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Measurement of circular intensity differential scattering (CIDS) from single airborne aerosol particles for bioaerosol detection and identification

Optics Express, ISSN: 1094-4087, Vol: 30, Issue: 2, Page: 1442-1451
2022
  • 10
    Citations
  • 0
    Usage
  • 15
    Captures
  • 0
    Mentions
  • 0
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    10
    • Citation Indexes
      10
  • Captures
    15

Article Description

The circular intensity differential scattering (CIDS), i.e. the normalized Mueller matrix element -S14/S11, can be used to detect the helical structures of DNA molecules in biological systems, however, no CIDS measurement from single particles has been reported to date. We report an innovative method for measuring CIDS phase functions from single particles individually flowing through a scattering laser beam. CIDS signals were obtained from polystyrene latex (PSL) microspheres with or without coating of DNA molecules, tryptophan particles, and aggregates of B. subtilis spores, at the size of 3 μm in diameter. Preliminary results show that this method is able to measure CIDS phase function in tens of microseconds from single particles, and has the ability to identify particles containing biological molecules.

Bibliographic Details

Pan, Yong-Le; Kalume, Aimable; Arnold, Jessica; Beresnev, Leonid; Wang, Chuji; Rivera, Danielle N; Crown, Kevin K; Santarpia, Joshua

Optica Publishing Group

Physics and Astronomy

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