γ-Fe2O3/La-MOFs@SiO2 for magnetic resonance/fluorescence dual mode imaging and pH-drug delivery

In this work, novel core-shell γ-Fe2O3/La-MOFs@SiO2 nanoparticles were fabricated and characterized. The feasibility for multifunctional drug carrier was investigated. The cytotoxicity proved the high biocompatibility and the drug release experiments showed the excellent pH-responsive release. The magnetic nature and strong blue fluorescence indicated the potential use for magnetic target and magnetic resonance/fluorescence dual mode imaging.