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The rat’s major organ slices 24 hours after the injection of nanoparticle-labeled MSCs were stained using (A) H&E and (B) Prussian blue. The scale bar is 100 µm.
Abbreviations: Fe3O4@PDA, PDA-capped Fe3O4; H&E, hematoxylin and eosin; PDA, polydopamine; MSC, mesenchymal stem cell.
