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Multifunctional and degradable nanogels encapsulating both model drug (fluorescently labeled dextran) and imaging reagent (monodisperse Fe 3 O 4 nanoparticles) were developed by polymerizing zwitterionic monomers with a disulfide crosslinker. Results show that the nanogels have a hydrodynamic size of about 110 nm in saline solution and their size remained unchanged for over 6 months...
Multifunctional magnetic nanoparticles (MNPs) modified by a zwitterionic polymer (pCBMA–DOPA 2 ) containing one poly(carboxybetaine methacrylate) (pCBMA) chain and two 3,4-dihydroxyphenyl-l-alanine (DOPA) residue groups were developed. Results showed that MNPs modified by pCBMA were not only stable in complex media, but also provided abundant functional groups for ligand immobilization. The...
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