Low temperature plasma-assisted chemical vapour deposition of amorphous carbon films for biomedical-polymeric substrates
1994; Elsevier BV; Volume: 3; Issue: 1-2 Linguagem: Inglês
10.1016/0925-9635(94)90035-3
ISSN1879-0062
AutoresI.R. McColl, David M. Grant, Sarah Green, J. V. Wood, Terry Parker, Kevin Parker, A. Goruppa, Nicholas Braithwaite,
Tópico(s)Tribology and Lubrication Engineering
ResumoPreliminary results have been obtained on the biocompatibility of amorphous carbon hydrogen (αC:H) coatings deposited on polystyrene. Deposition was carried out at low substrate temperatures using pulsed r.f. plasma-assisted chemical vapour deposition from a methane-hydrogen gas mixture. Cytotoxicity tests using a standard cell line indicate a high degree of biocompatibility. Specifically, αC:H is not toxic to cells, appears to increase cell attachment and affords normal cell growth rates. Wear and other tests have revealed no significant differences between these αC:H coatings and those deposited on a stainless steel at a higher substrate temperature, except for a more pronounced surface texture. However, position in the r.f. plasma was found to be critical for the deposition of good, adherent low temperature coatings.
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