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Inhalation of viruses, bacteria, fungal spores and toxins can lead to respiratory infections and allergic reactions. Existing bioaerosol samplers are designed to collect particles > 0.5µm and therefore have low collection efficiency for viral aerosols, exhaled proteins and other fragments of biological material. Common sampling methods often break apart and inactivate viable viruses and microorganisms through mechanical stress and irreversible desiccation.
A Better Sampling Approach for Airborne Viruses
Condensation particle growth capture substantially improves the collection of bioaerosols (<10nm to 10µm) sampling directly into a liquid medium.
High collection efficiency over all sizes from bare viruses to inhalable droplets
Concentrated samples into liquid (water, buffer or genomic stabilizer)
Maintains virus viability
Instant preservation of DNA/RNA for genomic analysis
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Detailed Specs
The BioSpot-VIVAS sampler performs much like the human lung, providing high-efficiency, gentle collection into liquid through condensation-enhanced inertial deposition. A laminar-flow condensation growth tube (CGT) encapsulates airborne particles into liquid droplets and gently deposits the droplets onto a liquid surface. The air sample flow is 8 L/min, approximating the average rate at which a person breathes. Particles from this flow are deposited into ~2mL of water, buffer, nutrient broth solution or genomic preservative (patent pending). Bioaerosols, including viable viruses, bacteria, fungal spores, toxins, and exhaled proteins are collected with high efficiency independent of their size, shape, or hydrophobicity. The high-fidelity, concentrated samples are ready for lab analysis.
A New Sampling Approach
A laminar-flow water condensation particle growth technique substantially improves the collection of bioaerosols (<10nm to 10µm) sampling directly into a liquid medium.
The Condensation Growth Tube “BioSpot-VIVAS” Sampler
High efficiency collection – viruses, bacteria, spores, toxins, exhaled proteins
Concentrated samples into liquid
Maintains viability
Instant preservation of DNA/RNA for genomic analysis
Applications
Airborne disease transmission research
Environmental microbiome studies
Natural infectious disease/pandemic surveillance in public, transportation, medical and agricultural settings
Monitoring biocontamination in clean pharmaceutical aseptic manufacturing
Non-invasive medical diagnostics of exhaled breath particulates
Bio-surveillance for early warning of an aerosolized bioterrorism attack
Atmospheric research in ice nucleation and cloud formation
