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Low temperature plasma-assisted chemical vapour deposition of amorphous carbon films for biomedical-polymeric substrates

Research output: Contribution to Journal/MagazineJournal articlepeer-review

  • I. R. McColl
  • D. M. Grant
  • S. M. Green
  • J. V. Wood
  • T. L. Parker
  • K. Parker
  • A. A. Goruppa
  • N. St J. Braithwaite
<mark>Journal publication date</mark>1/01/1994
<mark>Journal</mark>Diamond and Related Materials
Issue number1-2
Number of pages5
Pages (from-to)83-87
Publication StatusPublished
<mark>Original language</mark>English


Preliminary 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.