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Development of a Cloud-Based Epidermal MoSe_2 Device for Hazardous Gas Sensing

机译：基于云的表皮MoSe_2装置用于有害气体传感的开发

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摘要

Toxic gases such as NO2 and irritant gases such as NH3 are two of the harshest aspects that trigger the exacerbation of the respiratory system for asthma patients. Monitoring and recording high-risk gases are very important for tracking disease and alerting patients because humans can be exposed to a vulnerable environment with inconspicuous gases. Current detectors suffer from lack of portability and cannot provide daily real-time detection. This work develops a light, inexpensive epidermal gas sensor based on ultralarge MoSe2 nanosheets. MoSe2 nanosheets are obtained using a gold-assisted exfoliation method and the electrical and optical properties of the film are characterized. A high-performance gas sensor for NO2 and NH3, which can be integrated onto human skin, is fabricated and shows great stability with up to 30% tensile strain. In particular, the device is able to detect down to 1 part per million with fast response (200 s). The system is effective in providing timely warnings and the sensing data are uploaded to a cloud-based terminal so that a medical institute can easily access them and provide a more accurate diagnosis.
机译：诸如NO2之类的有毒气体和诸如NH3之类的刺激性气体是触发哮喘患者呼吸系统恶化的两个最严酷的方面。监视和记录高风险气体对于跟踪疾病和警告患者非常重要，因为人类可能会暴露在脆弱的环境中而看不见气体。当前的检测器缺乏便携性，不能提供每日的实时检测。这项工作开发了一种基于超大MoSe2纳米片的轻便，便宜的表皮气体传感器。 MoSe2纳米片使用金辅助剥离法获得，并表征了薄膜的电学和光学性质。制造了一种可以将NO 2和NH 3集成到人体皮肤上的高性能气体传感器，该传感器在高达30％的拉伸应变下显示出出色的稳定性。特别是，该设备能够以快速响应（<200 s）检测到百万分之一。该系统可有效地提供及时的警告，并将感应数据上传到基于云的终端，以便医疗机构可​​以轻松访问它们并提供更准确的诊断。

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  • 来源
    《Advanced Functional Materials》 |2019年第18期|1900138.1-1900138.10|共10页
  • 作者

    Guo Shiqi; Yang Dong; Zhang Sheng; Dong Quan; Li Baichen; Tran Nam; Li Zhenyu; Xiong Yujie; Zaghloul Mona E.;

  • 作者单位

    George Washington Univ, Sch Engn & Appl Sci, Washington, DC 20052 USA;

    Univ Sci & Technol China, Hefei Natl Lab Phys Sci Microscale, IChEM Collaborat Innovat Ctr Chem Energy Mat, Hefei 230026, Anhui, Peoples R China|Univ Sci & Technol China, Sch Chem & Mat Sci, Hefei 230026, Anhui, Peoples R China|Harvard Med Sch, Div Biomed Engn, Brigham & Womens Hosp, Renal Div,Dept Med, Cambridge, MA 02139 USA;

    Harvard Med Sch, Div Biomed Engn, Brigham & Womens Hosp, Renal Div,Dept Med, Cambridge, MA 02139 USA;

    George Washington Univ, Sch Engn & Appl Sci, Washington, DC 20052 USA;

    George Washington Univ, Sch Engn & Appl Sci, Washington, DC 20052 USA;

    George Washington Univ, Sch Engn & Appl Sci, Washington, DC 20052 USA;

    George Washington Univ, Sch Engn & Appl Sci, Washington, DC 20052 USA;

    Univ Sci & Technol China, Hefei Natl Lab Phys Sci Microscale, IChEM Collaborat Innovat Ctr Chem Energy Mat, Hefei 230026, Anhui, Peoples R China|Univ Sci & Technol China, Sch Chem & Mat Sci, Hefei 230026, Anhui, Peoples R China;

    George Washington Univ, Sch Engn & Appl Sci, Washington, DC 20052 USA;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    2D material; cloud data; epidermal electronics; gas sensor;

    机译：二维材料;云数据;表皮电子设备;气体传感器;

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