Abstract
Abstract An advanced DLC coating technique has been developed to fabricate adhesive DLC layer on silicone-based tubular medical devices. The novelty of the multi-electrode coaxial magnetron plasma system includes the capability to produce a uniform and flexible DLC coating layer of high hardness and low friction coefficient by a chemical vapor deposition (CVD)-physical vapor deposition (PVD) hybrid technique. In addition, it is a simple single-step process such that pretreatment is not required on the silicone-based substrate. Preliminary cell culture in mouse adipocytes (fat cells) has been conducted to evaluate the presence of potential leachables in DLC coating. Results have indicated compatible cell morphology of filopodial shape and well expansion on the DLC-coated surface as opposed to the rounding and partial detachment on the bared silicone surface.
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