Properties of a new carbon film for biomedical applications
Paccagnella, A.; Majni, G.; Ottaviani, G.; Arru, P.; Santi, M.; Vallana, F.
International Journal of Artificial Organs 9(2): 127-130
1986
ISSN/ISBN: 0391-3988 PMID: 3699909 Document Number: 270196
The physical and chemical properties of carbon films, about 0.5 .mu. thick, deposited at low temperature (40-200.degree. C) by a new physical vapour deposition technique are presented, in comparison with those of pyrolytic carbon normally used in biomedical devices. Several analytical techniques have revealed that the thin carbon films present structural properties similar to those of pyrolytic carbon. For example, similar chemical bondings of C atoms are observed in both samples. Moreover the data suggest the presence in thin C films of both tetrahedral and graphitic bondings, as in the turbostratic structure typical of pyrolytic carbon. These results confirm the similar biocompatibility properties of both types of materials already established by in vivo experiments.