Due to the exclusive size effect, magnetic nanoparticles (MNPs) exhibit unique chemical, mechanical and considerably different magnetic properties compared with conventional micro and macro materials. Therefore, MNPs are of great significance and interest in biology, medicine and engineering. Recently, MNPs are also found to show great potential in petroleum industry applications, such as targeted adsorption, remote detection, directional transport and local heating. For these specific applications, the dispersity and stability of the MNPs in suspension are of great importance. Although some w...
