Figure 2: Localization of the fibrin γ377-395 peptide-conjugated γ-Fe2O3 nanoparticles in the frontal cortex. The γ-Fe2O3 nanoparticles were stained with potassium ferocyanide (blue). No staining was seen in the hemisphere injected with saline (A, C) and free fibrin γ377-395 peptide (B). Positive staining (D) (arrows) indicates the presence of the nanoparticles. Scale bar: 50 μm.