Collection Chamber Bioreceptor Substrate Pathogen Detection
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Solution Overview
Problem
Conventional air monitoring systems cannot specifically identify airborne pathogens in indoor environments, making it difficult to detect and contain outbreaks in crowded spaces.
Innovation Solution
An air sampling system that includes an air inflow channel, a cooling unit for condensing water vapor, a collection chamber with a bioreceptor-coated active target substrate, and an optical detection unit to detect pathogens in real-time by analyzing condensed liquid water.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional air monitoring systems measure particulate matter content, then they can provide general air quality data, but they cannot specifically identify the types of particles present in the air
Solution Approach 1:
The system segments the detection process into distinct functional modules: a collection chamber for condensing and collecting liquid water from air samples, a bioreceptor-coated substrate for specific pathogen binding, and an optical detection unit for identification. This segmentation allows each component to specialize in one aspect of pathogen detection, achieving specific particle identification while maintaining manageable system complexity through modular design.
2Reliability
If air sampling systems use cooling units to condense water vapor for pathogen detection, then they can enable real-time pathogen detection, but they require maintaining consistent liquid volume in the collection chamber
Solution Approach 1:
The system incorporates a level sensor that continuously monitors the liquid volume in the collection chamber and provides feedback to the cooling unit. When the liquid level deviates from the optimal range, the level sensor signals the cooling unit to adjust its condensation rate, automatically maintaining the liquid volume within the required range for reliable bioreceptor-substrate interaction and optical detection.
3Quantity of substance
If the system collects liquid water condensed from air to detect pathogens, then it can concentrate airborne pathogens for detection, but it requires precise control of liquid volume for optimal detection
Solution Approach 1:
The level sensor continuously monitors liquid volume in the collection chamber and provides real-time feedback to the cooling unit. When liquid volume exceeds or falls below the optimal range, the feedback signal automatically adjusts condensation rates, ensuring consistent liquid volume that optimizes pathogen concentration on the bioreceptor-coated substrate while maintaining ease of operation through automated control.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables continuous, real-time detection of airborne pathogens such as bacteria, viruses, and allergens by maintaining a consistent liquid volume in the collection chamber and using bioreceptors to react with analytes, facilitating accurate optical detection.
Implementation Method 1
a cooling unit for cooling air in the air inflow channel... a collection chamber for collecting liquid water condensed from air in the air inflow channel
Data Source
AI summary
An air sampling system is disclosed. The air sampling system includes: an air intake unit defining an inlet and an air inflow channel; a fan configured to cause air in a sampling environment to flow into the air inflow channel via the inlet; a cooling unit for cooling air in the air inflow channel; a collection chamber for collecting liquid water condensed from air in the air inflow channel, the collection chamber being removably coupled to the air intake unit and including an active target substrate having a surface that is coated with bioreceptors; and an optical detection unit including a light source, the optical detection unit being configured to illuminate the active target substrate with the light source.