@prefix prodottidellaricerca: . @prefix istituto: . @prefix prodotto: . istituto:CDS073 prodottidellaricerca:prodotto prodotto:ID180049 . @prefix pubblicazioni: . @prefix unitaDiPersonaleInterno: . unitaDiPersonaleInterno:MATRICOLA10499 pubblicazioni:autoreCNRDi prodotto:ID180049 . unitaDiPersonaleInterno:MATRICOLA2699 pubblicazioni:autoreCNRDi prodotto:ID180049 . @prefix rdf: . @prefix retescientifica: . prodotto:ID180049 rdf:type retescientifica:ProdottoDellaRicerca , prodotto:TIPO1101 . @prefix rdfs: . prodotto:ID180049 rdfs:label "Surface treatment on an implant cobalt alloy for high biocompatibility and wear resistance (Articolo in rivista)"@en . @prefix xsd: . prodotto:ID180049 pubblicazioni:anno "2005-01-01T00:00:00+01:00"^^xsd:gYear ; pubblicazioni:doi "10.1016/j.wear.2005.02.011"^^xsd:string . @prefix skos: . prodotto:ID180049 skos:altLabel "
Spriano S; Verne E; Faga MG; Bugliosi S; Maina C (2005)
Surface treatment on an implant cobalt alloy for high biocompatibility and wear resistance
in Wear ( Print)
"^^rdf:HTML ; pubblicazioni:autori "Spriano S; Verne E; Faga MG; Bugliosi S; Maina C"^^xsd:string ; pubblicazioni:paginaInizio "919"^^xsd:string ; pubblicazioni:paginaFine "925"^^xsd:string ; pubblicazioni:url "http://www.sciencedirect.com/science/article/pii/S0043164805001195"^^xsd:string ; pubblicazioni:numeroVolume "259"^^xsd:string . @prefix ns10: . prodotto:ID180049 pubblicazioni:rivista ns10:ID574892 ; pubblicazioni:numeroFascicolo "7-12"^^xsd:string ; skos:note "ISI Web of Science (WOS)"^^xsd:string ; pubblicazioni:affiliazioni "Politecn Torino, Dipartimento Sci Mat & Ingn Chim, I-10129 Turin, Italy \nCNR, Ist Sci & Tecnol Mat Ceramici, I-10135 Turin, Italy \nUniv Turin, Dipartimento Traumatol Ortoped & Med Lavoro, I-10126 Turin, Italy"^^xsd:string ; pubblicazioni:titolo "Surface treatment on an implant cobalt alloy for high biocompatibility and wear resistance"^^xsd:string ; prodottidellaricerca:abstract "Total hip prostheses are implanted to younger and more active patients, so the open problem is to create implants which will enhance the implant survivorship and will offer greater longevity. From this point of view, metal-on-metal arthroprostheses are well performing. The volume of periprosthetic inflammatory tissues appears to be less than with metal-on-UHMPWE, however osteolysis often occurs and it is known that the levels of metal ions in the blood and urine are elevated in patients with metal-on-metal bearing. The aim of this research activity was the synthesis and characterization of surface modified cobalt alloys, in order to obtain a biocompatible material presenting at the same time good wear performances, low metal ion release and low toxicity. \nThe surface chemical composition of an implant cobalt alloy (Biodur) was modified, producing relevant tantalum enrichment. Tantalum was chosen because of its low toxicity and high corrosion resistance. The chemical composition, morphology, roughness, crystallographic structure and wettability of the surface, as well as the interface of the modified layer with the substrate, were characterized. The mechanical behavior of the modified materials was investigated by scratch and pin-on-disc wear tests. The metal ion release of the modified surfaces was measured by in vitro experiments after wear tests. (c) 2005 Elsevier B.V. All rights reserved."@en ; prodottidellaricerca:prodottoDi istituto:CDS073 ; pubblicazioni:autoreCNR unitaDiPersonaleInterno:MATRICOLA10499 , unitaDiPersonaleInterno:MATRICOLA2699 . @prefix parolechiave: . prodotto:ID180049 parolechiave:insiemeDiParoleChiave . ns10:ID574892 pubblicazioni:rivistaDi prodotto:ID180049 . parolechiave:insiemeDiParoleChiaveDi prodotto:ID180049 .