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Updated: Jul 20, 2026
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Expansion of Two-dimension Electrospun Nanofiber Mats into Three-dimension Scaffolds
Published on: January 7, 2019
Highly porous 3D nanofiber scaffold using an electrospinning technique
1Bio-mechatronics Laboratory, Department of Future Technology, Korea Institute of Machinery and Materials, Yuseong-Gu, Daejeon, Korea. gkim@kimm.re.kr
Summary
This study developed a novel porous scaffold using electrospinning with a blowing agent, enhancing tissue engineering. The resulting poly(epsilon-caprolactone) nanofiber webs show improved porosity and cell adhesion for better tissue regeneration.
Area of Science:
- Biomaterials Science
- Tissue Engineering
- Nanotechnology
Background:
- Successful 3D tissue-engineering scaffolds require high porosity and mechanical stability for cell growth and nutrient exchange.
- Optimized pore size is crucial for cell accommodation, migration, and vascularization within scaffolds.
Purpose of the Study:
- To develop and characterize electrospun poly(epsilon-caprolactone) (PCL) nanofiber scaffolds with enhanced porosity using a chemical blowing agent (BA).
- To evaluate the effect of the BA on the electrospinning process and the resulting scaffold's physical and mechanical properties.
- To assess the biocompatibility and cell adhesion of the novel scaffold using human dermal fibroblasts.
Main Methods:
- Poly(epsilon-caprolactone) fibers were electrospun utilizing an auxiliary electrode and a chemical blowing agent.
- Scaffolds were characterized for porosity, pore size distribution, and mechanical properties (tensile strength).
- Human dermal fibroblast cell adhesion and growth were evaluated on the blown nanofiber webs compared to conventional electrospun mats.
Main Results:
- The addition of a chemical blowing agent significantly increased the porosity and pore size of the electrospun PCL scaffolds.
- The blown nanofiber webs exhibited improved tensile properties and enhanced adhesion of human dermal fibroblasts.
- The blowing agent improved the electrospinning processability for creating porous scaffolds.
Conclusions:
- Electrospinning PCL with a chemical blowing agent is an effective method for producing highly porous nanofiber scaffolds.
- These novel scaffolds demonstrate superior mechanical properties and enhanced cell adhesion, making them promising for 3D tissue engineering applications.
- The developed scaffold facilitates cell growth and nutrient exchange, crucial for regenerative medicine.
