Double-Layered Nanofiber Scaffold for Tissue Regeneration
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing electrospun scaffolds for tissue regeneration lack design and characteristics that effectively mimic target tissues or organs, limiting their clinical application.
Innovation Solution
A double-layered tubular scaffold is developed using nanofibers, with specific conditions for electrospinning such as PCL density, solvent, and voltage, to create a scaffold that mimics the structure and properties of tubular organs like blood vessels and tracheas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If electrospun scaffolds are used to mimic natural ECM structure, then surface-to-volume ratio and cell patterning function are improved, but the design characteristics of target tissues or organs are not reflected
Solution Approach 1:
The scaffold is divided into multiple layers with distinct functions: an inner layer for cell seeding and an outer layer for structural support and tissue-specific patterning. This segmentation allows each layer to be optimized independently, enabling both high surface-to-volume ratio and tissue-specific design characteristics to coexist
Solution Approach 2:
The invention transitions from conventional 2D electrospun membranes to 3D tubular structures with multiple layers. This dimensional change enables the scaffold to replicate the complex architecture of target tissues like blood vessels, providing both high surface area and tissue-specific 3D patterning
2Ease of manufacture
If conventional scaffold designs are used, then manufacturing simplicity is maintained, but the scaffold fails to reproduce specific tissue or organ characteristics
Solution Approach 1:
The invention optimizes specific electrospinning parameters including voltage (10-30 kV), solution flow rate (0.5-2 mL/h), and collector distance (10-30 cm) to control fiber diameter, orientation, and layer formation. These parameter changes enable precise reproduction of tissue characteristics while maintaining the electrospinning manufacturing process
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 nanofiberized double-layered tubular scaffold exhibits enhanced physical properties and cell adhesion capabilities, maintaining cell functions and promoting tissue regeneration, as demonstrated in animal models.
Implementation Method 1
electronspinning nanofibers, wherein the electronspinning is characterized by the following conditions: the density of polycaprolactone (PCL) ranges from 0.1 to 50 (w/v %); the solvent is any one selected from chloroformic acid or formic acid; and the voltage ranges from 5 to 50 kV
Data Source
AI summary
The present invention relates to a tubular scaffold and a method of manufacturing the same. The tubular scaffold has physical properties matching the characteristics of a tubular organ that bends or rotates when a double layer is formed by electrospinning nanofibers, and not only has excellent cell adhesion ability but may also maintain cell functions. Also, since such effects have been proven in an animal model, the tubular scaffold may be mass-produced and used as a highly functional tubular organ having various sizes and lengths.