Polyphenol-Coated Lipid Nanoparticles for Transdermal Delivery

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Solution Overview

Problem

Existing transdermal delivery systems face challenges in effectively penetrating the stratum corneum, leading to low delivery efficiency of biologically active ingredients such as whitening, wrinkle improvement, and antioxidation agents.

Innovation Solution

The development of lipid nanoparticles surface-modified with polyphenols, specifically tannic acid, which strongly bind to the extracellular matrix and cell surface proteins through hydrogen bonding, enhancing the transdermal absorption of active ingredients.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If nanocarriers such as polymer micelles and nanoemulsions are used to reduce particle size and enhance stability, then the stability of the delivery system is improved, but the ability to pass through the stratum corneum deteriorates

Engineering Contradiction:

ImprovestabilityVSAvoiddelivery efficiency

Core Design Contradiction:

Stability of the object's compositionVSReliability

Solution Approach 1:

The patent modifies the surface properties of lipid nanoparticles by coating with polyphenols, changing the chemical composition and surface characteristics to enable strong binding to the stratum corneum while maintaining nanoparticle stability and size

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The invention creates a composite structure by combining lipid nanoparticles with polyphenol coatings, integrating the stability benefits of lipid-based carriers with the adhesion properties of polyphenols to achieve both stability and effective stratum corneum penetration

Inventive Principle:

Principle #40Composite materials

2Reliability

If ethosomes or transfersomes with surfactants are used to enhance transdermal efficiency, then the penetration capability is improved, but skin irritation increases

Engineering Contradiction:

Improvetransdermal efficiencyVSAvoidskin irritation

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent uses polyphenol coating to modify the surface properties of lipid nanoparticles, creating a natural coating that provides adhesion to the stratum corneum without the harsh surfactants found in ethosomes and transfersomes, thereby maintaining penetration efficiency while reducing skin irritation

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The polyphenol coating acts as a biocompatible, naturally-derived surface modification that provides sufficient adhesion function without requiring the complex surfactant systems used in other transdermal delivery systems, reducing potential harmful effects

Inventive Principle:

Principle #27Cheap short-living objects (Disposable)

3Ease of manufacture

If conventional transdermal delivery systems are used without surface modification, then the manufacturing process is simple, but the binding to extracellular matrix and cell surface proteins is weak

Engineering Contradiction:

Improvemanufacturing simplicityVSAvoidbinding strength

Core Design Contradiction:

Ease of manufactureVSReliability

Solution Approach 1:

The patent applies polyphenol coating to the surface of lipid nanoparticles during the manufacturing process, preparing the particles in advance with adhesion-promoting properties that enable strong binding to extracellular matrix and cell surface proteins through hydrogen bonding

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The polyphenol coating acts as an intermediary layer between the lipid nanoparticle core and the biological environment, providing hydrogen bonding capabilities that facilitate strong interaction with extracellular matrix and cell surface proteins without complicating the overall manufacturing process

Inventive Principle:

Principle #24Intermediary (Mediator)

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 use of polyphenol-modified lipid nanoparticles significantly improves the transdermal absorption of biologically active ingredients, increasing delivery efficiency and maximizing the overall effect without skin irritation.

Implementation Method 1

the strong binding of polyphenols, attached to the surface of the lipid nanoparticles, to the extracellular matrix and cell surface proteins through hydrogen bonding

Methodology Applied

Scientific EffectHydrogen bonding: Chemical Bonding

Data Source

PatentUS20250073138A1Lipid-based nanoparticles for enhancing percutaneous absorption and manufacturing method thereof

Publication Date: 2025.03.06 COSMECCA KOREA CO LTD

AI summary

The present invention relates to a lipid-based nanoparticle composition for enhancing transdermal absorption and a method of preparing the same. The present invention provides a carrier for enhancing transdermal absorption that enhances or promotes chemical bonding with skin tissue by modifying the surface of lipid nanoparticles with a polyphenol. This may demonstrate the synergistic effect of active and passive transdermal delivery systems.