Boron carbon nitride (BCN) films have achieved attention owing to their crystal structure and unique properties. BCN compounds are expected to combine excellent properties of diamond, B₄C and BN with their properties adjustable depending on their composition and structure[1]. B-C-N ternary compounds has been reported previously for biological applications [2-5].

In this study, we investigate RF sputter deposited BCN films for biological applications. Bacterial contamination in biomedical field has several adverse effects. BCN coating may interfere with bacterial adhesion and reduce bacteria colonization. BCN films are deposited by reactive sputtering of B₄C target in presence of nitrogen. Bacteria colonies are grown on BCN thin films and incubated for 24 hours.

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