MnII-containing coordination nanoparticles as highly efficient T1 contrast agents for magnetic resonance imaging†
Abstract
Large longitudinal relaxivities were observed in MnII-containing Prussian blue analogue nanoparticles. At low concentrations and high field (7 T), a remarkable positive contrast enhancement was seen which exceeded that of clinical contrast agents and was attributed to the very large proportion of surface atoms of these coordination nanoparticles.