Biologically Functional Soft Tissue Scaffolds Through Freeze-Drying
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Solution Overview
Problem
Existing methods for preparing biologically functional scaffolds lack the ability to maintain structural integrity and porosity while promoting cellular attachment and proliferation, particularly in soft tissue repair and regeneration.
Innovation Solution
The method involves dispersing soft tissues at controlled temperatures between 0-50°C, optionally combining multiple types, and freezing or freeze-drying to create a porous, coherent scaffold that maintains porosity and integrity, facilitating cellular interaction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If soft tissue is dispersed at controlled temperatures and freeze-dried to create porous scaffold, then porosity and structural integrity are improved, but manufacturing complexity increases
Solution Approach 1:
The patent applies parameter changes by controlling the temperature during dispersion (0-50°C) and utilizing freeze-drying processes to transform the physical state of soft tissue, creating a porous scaffold structure with improved structural integrity and porosity while maintaining biological functionality
Solution Approach 2:
The patent utilizes phase transitions through freeze-drying, where the soft tissue undergoes freezing and sublimation to form a porous scaffold structure, enabling the creation of a coherent framework with controlled porosity that supports cellular attachment and tissue regeneration
2Reliability
If soft tissue is dispersed and freeze-dried to maintain porosity, then cellular attachment is promoted, but loss of substance occurs
Solution Approach 1:
The patent creates a porous scaffold structure through freeze-drying that maintains porosity while providing a coherent framework for cellular attachment. The porous structure allows cell infiltration and tissue regeneration without requiring additional crosslinkers or carriers, thus avoiding substance loss while maintaining biological functionality
Solution Approach 2:
The soft tissue scaffold serves itself by utilizing its own structural components to form the porous framework. The natural extracellular matrix and collagen fibers in the soft tissue provide the structural support and porosity needed for cellular attachment, eliminating the need for additional substances or crosslinkers
Data Source
AI summary
The invention relates to biologically functional scaffolds having a porous structure, methods of preparing, and methods of use thereof. The invention also relates to methods of repairing a defect, methods of culturing cells and promoting differentiation of stem cells using the same.