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Airborne virus detection by a sensing system using a disposable integrated impaction device.

Kei Takenaka1, Shigenori Togashi, Ryo Miyake

  • 1Hitachi, Ltd, Research & Development Group, Center for Technology Innovation-Mechanical Engineering, 832-2 Horiguchi, Hitachinaka-shi, Ibaraki 312-0034, Japan.

Journal of Breath Research
|July 23, 2016
PubMed
Summary

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A new sensing system for biological aerosol particles (SSBAP) enables rapid, self-administered detection of respiratory infections like influenza. This system uses a disposable device for easy breath sample analysis, improving epidemic prevention through accessible diagnostics.

Area of Science:

  • Biomedical Engineering
  • Infectious Disease Diagnostics
  • Aerosol Science

Background:

  • Respiratory infections, such as influenza, pose significant public health challenges due to epidemic potential.
  • Frequent testing is crucial for preventing the spread of respiratory infections.
  • Current diagnostic methods often require trained personnel and specialized facilities, limiting accessibility.

Purpose of the Study:

  • To develop a user-friendly sensing system for biological aerosol particles (SSBAP) capable of self-diagnosis.
  • To create a disposable device integrated into the SSBAP for easy and rapid detection of infectious agents in breath.
  • To enable individuals with no medical background to detect infectious biological aerosol particles safely and efficiently.

Main Methods:

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  • Development of a disposable device acting as an impactor, reagent flow-cell, and optical window for fluorescent detection.
  • Integration of a light-blocking film to enhance fluorescence detection of small particles.
  • Automated detection process involving breath sample collection, fluorescent labeling via antigen-antibody reaction, dye removal, and fluorescence detection.

    • Main Results:

    • The disposable device demonstrated a collection efficiency of over 97% for microspheres.
    • The SSBAP successfully detected aerosolized influenza virus particles at concentrations exceeding 8.3 × 10^3 particles/L.
    • Detection was achieved within a 10-minute timeframe.

    Conclusions:

    • The developed SSBAP with its disposable device offers a safe, easy, and rapid method for detecting infectious biological aerosol particles.
    • This system has the potential to facilitate self-diagnosis of respiratory infections, aiding in epidemic prevention.
    • The high collection efficiency and rapid detection capabilities highlight the system's clinical utility.