| About this Abstract |
| Meeting |
MS&T22: Materials Science & Technology
|
| Symposium
|
Society for Biomaterials: Biomaterial Applications
|
| Presentation Title |
Silver Doped Titanium Oxide Layers for Improved Photocatalytic Activity and Potential Antibacterial Properties of Titanium Implants |
| Author(s) |
Aya Ali, Amol V. Janorkar, Mary Marquart, Jason A. Griggs, Joel D. Bumgardner, Michael D. Roach |
| On-Site Speaker (Planned) |
Aya Ali |
| Abstract Scope |
Silver is widely used as an antimicrobial agent due to its efficiency against resistant bacteria. This study hypothesized that silver doping titanium anodization oxide layers results in enhanced photocatalytic activity (PCA) and potentially improved antimicrobial activity. Three acid-based electrolytes previously shown to form crystalline titanium oxide layers exhibiting excellent PCA, were utilized with and without AgNO3 additions to anodize CPTi specimens to 180V final forming voltage. X-ray photoelectron spectroscopy revealed silver incorporation into each AgNO3 oxide group. The surface morphology, crystallinity, surface chemistry, and wettability of each oxide were investigated. PCA was also evaluated using a methylene blue degradation assay under 365nm UVA illumination. Two AgNO3 oxides showed increased rutile phase formation within the oxides compared to their counterparts produced in the same electrolytes without AgNO3 additions. T-tests revealed the same two AgNO3 oxides also showed significantly enhanced PCA after 240 minutes compared to their non-AgNO3 counterparts (p< 0.05). |