Fast, reagentless and reliable screening of “white powders” during the bioterrorism hoaxes

Highlights • Fluorescence decays of dry microorganisms and popular “white powders” were measured. • Chemometric analysis was applied for classification of species. • Using two or three excitation wavelengths improves distinguishing between species. • We demonstrated direct, real-time screening of th...

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Bibliographic Details
Published in:Forensic science international 2015-03, Vol.248, p.71-77
Main Authors: Włodarski, Maksymilian, Kaliszewski, Miron, Trafny, Elżbieta Anna, Szpakowska, Małgorzata, Lewandowski, Rafał, Bombalska, Aneta, Kwaśny, Mirosław, Kopczyński, Krzysztof, Mularczyk-Oliwa, Monika
Format: Article
Language:English
Subjects:
Bacteria
Biological
Bioterrorism
Classification
Cluster Analysis
Decay
Deception
Drying
E coli
Excitation
Fluorescence
Fluorescence lifetime
Forensic sciences
Fungi
Fungi - physiology
Hierarchical cluster analysis (HCA)
Humans
Lifetime
Microorganisms fluorescence decay
Pathology
Powders
Principal Component Analysis
Principal component analysis (PCA)
Proteins
R&D
Real time
Research & development
Risk assessment
Spores, Bacterial - physiology
Statistical analysis
Stroboscopy
UV LED stroboscopic technique
White powders fluorescence analysis
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Description
Summary:Highlights • Fluorescence decays of dry microorganisms and popular “white powders” were measured. • Chemometric analysis was applied for classification of species. • Using two or three excitation wavelengths improves distinguishing between species. • We demonstrated direct, real-time screening of the suspected “white powders”.
ISSN:0379-0738
1872-6283
DOI:10.1016/j.forsciint.2014.12.023