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Standoff laser induced fluorescence of living and inactivated bacteria

Duschek, Frank and Fellner, Lea and Grünewald, Karin and Hausmann, Anita and Julich, Sandra and Tomaso, Herbert and Wilsenack, Frank and Handke, Jürgen (2016) Standoff laser induced fluorescence of living and inactivated bacteria. 12th CBW Protection Symposium, 8.-10. Jun. 2016, Stockholm, Schweden.

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Biological hazards, such as bacteria, represent a non-assessable threat in case of an accident or a terroristic attack. Rapid detection and highly sensitive identification of released, suspicious substances at low false alarm rates are challenging requirements which one single technology cannot cope with. It has been shown that standoff detection using laser-induced fluorescence (LIF) can provide information on the class of bioorganic substances in real-time1. In combination with traditional, highly sensitive, but non-standoff methods, the time for identification of the threat can be optimized. This work is aimed at the selectivity of LIF technology for different bacterial strains. A second important aspect examines how to deal with inactivated bacteria and how their fluorescence signature changes after deactivation. LIF spectra of closely and more distantly related bacterial strains are presented as well as spectra of bacteria treated by different inactivation methods.

Item URL in elib:https://elib.dlr.de/108104/
Document Type:Conference or Workshop Item (Speech)
Title:Standoff laser induced fluorescence of living and inactivated bacteria
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Duschek, Frankfrank.duschek (at) dlr.dehttps://orcid.org/0000-0002-1809-0257
Fellner, Lealea.fellner (at) dlr.dehttps://orcid.org/0000-0002-1359-0260
Grünewald, KarinKarin.Gruenewald (at) dlr.deUNSPECIFIED
Hausmann, AnitaAnita.Hausmann (at) dlr.deUNSPECIFIED
Julich, Sandrafriedrich-loeffler-institut, institute of bacterial infections and zoonoses, naumburger strasse 96a, 07743 jenaUNSPECIFIED
Tomaso, Herbertfriedrich-loeffler-institut, institute of bacterial infections and zoonoses, naumburger strasse 96a, 07743 jenaUNSPECIFIED
Handke, JürgenJuergen.Handke (at) dlr.deUNSPECIFIED
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:No
Keywords:Standoff detection, bacteria, aerosols, laser-induced fluorescence, LIF
Event Title:12th CBW Protection Symposium
Event Location:Stockholm, Schweden
Event Type:international Conference
Event Dates:8.-10. Jun. 2016
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:fixed-wing aircraft
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Laser Research and Technology (old)
Location: Lampoldshausen
Institutes and Institutions:Institute of Technical Physics
Deposited By: Duschek, Dr.rer.nat. Frank
Deposited On:01 Dec 2016 13:03
Last Modified:31 Jul 2019 20:05

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