en
Scientific article
Open access
English

Discriminating Bio-aerosols from Non-Bio-aerosols in Real-Time by Pump-Probe Spectroscopy

Published inScientific reports, vol. 6, 33157
Publication date2016
Abstract

The optical identification of bioaerosols in the atmosphere and its discrimination against combustion related particles is a major issue for real-time, field compatible instruments. In the present paper, we show that by embedding advanced pump-probe depletion spectroscopy schemes in a portable instrument, it is possible to discriminate amino acid containing airborne particles (bacteria, humic particles, etc.) from poly-cyclic aromatic hydrocarbon containing combustion particles (Diesel droplets, soot, vehicle exhausts) with high selectivity. Our real-time, multi-modal device provides, in addition to the pump-probe depletion information, fluorescence spectra (over 32 channels), fluorescence lifetime and Mie scattering patterns of each individually flowing particle in the probed air.

Research group
Citation (ISO format)
SUBTIL SOUSA, Gustavo Alexandre et al. Discriminating Bio-aerosols from Non-Bio-aerosols in Real-Time by Pump-Probe Spectroscopy. In: Scientific reports, 2016, vol. 6, p. 33157. doi: 10.1038/srep33157
Main files (1)
Article (Published version)
accessLevelPublic
Identifiers
ISSN of the journal2045-2322
531views
189downloads

Technical informations

Creation09/20/2016 1:59:00 PM
First validation09/20/2016 1:59:00 PM
Update time03/15/2023 12:46:01 AM
Status update03/15/2023 12:46:01 AM
Last indexation01/16/2024 9:51:09 PM
All rights reserved by Archive ouverte UNIGE and the University of GenevaunigeBlack