Technology Bundle ID
TAB-2711

Personal Air Sampler for Collecting Airborne Aerosol Particulates for Molecular Analysis by Size

Linked ID
E-244-2013-0
Lead Inventors
Teh-Hsun Chen (CDC)
Co-Inventors
Herbert Edgell (CDC)
Jyoti Keswani (CDC)
Development Stages
Prototype
Development Status
  • In situ data available (on-site)
  • Prototype
ICs
CDC
This invention consists of a sampling apparatus that utilizes one or more cyclone separators to collect airborne particles from the atmosphere. The apparatus not only separates out aerosols from the atmosphere, but also serves as a collection tube for aerosol particles. Through its unique design, this CDC-developed apparatus is able to use the centrifugal force of the air flow on aerosolized particles forcing them to separate by size. Since the sample is collected directly in a microcentrifuge tube, in situ analysis of the ambient particulates can be performed. Analysis may include, but is not limited to, PCR, immunoassay analysis, microscopic spore counting, and counting colony-forming units. The device should also have many additional uses for environmental surveillance and occupational health applications.
Commercial Applications
  • Analysis of ambient air particulates
  • Environmental surveillance
  • Occupational safety monitoring
  • Biodefense
  • Long-term exposure assessment
Competitive Advantages
  • Rapid, on-site sampling and analysis.
  • Alternative to surface-sampling and culturing for aerosolized biological agents.
  • Superior extraction efficiency compared to filters, impingers, and impactors.
  • Real-world testing demonstrated device's ability to collect airborne mold and mycotoxins, pollen and pollen fragments, airborne dust particulates, as well as airborne influenza virus in a hospital environment.

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