Emission Wavelength Dependence of Flourescence Lifetimes of Bacteriological Spores
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Author/Creator ORCID
Date
2005
Type of Work
Department
Physics
Program
Bachelor's Degree
Citation of Original Publication
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Collection may be protected under Title 17 of the U.S. Copyright Law. To obtain information or permission to publish or reproduce, please contact the Goucher Special Collections & Archives at 410-337-6347 or email archives@goucher.edu.
Abstract
Concern about biological terror has increased greatly in the 21st century, and correspondingly, so has the need for
accurate detection and identification of biological hazards, such as B. anthracis. Optical techniques have been
shown to be useful for this purpose1,2,3,4. Use of fluorescence lifetimes as a function of emission wavelength for
different materials using point detection methods appears to be an additional viable option. Although the lifetimes
range only between 2 and 6 nanoseconds, most materials that were tested were distinguishable. A preliminary
database has been compiled for use in a possible future detection system; single-blind tests of unknown materials
confirmed the usefulness of the database.