Abstract
Preliminary results of diamond-like carbon (DLC) coating with its novel properties with no toxicity have caused a strong interest of commercial manufacturers of surgical implants. DLC coatings were prepared on polymethylmethacrylate (PMMA) at room temperature using ion beam assisted deposition (IBAD). It could be shown by X-ray photoelectron spectroscopy, Auger electron spectroscopy, and Raman spectroscopy that DLC coating prepared by 800 eV CHn+ beam bombardment possessed a higher fraction ofsp 3 bonds in the structure of mixedsp n3 +sp n2 bonding, resulting in a higher hydrophobicity. The results of the cell attachment tests indicated that DLC coatings exhibited low macrophage attachment and provided desirable surface for the normal cellular growth and morphology of the fibroblasts. At the same time, the number of both neutral granulocytes and platelets adhering to DLC coatings decreased significantly. These findings showed that DLC was a better coating with desirable tissue and blood compatibility.
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Li, D.J., Gu, H.Q. Cell attachment on diamond-like carbon coating. Bull Mater Sci 25, 7–13 (2002). https://doi.org/10.1007/BF02704587
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DOI: https://doi.org/10.1007/BF02704587