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Electrospun Nanofiber Scaffolds with Gradations in Fiber Organization
Published on: April 19, 2015
Electrospun PCL/PLA/HA based nanofibers as scaffold for osteoblast-like cells
Rui Fang1, Enwei Zhang, Ling Xu
1College of Engineering, Peking University, Beijing, 100871, China.
Journal of Nanoscience and Nanotechnology
|December 9, 2010
Summary
Electrospun polycaprolactone (PCL), poly (lactic acid) (PLA), and hydroxyapatite (HA) nanofiber scaffolds enhance bone regeneration. These PCL/PLA/HA materials show improved cell proliferation and mineralization for tissue engineering applications.
Area of Science:
- Biomaterials Science
- Tissue Engineering
- Nanotechnology
Background:
- Polycaprolactone (PCL), poly (lactic acid) (PLA), and hydroxyapatite (HA) are key materials in tissue engineering.
- Developing effective scaffolds is crucial for bone regeneration.
Purpose of the Study:
- To fabricate and characterize PCL/PLA/HA nanofiber mats.
- To evaluate the biological performance of these scaffolds for bone tissue engineering.
Main Methods:
- Electrospinning was used to create PCL/PLA/HA nanofiber mats with varying weight ratios.
- Fourier-transform infrared spectroscopy (FTIR) and Field Emission Scanning Electron Microscopy (FESEM) were employed for structural and morphological analysis.
- In vitro cell culture with osteoblast-like MC3T3-E1 cells was performed, including MTT assays.
Main Results:
- FTIR confirmed successful HA incorporation into PCL/PLA nanofibers.
- FESEM showed that HA introduction coarsened fiber surfaces and reduced fiber diameter (300-600 nm) compared to PCL/PLA (776 nm).
- PCL/PLA/HA scaffolds exhibited significantly higher MC3T3-E1 cell proliferation and mineralization compared to PCL/PLA scaffolds.
Conclusions:
- Electrospun PCL/PLA/HA nanofiber scaffolds demonstrate excellent biocompatibility and promote osteogenic activity.
- These scaffolds show great potential for enhancing bone regeneration in tissue engineering applications.
