Fig. 4From: Lanthanide-Functionalized Hydrophilic Magnetic Hybrid Nanoparticles: Assembly, Magnetic Behaviour, and Photophysical PropertiesRoom temperature (300 K) magnetic hysteresis loops of a Fe3O4 NPs, b Fe3O4@SiO2, c Fe3O4@SiO2-[Eu(DBM)3Lp], d Fe3O4@SiO2-[Eu(DBM)3Lp]@PEI nanocompositeBack to article page