Related Experiment Video
Updated: Dec 15, 2025
06:14
Expansion of Two-dimension Electrospun Nanofiber Mats into Three-dimension Scaffolds
Published on: January 7, 2019
7.2K
Decorating 3D Printed Scaffolds with Electrospun Nanofiber Segments for Tissue Engineering.
Ruiquan Li1, Alec McCarthy1, Yu Shrike Zhang2
1Department of Surgery-Transplant and Holland Regenerative Medicine Program, University of Nebraska Medical Center, Omaha, NE, 68130, USA.
Advanced Biosystems
|July 11, 2020
Summary
Combining 3D printing and electrospinning creates advanced tissue engineering scaffolds. These enhanced scaffolds improve cell adhesion, proliferation, and osteogenic differentiation for bone repair.
Area of Science:
- Biomaterials Science
- Tissue Engineering
- Regenerative Medicine
Background:
- Large tissue defects pose clinical challenges due to donor scarcity and immune rejection.
- 3D printed scaffolds offer structural control but lack biomimetic nanotopography and biomolecule presentation.
- Existing scaffolds have limited efficacy in regulating cellular responses for tissue regeneration.
Purpose of the Study:
- To develop a facile method for enhancing 3D printed scaffolds using electrospun nanofibers.
- To improve the biomimetic surface properties and biomolecule presentation capacity of 3D printed scaffolds.
- To evaluate the impact of surface modification on cell behavior and osteogenic differentiation.
Main Methods:
- Coating 3D printed scaffolds with electrospun nanofiber segments.
- Characterizing surface morphology, mechanical properties, pore size, and porosity of modified scaffolds.
- Assessing pre-osteoblast and bone marrow mesenchymal stem cell (BMSC) adhesion and proliferation.
- Immobilizing bone morphogenetic protein-2 mimicking peptides and evaluating osteogenic marker gene expression in BMSCs.
Main Results:
- Modified scaffolds exhibited a biomimetic nanofibrous surface without compromising bulk properties.
- Enhanced adhesion and proliferation of pre-osteoblasts and BMSCs on nanofiber-decorated scaffolds.
- Immobilized peptides significantly boosted osteogenic differentiation of BMSCs, evidenced by increased Runx2, Alp, OCN, and BSP mRNA expression.
Conclusions:
- The combination of 3D printing and electrospinning effectively enhances scaffold functionality.
- Surface modification with nanofibers and biomolecules improves cellular responses for tissue engineering.
- This hybrid approach shows significant promise for advancing bone tissue regeneration strategies.
