Prevent biofilm formation using TiO2 nanotubes on the Ti-30Ta alloy for biomedical application. abstract created on Wednesday September 30, 2015

Abstract

Event Abstract Back to Event Prevent biofilm formation using TiO2 nanotubes on the Ti-30Ta alloy for biomedical application. abstract created on Wednesday September 30, 2015 Patricia Capellato1, Ana Paula R. Alves Claro2 and Cecilia A De C Zavaglia1 1 Unicamp, Department of Mechanical Engineering, Brazil 2 Unesp, Department of Materials and Technology, Brazil The nanotubes of TiO2 have been shown to play important rules on biofilme formatin. Infection is a problem in biomedical field that leading to implant failure.In this study, the self-ordered formation of nanotubular oxide layers on Ti–30Ta was investigated in order to reducing infection.The anodization process was realized in an electrolyte solution containing 0.2M NH4F at 30V for 6 hours]. The nanotube layer was annealed in an oxygen ambient furnace at 530 ºC (5º C/min) for 1 hour. The Ti-30Ta alloy surface were investigated using scanning electron microscopy (SEM) and and X-ray diffractometer (XRD). Staphylococcus aureaus and candida albicans were selected to investigate the bacterial adhesion and biofilm formation. The results indicated that the bacterial response was highly influenced by anodization process on Ti-30Ta alloy with TiO2 nanotube fabrication. Fapesp; Cnpq; Unesp; Unicamp; INct