Plasma sprayed rutile titania-nanosilver antibacterial coatings

- TiO2/Ag feedstock powders containing 1-10,000 ppm silver nanoparticles were double sintered and deposited by plasma spray.
- TiO2/Ag coatings were composed of pure rutile phase and homogeneously-distributed metallic silver.
- TiO2/Ag coatings with more than 10 ppm silver nanoparticles exhibited strong antibacterial activity against E. coli and S. aureus.