Related Experiment Video
Updated: May 1, 2026
09:56
Fabrication of Mechanically Tunable and Bioactive Metal Scaffolds for Biomedical Applications
Published on: December 8, 2015
10.3K
Durability evaluation of biopolymer coating on titanium alloy substrate
J Ryan Stanfield1, Stacy Bamberg1
1Departments of Mechanical Engineering and Bioengineering, University of Utah, 50 S Central Campus Dr., Salt Lake City, UT 84112, USA.
Journal of the Mechanical Behavior of Biomedical Materials
|April 15, 2014
Summary
Optimizing phosphorylcholine (PC) coating on titanium (Ti6Al4V ELI) involves controlling factors like cure temperature and dip rate. This process enhances coating durability and cross-linking for improved material performance.
Area of Science:
- Biomaterials Science
- Surface Chemistry
- Materials Engineering
Background:
- Titanium alloys (Ti6Al4V ELI) are widely used in biomedical implants.
- Improving the biocompatibility and performance of titanium surfaces is crucial.
- Phosphorylcholine (PC) polymers offer excellent biocompatibility and fouling resistance.
Purpose of the Study:
- To optimize the immobilization process of phosphorylcholine (PC) polymer on Ti6Al4V ELI.
- To identify key process factors influencing PC coating characteristics.
- To enhance the durability and cross-linking of PC coatings on titanium.
Main Methods:
- A multivariate experimental design was used to analyze seven process factors.
- RFGD plasma treatment was applied to the titanium substrate.
- Fluorescence microscopy (FM), spray testing, and IPA extraction were used for analysis.
- Optimization of PC-immobilization process factors was evaluated.
Main Results:
- Uniform coverage of PC polymer was confirmed on the titanium substrate.
- PC solution concentration did not impact fouling resistance.
- PC solution concentration, dip rate, and cure temperature significantly affected coating durability and cross-linking.
- Oxygen plasma treatment enhanced the degree of polymer cross-linking.
Conclusions:
- The PC-immobilization process on Ti6Al4V ELI can be optimized for enhanced coating durability and cross-linking.
- Key parameters for optimization include PC solution concentration, dip rate, and cure temperature.
- Plasma treatment is effective in improving the cross-linking of PC surfaces.
