chemical nanoparticle iron oxide nanoparticle 2021-02-09T12:06:12Z Fe3O4 nanoparticle Iron(II,III)oxide nanoparticle MNP PMID:22661893 This is any condition in which the main influencing factor is a particle with a size between 1 and 100 nanometers composed of iron oxide (Fe3O4). It contains both Fe2+ and Fe3+ ions and is sometimes formulated as FeO ? Fe2O3. It exhibits permanent magnetism and is ferrimagnetic. XCO:0000800 experimental_condition_ontology iron oxide nanoparticles magnetic nanoparticle slaulede