Preparation of Water-Soluble Magnetite Nanocrystals from Hydrated Ferric Salts in 2-Pyrrolidone:Mechanism Leading to Fe_3O_4

摘要

Magnetic nanoparticles of iron oxides (gamma-Fe_2O_3 and Fe_3O_4) and their suspensions have extensive applications in magnetic sealing,oscillation damping,and position sensing,ultrahigh-density magnetic storage media,clinical diagnosis and treatment,and biological labeling,tracking,imaging,detection,and separation.