Silane-Modified Clay Essential Oil Composition for Controlled Release

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Solution Overview

Problem

Essential oils are highly volatile and prone to degradation upon exposure to light, heat, oxygen, and humidity, leading to instability and reduced bioavailability, which hinders their industrial application in fields like food, cosmetics, and pharmaceuticals.

Innovation Solution

An essential oil composition is prepared by homogenizing essential oils or their extracts with silane modified clay, forming a network of non-covalent bonds that encapsulate the oils within a matrix, providing stability and controlled release.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If essential oils are used directly, then they exhibit high biological activity, but they are highly volatile and prone to degradation upon exposure to light, heat, oxygen, and humidity

Engineering Contradiction:
Improvestability of essential oilsVSAvoiddegradation from light, heat, oxygen, and humidity
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The essential oil is encapsulated within the layered structure of montmorillonite clay nanosheets, creating a nested configuration where the oil is protected inside the clay matrix. This nesting structure shields the essential oil from harmful environmental factors while maintaining its biological activity.

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The invention creates a composite material system combining essential oil with silane-modified montmorillonite clay. This composite provides both the biological activity of the essential oil and the stability/protection of the clay matrix, resolving the contradiction between activity and stability.

Inventive Principle:
Principle #40Composite materials

2Reliability

If nanocarriers are formed to enhance stability, then stability and bioavailability are improved, but the existing systems suffer from degradation, high solubility, and reduced bioavailability

Engineering Contradiction:
Improvestability and bioavailabilityVSAvoiddegradation and reduced bioavailability
Core Design Contradiction:
ReliabilityVSLoss of substance

Solution Approach 1:

The montmorillonite clay provides a porous layered structure that allows controlled interaction with the essential oil. The porosity enables the oil to be held within the structure while allowing for controlled release, improving both stability and bioavailability compared to non-porous nanocarrier systems.

Inventive Principle:
Principle #31Porous materials

Solution Approach 2:

The nanoscale thickness of the montmorillonite clay layers creates a flexible yet protective barrier around the essential oil. This thin film structure provides protection against degradation while maintaining sufficient permeability for bioavailability, overcoming limitations of thicker or rigid nanocarrier systems.

Inventive Principle:
Principle #30Flexible shells and thin films

3Reliability

If conventional nanocarrier systems are used, then stability is enhanced, but scalability and economic viability of the preparation process are reduced

Engineering Contradiction:
Improvestability of essential oilsVSAvoidscalability and economic viability
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The invention modifies the montmorillonite clay through silane coupling agent treatment, changing its surface properties to enhance compatibility with essential oils. This parameter change improves encapsulation efficiency and stability while maintaining a simple, scalable preparation process that does not require complex equipment or conditions.

Inventive Principle:
Principle #35Parameter changes

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 composition enhances the stability and bioavailability of essential oils, enabling sustained release and maintaining antimicrobial activity for extended periods.

Implementation Method 1

forming a network of non-covalent bonds that encapsulate the oils within a matrix

Methodology Applied
Scientific EffectNon-covalent bonding: Van der Waals Force

Implementation Method 2

a clay having hydroxyl group present thereon bonded with a silane coupling agent

Methodology Applied
Scientific EffectChemical bonding: Chemical Bonding

Data Source

PatentUS20250268247A1Essential oil composition
Publication Date: 2025.08.28 PEELON INC
  • US20250268247A1 patent drawing
  • US20250268247A1 patent drawing
  • US20250268247A1 patent drawing

AI summary

An essential oil composition and a process for preparing the same is disclosed. The essential oil comprising one or more essential oils, or an extract thereof homogenized with a silane modified clay. The silane modified clay comprises a clay having hydroxyl group present thereon bonded with a silane coupling agent having a chemical formula I:R—(CH2)n-(Si)—X3 wherein:R is selected from the group consisting of acryloxy, amine, or glycidyl ether,n is 2-4; andeach X is independently selected from the group consisting of CH3, C2H5, OCH3, and OC2H5.