Solutions for the detection of new coronavirus in the air Bioaerosols have clear infectivity and sensitization, and the long floating time and easy inhalation of aerosol particles will lead to "disease entering from the nose".At present, a variety of infectious diseases have been proven to be transmitted through the form of aerosols, which has a great impact on human health and even threatens human life safety.Therefore, monitoring microbial aerosols is very important for human health.

What is bioaerosol

Bioaerosol refers to a large number of particulate matter that carries biological characteristics in the air, which contains various pathogenic and non-pathogenic biological source components. Due to its small diameter, it can be directly inhaled into the lungs, resulting in the human body.Various diseases.

Aerosol particles contain many kinds of microorganisms

• Bacteria: Bacillus anthrax, Yersinia plague, Vibrio cholerae, Bacillus, Bacillus, Rabbit fever pores, etc.

• Viruses: new coronavirus, yellow fever virus, smallpox virus, forest encephalitis virus, etc.

• Rickettsia: Typhimosis and QFR, etc.

• Chlamydia: Chlamydia parittisca

• Fungi: Penicillium, Aspergillus, etc.

Existing detection methods for bioaerosols

Currently, bioaerosol detection used in public spaces is usually used offline: manual sampling + laboratory testing, that is, staff use aerosol samplers, use impact method or natural settlement method to perform manual air sampling in the site, and then transfer it.Go to the laboratory for culture and assay analysis.However, due to the low concentration of bioaerosols in the air, the large interference, the air is always flowing, and the span of real-time dynamic change values, many difficulties are still faced.And if the delay is too long, the detection significance will be lost.

(Note: The impact method or natural settlement method complies with the "Testing Method for Plankton Bacteria in Clean Room (Zone) of Pharmaceutical Industry" and "Testing Method for Sedimentation Bacteria in Clean Room (Zone) of Pharmaceutical Industry" in Clean Room (Zone) of Pharmaceutical Industry", "GB/T 18203-2000 Health Standards for Hemolytic Streptococcus in Indoor Air", "GB/T 18204.3-2013 Public Places Health Inspection Method Part 3: Air Microorganisms")

In response to the above difficulties, the continuous online monitoring technology of bioaerosols has broken through the traditional offline analysis method. It adopts the national standard medium-wet wall cyclone sampling technology (impact method) combined with isothermal amplification detection and analysis technology to realize direct online injection of air samples and real-time online detection., obtain the analysis results immediately, and the data is true and reliable.

Testing technology

Classic isothermal amplification detection LAMP technology (freeze-dried core preset) is adopted, with short reaction time and strong specificity, and can achieve rapid detection and analysis.

This technology can quickly detect more than 40 biological factors, such as the new coronavirus, influenza virus, Legionella pneumophila, Staphylococcus aureus, etc.

Basic structure

Application scenarios

• Public transportation hub: bus station, airport, high-speed rail station, etc.
  

• Public Health Center: Hospital, Customs, Disease Control, etc.

• Exhibition Center: Exhibition halls, venues, stadiums, shopping malls, etc.

• Epidemic risk places: epidemic community, temporary hospital, etc.

• Security tasks for large gatherings or high-level meetings

• Security guarantees for important buildings and areas

• Other crowded areas

Technical parameters

Instrument flux: 92 samples, analysis time <30 minutes per unit

Collection flow: >200L/min

Detection sensitivity: about 5copy/reaction (can be adjusted as required)

Sampling solution extraction: 0-25ML

Dimensions: 545 x 440 x 475mm (L x W x H)

Voltage: 220V AC, 50Hz

Features

Integrated testing: adopt online monitoring technology to achieve integrated automatic sampling and detection.

Full automation: full process automation and continuous.

Unattended: liberate manpower, save time, and improve work efficiency.

Strong applicability: small size, can be flexibly placed in public spaces.It not only meets the continuous monitoring of conventional air pathogen threats, but also can be used in the emergency monitoring site for epidemics to accurately control the environmental situation.

Freeze-dried ball technology: The reagent uses lyophilized ball technology, and the detection reagent maintains its original structure during the lyophilization process to ensure good activity under normal temperature storage.The reagent is valid for 25℃ at a temperature of up to 30 days, meeting the needs of long-term unattended inspections on site.

Modular design: Reagents, consumables, and pipeline replacement can be quickly realized according to testing needs (after positive testing).

Safe and reliable: fully sealed system, biosafety protection, amplified area negative pressure, HEPA filtration, UV disinfection.

Flexible configuration: The manual sampling toolbox can be configured to perform manual sampling in specific places.

Simple operation: cloud-based control, real-time upload of data, easy operation.

Digital epidemic prevention and control: It can realize a visual platform, conduct early warning of epidemic monitoring, risk assessment, upgrade prevention and control mode and epidemic prevention and control.

Origin: China