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Assessing the Functional Properties of TiZr Nanotubular Structures for Biomedical Applications, through Nano-Scratch
Maria Vardaki1, Aida Pantazi1,2, Ioana Demetrescu3,4
1Center for Surface Science and Nanotechnology, University Politehnica of Bucharest, Splaiul Independentei 313, 060042 Bucharest, Romania.
Molecules (Basel, Switzerland)
|February 12, 2021
Summary
TiZr-based nanotubular structures were created using electrochemistry. These coatings show increased roughness and decreased adhesion, suggesting potential for improved dental implants with better osseointegration and reduced bacterial adhesion.
Area of Science:
- Materials Science
- Biomaterials Engineering
- Surface Science
Background:
- Titanium (Ti) and its alloys are widely used in dental implants due to their biocompatibility and mechanical properties.
- Enhancing implant surface characteristics is crucial for improving osseointegration and reducing complications like bacterial adhesion.
- Nanostructured surfaces offer unique properties that can be tailored for biomedical applications.
Purpose of the Study:
- To investigate the functional properties of electrochemically prepared TiZr-based nanotubular structures.
- To assess the surface morphology, roughness, hardness, and adhesion characteristics of these nanostructures.
- To evaluate the potential of TiZr nanotubular coatings as an improved alternative for dental implants.
Main Methods:
- Electrochemical preparation of TiZr-based nanotubular structures using a glycerin-based electrolyte.
- Atomic Force Microscopy (AFM) for surface morphology and topography analysis.
- Nano-scratch testing to evaluate mechanical hardness and adhesion force mapping.
Main Results:
- AFM confirmed the successful formation of nanotubular coatings on TiZr.
- Surface roughness parameters (RMS and Ra) significantly increased after anodization.
- Mean adhesion force decreased, while mean scratch hardness, though lower than bulk TiZr, indicated reliable mechanical resistance.
Conclusions:
- The TiZr-based nanotubular coatings exhibit enhanced surface roughness, potentially improving osseointegration.
- The reduced adhesion force suggests a lower risk of bacterial colonization.
- These nanostructures present a promising alternative for dental implants, offering improved biological and mechanical performance.
