Biocompatible implants made of nanostructured titanium with antibacterial properties

An implant that comprises a titanium coating deposited on a substrate, wherein:

• the substrate comprises a biomaterial with a root mean square roughness lower than 5 nm on a surface area of 4 μm2,
• the coating has a purity greater than 95% and comprises nanostructured titanium formed by metallic titanium and a titanium oxide layer, and
• the nanostructured titanium has a nanocolumnar form, wherein the diameter of the nanocolumns ranges between 30 and 100 nm, the height ranges between 100 and 300 nanometres, and the space between the nanocolumns ranges between 50 and 150 nanometres, with a nanocolumn tilt angle with respect to the vertical of the substrate ranging between 0° and 30°.