engleski

Nitinol modified by calcium phosphate coatings prepared by sol-gel method and electrodeposition

Nitinol, the titanium-nickel alloy, has been widely used in the field of orthopedic surgery owing to its unique properties, such as shape memory effect, superelasticity, and high damping capacity. Although Nitinol possess high corrosion resistance in physiological solutions caused by the spontaneously formed passive film of TiO2, the major concern regarding its biocompatibility is release of allergenic and toxic Ni2+ ions due to in vivo corrosion. To prevent nickel dissolution, Nitinol has been modified using different surface treatments. In the present work, the Nitinol surface was modified with calcium phosphate (CaP) ceramic coatings. This method of protection combines good mechanical properties of the metallic substrate with good biocompatibility of CaP.

Nitinol; calcium phosphate; sol-gel method; electrodeposition

nije evidentirano