（FS-TENGs）因其舒适性和高自由度而具有吸引力。然而，单电极FS-TENGs无法响应自身的拉伸应变，而同轴双电极FS-TENGs由于结构限制对应变的敏感性较低。在这里，开发了一种螺旋纤维应变传感器 (HFSS)，它可以响应微小的拉伸应变。此外，基于HFSSs开发了智能穿戴式实时呼吸监测系统，它可以测量一些关键的呼吸参数，用于疾病预防和医学诊断。智能报警器可根据呼吸行为变化自动呼叫预设手机求助。这项工作为制造基于 FS-TENG 的高灵敏度应变传感器提供了一种有效的螺旋结构，并开发了可穿戴的自供电实时呼吸监测系统。

更新日期：2022-01-31

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