HIPNANOLAM

Biocompatible and wear protective carbon based nanolaminate films for hip replacement joint applications

 Coordinatore  

 Organization address address: KALLIPOLEOS STREET 75
city: NICOSIA
postcode: 1678

contact info
Titolo: Prof.
Nome: Claus
Cognome: Rebholz
Email: send email
Telefono: +357 22 892282
Fax: +357 22 892254

 Nazionalità Coordinatore Non specificata
 Totale costo 45˙000 €
 EC contributo 45˙000 €
 Programma FP7-PEOPLE
Specific programme "People" implementing the Seventh Framework Programme of the European Community for research, technological development and demonstration activities (2007 to 2013)
 Code Call F
 Anno di inizio 2010
 Periodo (anno-mese-giorno) 2010-09-01   -   2013-08-31

 Partecipanti

# participant  country  role  EC contrib. [€] 
1    UNIVERSITY OF CYPRUS

 Organization address address: KALLIPOLEOS STREET 75
city: NICOSIA
postcode: 1678

contact info
Titolo: Prof.
Nome: Claus
Cognome: Rebholz
Email: send email
Telefono: +357 22 892282
Fax: +357 22 892254

CY (NICOSIA) coordinator 45˙000.00

Mappa


 Word cloud

Esplora la "nuvola delle parole (Word Cloud) per avere un'idea di massima del progetto.

joint    affects    tissues    prosthesis    ions    layers    hydrogen    materials    amorphous    surface    metal    wear    hard    issue    release    friction    free    prostheses    carbon   

 Obiettivo del progetto (Objective)

'Stress shielding is one phenomenon that commonly affects joint prostheses causing loosening of the prosthesis. This problem is common and it affects nearly all metal prosthesis components currently used. Wear of orthopaedic implant materials is an issue of high importance some alloys degrade at an average rate of 0.02–0.06 mm/year. Corrosion, fatigue, friction, and wear are the main surface characteristics that are considered when designing prostheses. The potential release of cobalt, chromium, nickel, aluminium, and vanadium ions, which exhibit allergic, carcinogenic, and/or toxic interactions with human tissues is also a significant issue to eliminate when selecting materials for surface treatments. Finally, a well controlled pinhole-free finish is necessary to uniformly provide these properties over the entire device surface. Diamond like carbon is an ideal surface coating for prosthetic joints, because it is atomically smooth, low friction, wear resistant, inert, and immune to scratching by third body wear particles. Furthermore, it prevents the release of metal ions into the surrounding tissues. Hydrogen-free diamondlike carbon is greatly preferred over for joint prosthesis applications, in which a low friction surface under humid conditions is required. Novel nanostructured carbon-based functionally-graded multilayer-nanolaminate systems using hard ceramic layers (e.g. WC, TiC), with either hard a-C:H, hydrogen-free amorphous C (a-C) or tetrahedral amorphous C (ta-C) individual layers, ranging from a few nanometres to approximately 100 nm in thickness, combine the bioactive and biocompatible properties of DLC coatings and also have the flexibility to impart lubricity in various environments, yet maintain hardness, and dramatically increase toughness.'

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