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Versatility of magnetic nanoparticles in biomedicine. a Iron oxide nanoparticles coated with dextran were subsequently exposed to dihydrazide-PEG linker. This magnetic nanocarrier is useful for bioconjugation of aldehyde bearing cetuximab. b Heparin coated super paramagnetic iron oxide nanoparticles are applied for non-invasive MRI c A suitable polymer coated spions are successful in delivering any molecules (Drug or DNA) with therapeutic effects
