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Composite Scaffolds of Interfacial Polyelectrolyte Fibers for Temporally Controlled Release of Biomolecules
Published on: August 19, 2015
Siloxane-poly(lactic acid)-vaterite composites with 3D cotton-like structure
Toshihiro Kasuga1, Akiko Obata, Hirotaka Maeda
1Department of Frontier Materials, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya 466-8555, Japan. kasuga.toshihiro@nitech.ac.jp
Journal of Materials Science. Materials in Medicine
|March 15, 2012
Summary
A novel 3D cotton-like composite material, SiPVH, was developed for bone regeneration. This material gradually releases calcium and silicate ions, promoting osteoblast activity and cellular migration for enhanced bone healing.
Area of Science:
- Biomaterials Science
- Tissue Engineering
- Orthopedic Research
Background:
- Ionic calcium and silicon species stimulate bone cell activity.
- Previous siloxane-poly(lactic acid)-vaterite hybrid-composites (SiPVH) showed gradual ion release.
- A 3D structure is desirable for bone filling applications.
Purpose of the Study:
- To develop a 3D cotton-like SiPVH material for bone regeneration.
- To optimize the material for cellular migration and bioactivity.
- To evaluate the material's performance in bone cell culture.
Main Methods:
- Electrospinning was used to create a 3D cotton-like SiPVH structure with ~10 μm fiber diameter.
- The material was surface-coated with calcium and phosphate particles via alternate soaking.
- Cell culture studies using murine osteoblast-like MC3T3-E1 cells were performed.
Main Results:
- The cotton-like SiPVH exhibited excellent flexibility and ease of handling.
- The surface modification led to gradual release of calcium and silicate ions.
- Significant cellular migration into the 3D structure was observed in vitro.
Conclusions:
- The developed 3D cotton-like SiPVH demonstrates promising bioactivity for bone regeneration.
- The material's structure and ion release profile support osteoblast function and migration.
- This composite holds potential for use in bone filling surgical procedures.
