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Synthesis of pH-responsive mNPs using polymeric micelles composed of amphiphilic pH-responsive polymer chains. The hydrophobic dodecyl group at one end of RAFT-synthesized P(tBMA-co-NIPAAm) chains formed micelles in tetraglyme, then loaded with Fe(CO)5 and heated at 190°C for 5 hours to synthesize the γ-Fe2O3 cores. Finally, the tert-butyl groups were partially cleaved and converted to carboxylates to generate pH-responsiveness.
