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Dex-PBMA morphology after stent coating. (A) SEM micrographs of dextran grafted poly(butyl methacrylate) (Dex-PBMA ) coated stent. Stents were expanded, dip-coated, crimped on a balloon and expanded again. They spend 8 days in water either in static or under flow conditions, shear rate 1000 s-1. (B) Water contact angles on cobalt chrome (CoCr), Dex-PBMA or Dex-PBMA with tacrolimus (Dex-PBMA TAC) discs. Values are mean ± SEM of 10 determinations ** P<0.01.
