Publicado 4 números por año
ISSN Imprimir: 1093-3611
ISSN En Línea: 1940-4360
Indexed in
DETECTION OF BACTERIAL DEPOSITS AND BIO AEROSOLS BY TIME-RESOLVED LASER-INDUCED BREAKDOWN SPECTROSCOPY (TRELIBS)
SINOPSIS
Potentialities of Time-REsolved Laser-Induced Breakdown Spectroscopy technique (TRELIBS or LIBS method) are investigated in order to detect biological matter in bulk and aerosolized forms. Alert detection of biological weapons is the main purpose. With this aim in view, eight different species in bulk form have been primarily considered: six bacteria and two pollens under a pellet form. A cumulative intensity ratio is proposed as a quantitative criterion due to its linearity and reproducibility. TRELIBS exhibits a good ability to differentiate between all these species whatever the growing medium, the specie or the strain. Studies are also extended to the analysis of aerosolized models with generated dry particulate matter and micrometric droplets to simulate single bacterial elemental compositions and concentrations. The expected capabilities make TRELIBS a potential candidate to trigger alarms either on surfaces or in ambient air.
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Gottfried Jennifer L., Defense applications, in Laser-Induced Breakdown Spectroscopy, 2020. Crossref