Fig. 2From: Erratum: The Enhanced Anticoagulation for Graphene Induced by COOH+ ion ImplantationSEM and CA images of pristine graphene and COOH+/graphene. (a) Pristine graphene, (b) COOH+/ graphene with 1 × 1017 ions/cm2, (c) COOH+/graphene with 5 × 1017 ions/cm2, and (d) COOH+/graphene with 1 × 1018 ions/cm2Back to article page