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Characterization of the magnetic NPs. Analysis and comparison of the synthesized NPs (Fe3O4 and Fe3O4@SiO2) are presented. a SEM analysis of the magnetic NPs; panel A is Fe3O4 and panel B is Fe3O4@SiO2 particles. b XRD pattern of both Fe3O4 (top/red pattern) and Fe3O4@SiO2 (bottom/blue pattern). c FTIR spectrum of Fe3O4 (top) and Fe3O4@SiO2 (bottom). d VSM analysis of the iron oxide NPs
