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A Facile and Eco-friendly Route to Fabricate Poly(Lactic Acid) Scaffolds with Graded Pore Size
Published on: October 17, 2016
Novel scaffold design with multi-grooved PLA fibers
Sangwon Chung1, Mike P Gamcsik, Martin W King
1Fiber and Polymer Science, North Carolina State University, Raleigh, NC, USA.
Biomedical Materials (Bristol, England)
|May 27, 2011
Summary
This study introduces a novel polylactide (PLA) nonwoven scaffold with grooved fibers, demonstrating superior cell attachment and proliferation for tissue engineering applications. The unique fiber structure enhances material properties and cell viability.
Area of Science:
- Biomaterials Science
- Tissue Engineering
- Polymer Science
Background:
- Developing advanced scaffold materials is crucial for improving cell attachment and proliferation in tissue engineering.
- Traditional polylactide (PLA) scaffolds often have limitations in surface area and cell interaction.
Purpose of the Study:
- To develop and evaluate a novel nonwoven textile scaffold using PLA multigrooved fibers.
- To assess the potential of these grooved fiber scaffolds for enhanced cell attachment and proliferation compared to traditional round fiber scaffolds.
Main Methods:
- Fabrication of PLA nonwoven scaffolds with multigrooved fibers using a bi-component spinning system.
- Characterization of fiber structure and material properties using Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), and X-ray photon spectroscopy (XPS).
- Evaluation of NIH 3T3 fibroblast attachment and proliferation on grooved and round fiber scaffolds over 12 days using MTT viability assay and SEM.
Main Results:
- The novel PLA scaffolds featured multigrooved fibers with a significantly larger surface area.
- Grooved fiber scaffolds exhibited enhanced wettability, flexibility, and tensile properties compared to round fiber scaffolds.
- Superior initial cellular attachment and proliferation of NIH 3T3 fibroblasts were observed on the grooved fiber scaffolds (p < 0.01).
Conclusions:
- PLA nonwoven scaffolds with multigrooved fibers represent a promising alternative matrix for cell culture.
- The enhanced surface area and properties of grooved fibers promote superior cell attachment and proliferation.
- Modulating groove dimensions offers potential for tailoring scaffolds for various cell types.
