Related Experiment Video
Updated: Apr 15, 2026
Author Spotlight: Advancing Rapid Detection of Respiratory Pathogens Using Microfluidic Chip
Published on: March 29, 2024
Biosensors for Monitoring Airborne Pathogens
Christopher F Fronczek1, Jeong-Yeol Yoon2
1Department of Agricultural and Biosystems Engineering and Biomedical Engineering Graduate Interdisciplinary Program, University of Arizona, Tucson, AZ, USA.
Abstract:
Airborne pathogens affect both humans and animals and are often highly and rapidly transmittable. Many problematic airborne pathogens, both viral (influenza A/H1N1, Rubella, and avian influenza/H5N1) and bacterial (Mycobacterium tuberculosis, Streptococcus pneumoniae, and Bacillus anthracis), have huge impacts on health care and agricultural applications, and can potentially be used as bioterrorism agents. Many different laboratory-based methods have been introduced and are currently being used. However, such detection is generally limited by sample collection, including nasal swabs and blood analysis. Direct identification from air (specifically, aerosol samples) would be ideal, but such detection has not been very successful due to the difficulty in sample collection and the extremely low pathogen concentration found in aerosol samples. In this review, we will discuss the portable biosensors and/or micro total analysis systems (µTAS) that can be used for monitoring such airborne pathogens, similar to smoke detectors. Current laboratory-based methods will be reviewed, and possible solutions to convert these lab-based methods into µTAS biosensors will be discussed.
Insights
Portable biosensors offer a promising solution for detecting airborne pathogens like viruses and bacteria directly from air samples. This technology aims to overcome limitations of current lab-based methods for improved public health and agricultural monitoring.
Area of Science:
- Environmental microbiology
- Biotechnology
- Public health
Background:
- Airborne pathogens, including viruses (e.g., influenza, Rubella) and bacteria (e.g., M. tuberculosis, B. anthracis), pose significant threats to human and animal health.
- Current detection methods rely on laboratory analysis of samples like nasal swabs or blood, which are often impractical for real-time monitoring.
- Direct airborne pathogen detection is challenging due to difficulties in aerosol sample collection and low pathogen concentrations.
Purpose of the Study:
- To review current laboratory-based methods for airborne pathogen detection.
- To discuss the potential of portable biosensors and micro total analysis systems (µTAS) for real-time airborne pathogen monitoring.
- To explore solutions for adapting existing lab-based techniques into portable biosensor platforms.
Main Methods:
- Review of existing literature on laboratory-based airborne pathogen detection methods.
- Exploration of portable biosensor and micro total analysis system (µTAS) technologies.
- Analysis of challenges and potential solutions for direct airborne pathogen identification.
Main Results:
- Laboratory-based methods are effective but limited by sample collection and processing.
- Portable biosensors and µTAS present a viable alternative for in-situ detection.
- Adapting lab-based assays to µTAS platforms requires overcoming technical hurdles.
Conclusions:
- Portable biosensors and µTAS hold significant promise for revolutionizing airborne pathogen surveillance.
- Development of these technologies could lead to early detection systems, akin to smoke detectors, for infectious diseases.
- Further research is needed to translate lab-based methods into robust, field-deployable biosensor systems.
