Collagen Mimetic Peptides for Non-Toxic Tissue Engineering

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Solution Overview

Problem

Current methods for modifying collagen to enhance tissue regeneration and healing are limited by toxic chemical reactions and difficulty in controlling these processes, which hinders the development of biocompatible materials that can actively regulate cell differentiation and tissue organization.

Innovation Solution

The use of collagen mimetic peptides (CMPs) to physically interact with collagen, allowing for the modification of collagen's properties by conjugating peptides such as antibiotics, growth factors, or polymers, thereby altering its adhesiveness and functionality without the need for toxic chemical modifications.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If chemical modification methods are used to conjugate exogenous functionalities to collagen, then the functionality of collagen can be enhanced, but the process becomes toxic and difficult to control

Engineering Contradiction:

Improvefunctionality enhancementVSAvoidtoxicity

Core Design Contradiction:

Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

The patent introduces collagen mimetic peptides as intermediary molecules that physically interact with collagen through non-covalent binding. These peptides serve as mediators to conjugate exogenous functionalities (antibiotics, growth factors, polymers) to collagen without requiring direct chemical modification of the collagen molecule itself, thereby eliminating toxicity while maintaining functionality enhancement

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent replaces the chemical modification system with a physical interaction system. Instead of using chemical reactions to conjugate functionalities to collagen, the invention uses physical binding between collagen mimetic peptides and collagen, substituting chemical processes with physical/biological processes that are non-toxic and controllable

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Adaptability or versatility

If chemical modification methods are used to conjugate exogenous functionalities to collagen, then the functionality of collagen can be enhanced, but the control of the modification process becomes difficult

Engineering Contradiction:

Improvefunctionality enhancementVSAvoidprocess control

Core Design Contradiction:

Adaptability or versatilityVSManufacturing precision

Solution Approach 1:

The collagen mimetic peptides act as controllable intermediaries with defined binding characteristics. The physical interaction between these peptides and collagen can be precisely controlled through parameters such as peptide concentration, temperature, and pH, allowing manufacturing precision to be maintained while achieving functionality enhancement

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent utilizes parameter changes (temperature, pH, ionic strength) to control the physical interaction between collagen mimetic peptides and collagen. By adjusting these parameters, the modification process can be precisely controlled to achieve desired functionality enhancement without the uncontrolled side reactions associated with chemical modification

Inventive Principle:

Principle #35Parameter changes

3Reliability

If traditional chemical modification is used, then collagen can be modified to promote tissue regeneration, but the complexity of controlling chemical reactions increases

Engineering Contradiction:

Improvetissue regeneration capabilityVSAvoidreaction control complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The collagen mimetic peptides simplify the system by serving as pre-designed intermediaries that naturally bind to collagen. This eliminates the need to control complex chemical reactions between exogenous functionalities and collagen, reducing system complexity while maintaining reliable tissue regeneration capability through the controlled physical interaction

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent uses collagen mimetic peptides that copy the essential binding characteristics of native collagen interactions. These simplified peptide models replicate the functional aspects of collagen without the complexity of the full collagen structure, allowing controlled modification while maintaining tissue regeneration reliability

Inventive Principle:

Principle #26Copying

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 enables the creation of modified collagen with enhanced properties for tissue engineering, wound healing, and diagnostic applications, such as promoting cell adhesion, proliferation, and tissue repair while avoiding the toxicity issues associated with traditional chemical modifications.

Implementation Method 1

contacting collagen with a collagen mimetic peptide, under conditions that provide for a physical interaction between the collagen and the collagen mimetic peptide

Methodology Applied

Scientific EffectPhysical interaction: Absorption (physical)

Data Source

PatentUS8283414B2Compositions comprising modified collagen and uses therefor

Publication Date: 2012.10.09 JOHNS HOPKINS UNIVERSITY

AI summary

The invention provides modified collagen and related therapeutic and diagnostic methods.