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Surface analysis of titanium biological modification with glow discharge
Yu-Chi Chang1, Sheng-Wei Feng1, Haw-Ming Huang2
1School of Dentistry, College of Oral Medicine, Taipei Medical University, Taipei, Taiwan.
Clinical Implant Dentistry and Related Research
|August 29, 2013
Summary
Glow discharge plasma treatment with fibronectin grafting enhances titanium surface properties. This modification increases hydrophilicity and roughness, potentially improving cell interactions for biomedical applications.
Area of Science:
- Biomaterials Science
- Surface Engineering
- Plasma Technology
Background:
- Glow discharge plasma (GDP) technology is utilized for protein grafting onto titanium surfaces.
- Previous studies have grafted proteins like albumin and collagen, but not fibronectin.
Purpose of the Study:
- To evaluate and analyze the physical properties of fibronectin-grafted titanium surfaces post-GDP treatment.
- To investigate the impact of fibronectin grafting on titanium surface characteristics.
Main Methods:
- Titanium discs were divided into groups for GDP treatment only or fibronectin grafting after GDP.
- Surface morphology (SEM), roughness, and wettability were analyzed.
- Fibronectin concentration was assessed using fluorescein isothiocyanate (FITC) labeling.
Main Results:
- Fibronectin-grafted surfaces exhibited irregular protein folding, increased hydrophilicity, and greater roughness compared to GDP-only treated surfaces.
- Storage temperature (4°C vs. 25°C) showed no significant impact on surface properties.
- A positive correlation was observed between fibronectin solution concentration and the number of fibronectin dots on the surface.
Conclusions:
- Biologically modified titanium surfaces (GDP + fibronectin) are more hydrophilic and rougher than those treated with GDP alone.
- This enhanced surface modification may promote cell adhesion, migration, proliferation, and differentiation.
