Fluorescence preselection of bioaerosol for single-particle mass spectrometry
نویسندگان
چکیده
منابع مشابه
Fluorescence preselection of bioaerosol for single-particle mass spectrometry.
We have designed, constructed, and tested a system that pre-selects the biological fraction of airborne particles from the overall aerosol. The preselection is based on fluorescence emission excited by a continuous 266 nm laser beam. This beam is one of two cw beams used to measure the aerodynamic particle size of sampled particles. The intention in our system is that single particles, based on...
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Nanotechnology is an emerging and rapidly growing field whose dynamics and prospects pose many great challenges to scientists and engineers. Nanoparticles are being used in many materials and products, including coatings (on plastic, glass and clothing), sunscreen, antimicrobial bandages and clothing, MRI contrast agents, biomedical elemental tags and fuel additives, only to name few. However, ...
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Femtosecond laser induced multi-photon excited fluorescence (MPEF) from individual airborne particles is tested for the first time for discriminating bioaerosols. The fluorescence spectra, analysed in 32 channels, exhibit a composite character originating from simultaneous two-photon and three-photon excitation at 790 nm. Simulants of bacteria aggregates (clusters of dyed polystyrene microspher...
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ژورنال
عنوان ژورنال: Applied Optics
سال: 2006
ISSN: 0003-6935,1539-4522
DOI: 10.1364/ao.45.008531