Development of a real-time handheld bioaerosol monitoring system using ultraviolet-light emitting diode induced fluorescence

A handheld biological particle monitoring system that analyzes airborne biological particles in real time was designed, fabricated and its performance was investigated. An ultraviolet-light emitting diode (UV-LED) light source with a 280-nm wavelength was used. The design of an optical module that i...

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Bibliographic Details
Published in:Instrumentation science & technology 2020-07, Vol.48 (4), p.417-430
Main Authors: Jeong, Young-Su, Lee, Jong Min, Park, Jinho, Chong, Eugene, Choi, Kibong
Format: Article
Language:English
Subjects:
Bioaerosols
Biological aerosol detection
Biological effects
Biomonitoring
Environmental monitoring
Fluorescence
laser induced fluorescence
Light emitting diodes
Light sources
Monitoring systems
Nozzles
Real time
Ultraviolet radiation
ultraviolet-light emitting diode (UV-LED)
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Description
Summary:A handheld biological particle monitoring system that analyzes airborne biological particles in real time was designed, fabricated and its performance was investigated. An ultraviolet-light emitting diode (UV-LED) light source with a 280-nm wavelength was used. The design of an optical module that is composed of an ultraviolet source, a nozzle and flow controller, an ultraviolet cell, and a detection region was described. Through performance measurements, it was confirmed that scattering signals that corresponded to each particle size were measured, and that the proposed system effectively distinguished biological particles from non-biological components. It is expected that the proposed system can be applied to various biological particle and environment monitoring systems.
ISSN:1073-9149
1525-6030
DOI:10.1080/10739149.2020.1735413