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Self-powered, flexible and remote-controlled breath monitor based on TiO2 nanowire networks

机译：基于TiO2纳米线网络的自动，灵活和遥控呼吸监视器

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摘要

Smart breath monitor devices with high stretchability, fast response/recovery times and self-powered characteristic are essential in the wearable medical and life science applications. In this work, we report on the development of a versatile high-performance humidity sensor based on TiO2 nanowire networks for self-powered sensing application of human breath monitoring. These sensors, with typical response times of similar to 3.6 s and recovery times of similar to 14 s, exhibit high sensitivity to water vapor and can yield an output voltage that is directly proportional to the humidity level of ambient environment. The structure of nanowire networks is highly flexible and maintains the output voltage even after 10 000 times bending. By combining this type of sensor with a commercial signal transmission and processing system, it shows the good basis for real-time/remote-controlled monitoring and analysis of human breath under a variety of respiratory conditions. Our results suggest a new class of humidity sensing for self-powered biomedical devices and open to new technologies in energy, electronics, and sensor applications.
机译：智能呼吸监控设备具有高可拉伸性，快速响应/恢复时间和自动特性在可穿戴医疗和生命科学应用中至关重要。在这项工作中，我们报告了基于TiO2纳米线网络的多功能高性能湿度传感器的开发，用于人类呼吸监测的自动检测应用。这些传感器的典型响应时间与类似于3.6秒和相似的恢复时间相对于14秒，对水蒸气具有很高的敏感性，并且可以产生与周围环境的湿度水平成比例的输出电压。纳米线网络的结构非常灵活，即使在弯曲10 000倍后也保持输出电压。通过将这种类型的传感器与商业信号传输和处理系统相结合，它显示了在各种呼吸状况下的实时/远程控制监测和分析人类呼吸的良好基础。我们的结果为自动生物医学设备提出了一类湿度传感，对能源，电子产品和传感器应用的新技术开放。

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  • 来源
    《Nanotechnology》 |2019年第32期|共9页
  • 作者

    Xiao Yu; Shen Daozhi; Zou Guisheng; Wu Aiping; Liu Lei; Duley Walter W.; Zhou Y. Norman;

  • 作者单位

    Tsinghua Univ Minist Educ PR China Key Lab Adv Mfg Mat Proc Technol Dept Mech Engn State Key Lab Tribol Beijing 100084 Peoples R China;

    Tsinghua Univ Minist Educ PR China Key Lab Adv Mfg Mat Proc Technol Dept Mech Engn State Key Lab Tribol Beijing 100084 Peoples R China;

    Tsinghua Univ Minist Educ PR China Key Lab Adv Mfg Mat Proc Technol Dept Mech Engn State Key Lab Tribol Beijing 100084 Peoples R China;

    Tsinghua Univ Minist Educ PR China Key Lab Adv Mfg Mat Proc Technol Dept Mech Engn State Key Lab Tribol Beijing 100084 Peoples R China;

    Tsinghua Univ Minist Educ PR China Key Lab Adv Mfg Mat Proc Technol Dept Mech Engn State Key Lab Tribol Beijing 100084 Peoples R China;

    Univ Waterloo Dept Phys &

    Astron Waterloo ON N2L 3G1 Canada;

    Tsinghua Univ Minist Educ PR China Key Lab Adv Mfg Mat Proc Technol Dept Mech Engn State Key Lab Tribol Beijing 100084 Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 特种结构材料;
  • 关键词

    humidity sensor; breath monitor; self-powered; flexibility;

    机译：湿度传感器;呼吸监测;自动支持;灵活性;

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