A Microfluidic Chip-Based Integrated Device Combining Aerosol Sampling and LAMP-CRISPR Detection for Airborne Virus...

Area of Science:

• Environmental Science
• Biotechnology
• Public Health

Background:

• Effective airborne virus detection is crucial for epidemic control.
• Existing aerosol samplers lack sufficient flow rates for large public areas.
• Microfluidic chip-based LAMP-CRISPR shows promise but requires integration with sampling.

Purpose of the Study:

• To develop an integrated device for high-flow-rate aerosol sampling and microfluidic chip-based detection of airborne viruses.
• To address the limitations of current aerosol sampling technologies for large-scale surveillance.
• To enable rapid and sensitive detection of airborne pathogens like SARS-CoV-2.

Main Methods:

• Development of a high-flow-rate aerosol sampling (HFAS) system.
• Integration of HFAS with a microfluidic LAMP-CRISPR detection (MLCD) chip.
• Testing the aerosol sampling and microfluidic chip-based detection (ASMD) device in environmental conditions.

Main Results:

• The HFAS system achieved a flow rate of 6912 L/min with high collection efficiency.
• An enrichment ratio of 1.93 × 10⁷ was obtained, facilitating sensitive detection.
• The integrated ASMD device demonstrated feasibility for environmental aerosol sampling and virus detection.

Conclusions:

• The developed ASMD device offers a promising solution for airborne virus surveillance in large spaces.
• The high-flow-rate sampling and integrated microfluidic detection enhance detection capabilities.
• This technology can significantly contribute to public health and epidemic prevention strategies.