Acaricidal Infectious Agents for House Dust Mite Control

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Solution Overview

Problem

Current methods for controlling house dust mite infestations are inadequate and lack a universally effective strategy, requiring complex and demanding lifestyle changes, and existing chemical acaricides are either ineffective or pose environmental and health risks.

Innovation Solution

The use of acaricidal infectious agents, such as viruses, bacteria, fungi, or protozoans, that can infect and replicate within house dust mites, reducing their populations and the production of allergens, and these agents are formulated for application in various settings to prevent infestations and alleviate associated conditions like asthma.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If chemical acaricides are used to control house dust mites, then mite population reduction is achieved, but environmental and health risks increase

Engineering Contradiction:

Improvemite population control effectivenessVSAvoidenvironmental and health risks

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent changes the fundamental parameter of the acaricide from chemical substances to biological agents (viruses, bacteria, fungi, protozoans). This parameter change maintains mite population control effectiveness while eliminating the environmental and health risks associated with chemical acaricides, as the biological agents are highly specific to mites and do not persist in the environment.

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent replaces the chemical mechanism of action with a biological mechanism. Instead of using chemicals that kill mites through toxic effects, the invention uses infectious agents that replicate within mites and cause disease or death through biological processes, thereby substituting a harmful chemical system with a targeted biological system.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Reliability

If mechanical removal methods are used to remove mite faeces, then mite debris is eliminated, but allergenic dust is generated and distributed

Engineering Contradiction:

Improvemite faeces removal effectivenessVSAvoidallergenic dust distribution

Core Design Contradiction:

ReliabilityVSObject-generated harmful factors

Solution Approach 1:

The patent converts the harmful effect of mechanical removal (which breaks up faeces and creates allergenic dust) into a beneficial approach by using biological agents that selectively target and kill mites without mechanical force. The infectious agents penetrate and replicate within mites, causing them to die naturally and be removed through safe means, thereby eliminating the harmful dust generation effect.

Inventive Principle:

Principle #22Blessing in disguise (Convert harm into benefit)

3Reliability

If conventional control methods are applied, then local mite reduction is achieved, but a universally effective strategy does not exist

Engineering Contradiction:

Improvelocal mite infestation controlVSAvoiduniversal applicability across different settings

Core Design Contradiction:

ReliabilityVSAdaptability or versatility

Solution Approach 1:

The patent applies universality by developing biological acaricides that can effectively control house dust mites across multiple different environments and settings. The infectious agents are designed to be broadly effective against mite species in various habitats, providing a universal control strategy that works in homes, workplaces, and other environments, unlike conventional methods that require location-specific approaches.

Inventive Principle:

Principle #6Universality (Multi-functionality)

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

This approach effectively reduces house dust mite populations and allergen levels, providing a broad-acting control strategy that is applicable across multiple settings, thereby improving the management of asthma and other allergic conditions.

Implementation Method 1

The agent is capable of producing an acaricidal effect by establishing a transmissible infection of house dust mites

Methodology Applied

Scientific EffectViral infection and replication:

Implementation Method 2

the agent kills the house dust mite by infecting and/or colonising the house dust mite and/or by causing cell lysis in the house dust mite

Methodology Applied

Scientific EffectCell lysis:

Implementation Method 3

The agent is capable of producing an acaricidal effect by establishing a transmissible infection of house dust mites

Methodology Applied

Scientific EffectColonisation:

Implementation Method 4

The agent is capable of producing an acaricidal effect by establishing a transmissible infection of house dust mites

Methodology Applied

Scientific EffectTransmissible infection:

Data Source

PatentUS20250072429A1acaricides

Publication Date: 2025.03.06 EVOLUTION BIOTECH

AI summary

The present invention relates to a method of treating or preventing a house dust mite infestation, the method comprising applying an acaricidal infectious agent at a site of a house dust mite infestation, or at a site proximal thereto, or at a site at risk of such infestation. Also encompassed are uses of acaricidal infectious agents, methods of isolating acaricidal infectious agents, acaricidal infectious agents obtainable by the methods, acaricidal infectious agent formulations, foodstuffs and mite attractants comprising the same.