DLC and chromium-enriched DLC layers were prepared by hybrid laser–magnetron deposition.
The content of chromium in DLC varied up to 10 at.% (31 at.% after ion beam sputtering).
The surface content of toxic hexavalent chromium in the Cr 2p3/2 spectra is rather low but discernible.
Higher concentrations of chromium supported the cell adhesion and proliferation.
Cells on all Cr-containing samples maintained high viability (96 to 99%).