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Fabricating Superhydrophobic Polymeric Materials for Biomedical Applications
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Designing Superhydrophilic 3D Porous Surfaces on Polyetherketoneketone Surfaces to Promote Biocompatibility
Hui-Ching Lin1,2,3, Chiang-Sang Chen1,4,5, Kai-Yi Lin6
1Department of Dentistry, National Yang Ming Chiao Tung University, Taipei 112, Taiwan.
Journal of Functional Biomaterials
|March 26, 2025
Summary
Surface modifications to Polyetherketoneketone (PEKK) using combined treatments created a superhydrophilic 3D porous structure, enhancing bone implant biocompatibility for better vascularization and bone remodeling.
Area of Science:
- Biomaterials Science
- Surface Engineering
- Tissue Engineering
Background:
- Polyetherketoneketone (PEKK) offers bone-like mechanical properties but suffers from biological inertness, limiting its use in bone implants.
- Stress-shielding is reduced due to PEKK's elastic modulus matching natural bone.
Purpose of the Study:
- To engineer a superhydrophilic 3D porous PEKK surface for improved biocompatibility.
- To enhance vascularization and bone remodeling for bone tissue engineering applications.
Main Methods:
- PEKK surface modification using sandblasting, acid etching, and low-temperature atmospheric plasma cleaning.
- Characterization of surface morphology, roughness, hydrophilicity, and functional groups.
- Evaluation of cellular responses including vascularization, cell adhesion, mineralization, and osteoclast activity.
Main Results:
- A superhydrophilic 3D porous PEKK surface was successfully created via combined treatments.
- Enhanced endothelial cell tube formation, promoting vascularization.
- Improved mesenchymal stem cell adhesion and mineralization, supporting osteogenesis.
- Slightly reduced osteoclast activity, indicating potential for balanced bone remodeling.
Conclusions:
- The combined surface modification strategy effectively enhances PEKK biocompatibility.
- The modified PEKK surface shows promise for dental and orthopedic implant applications by promoting angiogenesis and osteogenesis while modulating osteoclast activity.
