Metal ion release from TiN coated CoCrMo orthopedic implant material

Tribocorrosion behavior and ions release of CoCrMo alloy coated with a TiAlVCN/CN multilayer in simulated body fluid plus bovine serum albumin

“…The molybdenum ion release was significantly higher than the Co for the first measurement, within one hour of the experiment. [12,[48][49][50] in which the Co ion release is, in contrast, higher than the one for Mo and Cr could be ascribed either to the different media used in the immersion test, in this case SBF plus BSA or to the influence of the BSA content in the metal ions dissolution rate. About the BSA influence in the results obtained in the test, the adsorption of proteins can either decrease the corrosion and ion release rates, or enhance them depending on the adsorbed proteins and their interaction with the surface and the liquid medium [51].…”

Microstructure and Tribological Properties of Plasma Nitriding Cast CoCrMo Alloy

“…One is to thicken the protective oxide layer already present on the surface of metallic biomaterials via a process known as passivation [7] . Another method is to apply coatings or protective layers to increase the wear resistance and reduce the possibility of implant failure and osteolysis [8,9] . As one of the important surface strengthening processes, nitrogen ion implantation has been shown to improve wear resistance of orthopedic components such as the knee and hip replacements [10,11] .…”

Grafting titanium nitride surfaces with sodium styrene sulfonate thin films

“…To determine the Ti2p and N1s I 0 values for a clean titanium nitride surface first the thickness of the contamination layer, d Carbon , was estimated using the following equation 48 with k Carbon % 3.0 nm (Refs. 49 and 50) to be 1.3 nm: (2). Finally, the thickness of the MPS layer could be determined using Eq.…”

“…[1][2][3][4][5] Although titanium nitride is sufficiently bioinert to allow direct apposition to tissue when placed in the body, a robust implant-tissue interface will not be developed unless the material has the ability to guide initial cellular reactions at the implant site. In general, titanium implants can induce the formation of a fibrous layer that compromises bonding at the interface with the living tissue.…”