Opportunity at U.S. Army Research Laboratory (ARL)
Optical Techniques for Detection of Bioaerosols
MD and NM-Computational and Information Sciences, Computational and Information Sciences Directorate
||Adelphi, MD 207831197
|Gurton, Kristan P.
Currently, there is no reliable method for real-time detection and/or identification of hazardous biological aerosols. Early warning systems are badly needed that are capable of instantaneously detecting the presence of hazardous airborne particulates. Existing point-detection deployed today involves fluorescent antibody tagging that requires long time periods to process and analyze. Furthermore, these types of systems are easily thwarted since they are tailored to detect only a few very specific antigens. As a result, they are put at a disadvantage by choosing a BW agent (or variant) that is considered atypical. If rapid detection is a primary objective for detecting BW agents (either for point or long-range detection), then direct optical probing must be considered. Our experimental program is considering the following techniques: conventional Fourier-transform infrared (FTIR) spectroscopy, FTIR Raman spectroscopy, resonate Raman, laser-induced breakdown spectroscopy, and various single particle and ensemble photoacoustic techniques. Research designed to measure specific IR absorption and Raman spectra on intact bioaerosols is extremely rare in the literature and is still considered in its infancy.
Aerosols; Bioaerosols; Spectroscopy; Photoacoustics; Absorption; Scattering;
Open to U.S. citizens, permanent residents and non-U.S. citizens
Open to Postdoctoral applicants