Charged Aerosol Filter Curtain for Airborne Pathogen Capture
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Solution Overview
Problem
Conventional air filters, including HEPA filters, are inadequate in capturing small bacteria, viruses, and molecules like allergens and toxins, as they cannot kill infectious agents and become inefficient and potentially leak due to clogging, posing risks in environments like hospitals and transportation vehicles.
Innovation Solution
A fluid or aerosol filter system using a curtain of charged particles or micelles that can continuously capture and decontaminate airborne agents through electrostatic and affinity binding, with the ability to kill or inactivate captured microorganisms and molecules, eliminating the need for solid mesh filters and reducing maintenance costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional mesh network filters (including HEPA filters) are used to capture airborne agents, then filtering capacity for microorganisms is improved, but air resistance increases and filtering efficiency decreases over time due to clogging
Solution Approach 1:
The patent replaces solid mesh filters with a fluid-based filtration system using charged liquid droplets or aerosol particles that move with the air stream. This hydraulic approach eliminates the physical blockage problem of mesh filters, as the fluid filter medium flows continuously without clogging, maintaining constant air resistance and filtering efficiency over time.
Solution Approach 2:
The invention uses a dynamic fluid filter system where charged droplets or aerosol particles continuously move and renew themselves in the air stream, rather than a static mesh structure. This dynamic renewal prevents the gradual clogging that occurs in conventional filters, maintaining consistent performance characteristics.
2Reliability
If conventional mesh network filters are used to capture airborne agents, then microorganisms are captured, but the captured agents cannot be killed and may detach posing a risk
Solution Approach 1:
The patent changes the physical and chemical parameters of the filter medium from solid to charged liquid/aerosol state. The charged droplets or aerosol particles not only capture microorganisms through electrostatic attraction but also create a chemical environment (via incorporated substances) that kills or inactivates the captured agents, eliminating the detachment risk.
Solution Approach 2:
The charged liquid droplets or aerosol particles serve as an intermediary medium that both captures and neutralizes harmful agents. These intermediaries incorporate killing substances that actively destroy the captured microorganisms, transforming the filter from a passive capture device to an active decontamination system.
3Reliability
If conventional mesh network filters are used, then air cleaning is achieved, but exchange procedures pose a risk of spreading infectious microorganisms
Solution Approach 1:
The fluid filter system is self-renewing and continuously active, eliminating the need for periodic shutdowns and exchanges required by solid mesh filters. The continuous flow of charged droplets or aerosol particles maintains constant filtration capability without creating exposure risks during maintenance procedures.
4Reliability
If HEPA filters are used to capture small bacteria and viruses, then filtering capacity is improved, but the filters are expensive and require efficient pre-filtering systems
Solution Approach 1:
The invention replaces complex solid mesh HEPA filter structures with a simpler fluid-based system using charged droplets or aerosol particles. This hydraulic approach inherently captures small agents through electrostatic forces without requiring complex pre-filtering stages or rigid structural components.
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
The fluid or aerosol filter effectively captures a broad range of airborne contaminants, including viruses and toxins, regardless of size, and renders them harmless, providing continuous efficiency without the limitations of traditional mesh filters, such as clogging and increased air resistance.
Implementation Method 1
A fluid or aerosol filter system using a curtain of charged particles or micelles that can continuously capture and decontaminate airborne agents through electrostatic and affinity binding
Implementation Method 2
A fluid or aerosol filter system using a curtain of charged particles or micelles that can continuously capture and decontaminate airborne agents through electrostatic and affinity binding
Data Source
AI summary
A method for capturing airborne agents or products of agents, such as microorganisms, including viruses, and microbial antigens, toxins and allergens, comprising the formation of at least one curtain of charged particles in the form of an emulsion, a suspension or an aerosol, constantly renewing and regenerating said at least one curtain, and passing air containing airborne agents through said at least one curtain, which acting as a filter captures said agents; as well as a particle formulation for performing the method, comprising any charged particles dispersed in a liquid, including lipid-containing particles, e.g. in the form of an emulsion, or micelles, or lipid-containing particles in the form of an aerosol, or any other charged airborne particles in an aerosol.