Microstructural Characterization of Biofunctionalized Titanium Foams

Effect of bio-functional MAO layers on the electrochemical behaviour of highly porous Ti

“…After MAO treatment, HAP may be precipitated by a hydrothermal treatment, which is reported to improve the bioactivity [28][29][30][37][38][39][40]. Nevertheless, the studies on the bio-functionalization of highly porous Ti surfaces by anodic treatment are still very limited [3,20,41,42]. Yavari et al [20] studied the effect of alkali-acid heat and acid-alkali treatments on compression and fatigue behaviour of porous Ti6Al4V alloy processed by selective laser melting.…”

Tribocorrosion behavior of bio-functionalized highly porous titanium

“…In addition to hard coatings, surface modifications are also being applied in order to improve the wear resistance of Ti (Hu and Lim, 2010;Wood, 2007;Alves et al, 2013). Among these surface modification techniques, anodic treatment not only leads to better corrosion and tribocorrosion resistance through the formation of porous titanium oxide layers, but also improves the interaction of the implant surface with host tissue by tailoring Ti surfaces in terms of topography, porosity, and composition leading to a better osteointegration (Alves et al, 2013;Szesz et al, 2013;Teixeira et al, 2015;Fazel et al, 2015). The technique also allows to incorporate Ca and P with a similar Ca/P ratio to hydroxyapatite (HA) which afterwards can be precipitated as crystals by hydrothermal treatment that leads to increase the bioactivity (Benea et al, 2014).…”

“…The technique also allows to incorporate Ca and P with a similar Ca/P ratio to hydroxyapatite (HA) which afterwards can be precipitated as crystals by hydrothermal treatment that leads to increase the bioactivity (Benea et al, 2014). There are some studies in the literature showing that it is also possible to modify highly porous Ti surfaces by anodic treatment (Amin Yavari et al, 2014;Teixeira et al, 2015;Fan et al, 2011).…”