Figure 8From: Aptamer-modified magnetic nanoprobe for molecular MR imaging of VEGFR2 on angiogenic vasculatureRepresentative photographs of the brain stained with H & E and Prussian blue. Representative photographs of the brain stained with H & E and Prussian blue after treated with Apt-MNC and carboxylated MNC. Ferric ions from Apt-MNC showed bright blue pigment (blue arrow).Back to article page