Polymeric Delivery System for Reactive Hydroxyl Compounds

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Solution Overview

Problem

The limited bioavailability of phenolic and polyphenolic compounds due to poor absorption, rapid metabolism, and rapid systemic elimination hinders their therapeutic and practical applications, despite their proven efficacy and safety as anti-inflammatory, antioxidant, and antiangiogenic agents.

Innovation Solution

A delivery system comprising a polymer compound with reactive hydroxyl-containing compounds linked to acrylate molecules and amine linkers, which can be triggered to release the compounds, allowing for immediate or timed release, enhancing bioavailability and effectiveness.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If phenolic and polyphenolic compounds are administered as free compounds, then they provide anti-inflammatory, antioxidant, and antiangiogenic effects, but they suffer from poor absorption, rapid metabolism, and rapid systemic elimination

Engineering Contradiction:

Improvetherapeutic efficacyVSAvoidbioavailability

Core Design Contradiction:

ReliabilityVSDuration of action of moving object

Solution Approach 1:

The phenolic and polyphenolic compounds are pre-conjugated to polymeric carriers before administration. This preliminary modification protects the compounds from rapid metabolism and elimination, while the carrier system ensures sustained release and improved bioavailability. The conjugation is performed in advance to create a delivery system that maintains compound stability until reaching the target.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

Polymeric carriers act as intermediaries between the phenolic/polyphenolic compounds and the biological system. These carriers protect the compounds from rapid metabolism and elimination, facilitate absorption, and enable sustained delivery to target tissues. The carrier serves as a mediator that enhances the pharmacokinetic properties of the active compounds.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Duration of action of moving object

If phenolic and polyphenolic compounds are conjugated to polymers, then bioavailability and therapeutic efficacy are improved, but the complexity of the delivery system increases

Engineering Contradiction:

ImprovebioavailabilityVSAvoiddelivery system complexity

Core Design Contradiction:

Duration of action of moving objectVSDevice complexity

Solution Approach 1:

The delivery system is segmented into modular components: polymeric carriers, conjugation linkers, and the active phenolic/polyphenolic compounds. This segmentation allows for independent optimization of each component and simplifies the overall system design. The modular approach reduces complexity by enabling separate synthesis and assembly of functional units.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The molecular weight, composition, and structure of the polymeric carriers are carefully controlled and optimized to achieve the desired balance between protection, absorption, and release characteristics. By adjusting parameters such as polymer molecular weight, hydrophilicity, and crosslinking density, the system achieves improved bioavailability without excessive complexity.

Inventive Principle:

Principle #35Parameter changes

3Reliability

If phenolic and polyphenolic compounds are administered, then antioxidant activity is provided, but absorption is poor and systemic elimination is rapid

Engineering Contradiction:

Improveantioxidant activityVSAvoidsystemic concentration

Core Design Contradiction:

ReliabilityVSQuantity of substance

Solution Approach 1:

The polymeric carrier system enables continuous and sustained release of phenolic and polyphenolic compounds to target tissues. This continuous delivery maintains adequate antioxidant activity over extended periods, overcoming the rapid elimination that occurs with free compounds. The carrier system ensures persistent presence of active compounds in the biological system.

Inventive Principle:

Principle #20Continuity of useful action

Solution Approach 2:

The delivery system achieves localized accumulation of phenolic and polyphenolic compounds at target tissues while minimizing systemic distribution. The polymeric carriers facilitate targeted delivery to specific locations such as inflamed tissues or tumors, providing high local antioxidant activity without requiring high systemic concentrations that would be subject to rapid elimination.

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 system effectively prolongs the bioavailability and therapeutic efficacy of phenolic and polyphenolic compounds by controlled release, overcoming limitations of absorption and metabolism, and providing sustained delivery and antioxidant activity.

Implementation Method 1

exposing the delivery composition to a trigger which reacts with the polymer to release the reactive hydroxyl-containing compound from the delivery composition

Methodology Applied

Scientific EffectTriggered degradation:

Data Source

PatentUS20250009892A1Delivery systems and methods for reactive hydroxyl-containing compounds

Publication Date: 2025.01.09 UNIVERSITY OF KENTUCKY RESEARCH FOUNDATION

AI summary

Disclosed are methods for delivering a reactive hydroxyl compound, systems comprising a delivery composition comprising a reactive hydroxyl compound and a trigger, and kits which incorporate a reactive hydroxyl compound and a trigger.