Engineered Collagen Scaffold Compression Gradient
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Solution Overview
Problem
Current collagen scaffolds for tissue engineering face mechanical instability due to the removal of telopeptides and natural cross-links, limiting their use in larger implants and affecting cellular viability and matrix architecture, with existing compression techniques resulting in small scaffold volumes and damaged natural architecture.
Innovation Solution
Engineered collagen compositions are created with a gradient of physical properties through controlled compression techniques, such as confined compression, to enhance mechanical properties and maintain cellular viability, allowing for optimized cellular mechanisms and responses.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If atelocollagen is used to create collagen scaffolds, then the scaffolds can be manufactured with controlled properties, but the scaffolds exhibit mechanical instability that limits their use in larger implants
Solution Approach 1:
The patent applies parameter changes by modifying the physical state and concentration of collagen through controlled compression processes. By adjusting compression parameters (pressure, duration, temperature), the collagen matrix transitions from a weak gel state to a strengthened polymeric state, achieving mechanical stability while preserving the controlled properties enabled by atelocollagen manufacturing.
Solution Approach 2:
The patent creates composite materials by combining atelocollagen with cross-linking agents or other materials to form a hybrid structure. This composite approach maintains the manufacturing advantages of atelocollagen while adding mechanical strength through the cross-linked network, resolving the instability issue without sacrificing ease of manufacture.
2Strength
If compression processes are applied to atelocollagen to increase mechanical properties, then the scaffolds hold their shape better, but the compression processes reduce cellular viability and damage the natural matrix architecture
Solution Approach 1:
The patent employs periodic action by applying compression in controlled cycles rather than continuous extreme compression. The compression is applied periodically with specific duration and intensity parameters, allowing the collagen matrix to strengthen while minimizing damage to cellular structures and maintaining viability. This periodic approach enables mechanical property enhancement without the harmful effects of prolonged extreme compression.
Solution Approach 2:
The patent uses parameter changes by carefully controlling compression parameters (pressure, time, temperature) to achieve the minimum necessary compression for strength enhancement. By optimizing these parameters, the process strengthens the scaffold while avoiding excessive compression that would damage cellular architecture and reduce viability.
3Strength
If extreme compression is applied to atelocollagen, then the scaffolds achieve higher mechanical properties, but the final scaffold volume is reduced to less than 100 μL
Solution Approach 1:
The patent applies partial action by using moderate compression rather than extreme compression. This partial compression is sufficient to achieve the desired mechanical property enhancement while preserving the majority of the scaffold volume. The compression is optimized to provide the necessary strengthening effect without the excessive compression that would reduce volume to less than 100 μL.
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 engineered collagen compositions exhibit improved mechanical strength, resistance to degradation, and controlled mechanical properties, enabling larger scaffold volumes and maintaining cellular viability, thus enhancing tissue repair and replacement capabilities.
Implementation Method 1
the collagen composition is compressed to form a gradient of at least one physical property
Data Source
AI summary
The present disclosure provides an engineered collagen composition comprising collagen, wherein the collagen composition is compressed to form a gradient of at least one physical property. Methods of using and of manufacturing the engineered collagen compositions of the present disclosure are also provided.