Real-time detection of microbial contamination

Kim, Hea-Young; Estes, C.; Duncan, A.; Wade, B.; Cleary, F.C.; Lloyd, Christopher R.; Ellis, Walther R.; Powers, Linda S.

doi:10.1109/memb.2004.1297183

Cited by 22 publications

(2 citation statements)

References 21 publications

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“…As mentioned above, the incident of mail being tainted with Bacillus anthracis spores in the United States in 2001 increased the need for the real-time measurement of microorganisms [19]. Subsequently, real-time instruments using fluorescence excitation have been developed.…”

Section: Discussionmentioning

confidence: 99%

“…DNA sequencing analysis can provide a comprehensive analysis of the microbiome, but it requires expensive equipment, highly skilled operators, and time-consuming analysis. The 2001 incident of mail tainted with Bacillus anthracis spores in the United States increased the need for the real-time measurement of microorganisms [19]. In addition, for respiratory tract infections caused by infectious bioaerosols, real-time detection and identification of the location of a sudden increase in bioaerosol particle concentrations (hot spots) will enable faster mitigation measures to be taken.…”

Section: Introductionmentioning

confidence: 99%

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Bioaerosol Sensor for In Situ Measurement: Real-Time Measurement of Bioaerosol Particles in a Real Environment and Demonstration of the Effectiveness of Air Purifiers to Reduce Bioaerosol Particle Concentrations at Hot Spots

Yanagi,

Fukushima,

Nagai

et al. 2023

Atmosphere

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In this study, we first conducted laboratory experiments on the sensitivity of a newly developed bioaerosol sensor (BAS) suitable for in situ measurements. Then, we performed an in situ test in a shared student space at a university. Furthermore, the effectiveness of ventilation and air purification as a mitigation measure for a location with high concentrations of bioaerosol particles (hot spots) was verified. The experimental results show that the measured values for polystyrene latex are in good agreement with the predicted Mie theory value. They also show a good response to fluorescent particles. The in situ test showed that the BAS fluorescent system does not respond to non-fluorescent particles but only to fluorescent particles. During respiratory infection outbreaks, real-time detection at hot spots and a reduction in particulate matter, including bioaerosols, through ventilation and air purification equipment are effective. In this study, the BAS measurement results showed significant correlations not only with fluorescent particles but also with live bacteria. This does not prove that viruses can be measured in real time. If real-time measurements for viruses become available in the future, the findings of this study will be helpful in mitigating respiratory tract infections caused by viruses.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%