Bio-Physical Properties of Acetylated Chitosan/Poly(ɛ-Caprolactone) Composites for Three-Dimensional Printing
1Department of Chemical Engineering, College of Engineering, Dankook University, Yongin-si, Republic of Korea.
3D Printing and Additive Manufacturing
|October 27, 2023
Summary
Acetylated chitosan (AC)/poly(ɛ-caprolactone) (PCL) composites enhance cell adhesion and proliferation for 3D printing in tissue engineering. The optimal AC/PCL composite composition was determined to be 10.7 wt% AC.
Area of Science:
- Biomaterials Science
- Tissue Engineering
- Polymer Chemistry
Background:
- Chitosan and poly(ɛ-caprolactone) (PCL) are widely used biomaterials.
- Developing advanced composite materials is crucial for 3D printing in tissue engineering.
Purpose of the Study:
- To prepare and characterize acetylated chitosan (AC)/PCL composites for 3D printing applications.
- To evaluate the physiochemical, mechanical, and biological properties of AC/PCL composites.
Main Methods:
- Melt mixing method for AC/PCL composite preparation.
- Physiochemical analysis: water contact angle, SEM, thermal stability.
- Mechanical testing: tensile strength, bending stress recovery.
- Biological evaluation: NIH-3T3 fibroblast cell adhesion and proliferation assays.
Main Results:
- AC/PCL composites exhibited comparable melting points and tensile strengths to pure PCL.
- High initial cell adhesion and increased cell proliferation were observed for AC/PCL composites compared to PCL.
- Optimal AC composition for AC/PCL composites was identified as 10.7 wt%.
Conclusions:
- AC/PCL composites demonstrate promising biocompatibility and mechanical properties.
- The developed AC/PCL composites are suitable for 3D printing applications in tissue engineering.
- The optimal AC content enhances cellular interaction for improved tissue regeneration.
