TEOS thin films obtained by plasma polymerization on Ti6Al4V alloys: Influence of the deposition pressure on surface properties and cellular response

The modification of surfaces by the application thin films has been used in regenerative medicine area to increase biocompatibility metal implants. Titanium alloy recently as substrate polymerization for biomedical application. In this context, silane were obtained plasma favor sol-gel method and influence different pressures obtaining these argon was evaluated from alkoxysilane precursor tetraethoxysilane (TEOS) on Ti6Al4V alloy. morphological characterization performed AFM, Profilometry Spectral Ellipsometry chemical composition analyzed XPS. biological behavior analyzing mitochondrial activity cellular viability mesenchymal stem cells. process resulted deposition a nanometric Si-based film formed, predominantly, Si-O organosilane bonds. that applied sanded surface, with lower process, presented layer thickness wettability than nanotextured surfaces. Considering absorbance values, samples mechanically deposited at 230 µatm better cell coated polymerized film, indicating material potential