Fe3O4 nanoparticle

Ferric oxide (Fe₃O₄) is widely used in magnetic resonance imaging (MRI), magnetic separation, targeted drug delivery, tumor hyperthermia, cell labeling and separation, and as a contrast agent and enhancement agent in retinal detachment repair surgery due to its stable material properties, good biocompatibility, high strength, and lack of toxic side effects. It is also used as a catalyst carrier, microwave absorbing material, and magnetic recording material. Xianfeng has developed numerous derivatives of ferric oxide, including oleic acid-modified ferric oxide, PEG-terminated ferric oxide, DMSA-modified ferric oxide, polylysine-modified ferric oxide, carboxylated dextran-modified ferric oxide nanoparticles, streptavidin-modified ferric oxide particles, thiol-modified ferric oxide magnetic nanoparticles, and polyethyleneimine (PEI)-modified magnetic ferric oxide nanoparticles, among others. This wide range of modifications provides numerous options for subsequent experiments.