Chitosan-Encapsulated Essential Oils for Controlled Pest Release

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Solution Overview

Problem

Existing pesticides often have negative impacts on non-target organisms and the environment due to their non-controlled release and high toxicity, and they lack effectiveness against a wide range of pests.

Innovation Solution

Chitosan encapsulation of pesticidal active ingredients, such as essential oils, to create nanoparticle formulations that provide controlled release and enhance efficacy against pests like nematodes, fungi, and insects, while being environmentally friendly.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional pesticides are used for pest control, then pest killing effectiveness is achieved, but negative impacts on non-target organisms and the environment occur due to non-controlled release and high toxicity

Engineering Contradiction:

Improvepest control effectivenessVSAvoidenvironmental toxicity

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

Chitosan nanoparticles serve as an intermediary carrier that encapsulates pesticidal active ingredients, controlling their release and reducing direct environmental toxicity while maintaining pest control effectiveness

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent changes the physical state and delivery parameters of pesticides by formulating them as nanoparticle suspensions with controlled release characteristics, transforming conventional bulk pesticides into controlled-release nanoscale formulations

Inventive Principle:

Principle #35Parameter changes

2Reliability

If conventional pesticides are used for pest control, then pest killing effectiveness is achieved, but lack of controlled release leads to rapid degradation and short duration of activity

Engineering Contradiction:

Improvepest control effectivenessVSAvoidduration of pesticide activity

Core Design Contradiction:

ReliabilityVSDuration of action of moving object

Solution Approach 1:

The chitosan nanoparticle formulation enables continuous and controlled release of pesticidal active ingredients over extended periods, maintaining effective concentration levels and prolonging the duration of pest control activity

Inventive Principle:

Principle #20Continuity of useful action

Solution Approach 2:

The encapsulation process pre-positions the active ingredients within the nanoparticle structure, allowing for controlled and sustained release over time rather than immediate degradation

Inventive Principle:

Principle #10Preliminary action

3Adaptability or versatility

If conventional pesticides are used, then broad-spectrum pest control is achieved, but high toxicity affects non-target organisms

Engineering Contradiction:

Improverange of pests controlledVSAvoidtoxicity to non-target organisms

Core Design Contradiction:

Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

The chitosan nanoparticle formulation provides localized delivery of pesticidal active ingredients to target pests while minimizing exposure to non-target organisms, creating spatial and temporal separation between the pesticide and unintended targets

Inventive Principle:

Principle #3Local quality

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 chitosan encapsulation technology allows for targeted pest control with reduced environmental impact and prolonged activity, effectively controlling various pests without harming non-target organisms.

Implementation Method 1

Chitosan encapsulation is a versatile technique that allows for the controlled release of substances encapsulated within chitosan particles or capsules

Methodology Applied

Scientific EffectEncapsulation:

Implementation Method 2

The chitosan polymer has several unique properties that make it an ideal material for encapsulation, including its biocompatibility, biodegradability, and ability to form stable complexes with a wide range of molecules

Methodology Applied

Scientific EffectComplex formation:

Implementation Method 3

The invention also covers the method of producing the pesticide composition, involving centrifugation to create the nanoparticle formulation

Methodology Applied

Scientific EffectCentrifugation: Centrifuge

Data Source

PatentUS20250248397A1Chitosan encapsulation of absolute (essential) rosemary, peppermint, and cottonseed oils

Publication Date: 2025.08.07 GROPRO CORP

AI summary

Some embodiments are directed to systems, methods, and formulations containing chitosan encapsulated nanoparticle pesticides. The nanoparticle solutions may contain geraniol or other essential oils with concentrations ranging from 50 to 4000 ppm. The pesticides may be used to control chicken mites or chicken red mites in chickens and environments including chickens without having the pesticide translocate to the egg. The nanoparticle formulations are encapsulated in a chitosan solution to create chitosan encapsulated slow-release pesticides. Some embodiments may include a filler, an extender, a wetting agent, a disintegrant, and a surfactant in the pesticide formulation.