Stable monodisperse nanomagnetic colloidal suspensions: An overview

- Colloidal magnetic nanoparticles have applications in engineering and biomedical.
- Nanomagnetite synthesized via co-precipitation, wet grinding and microemulsion.
- Interparticle forces in magnetite suspension are van der Waals, double layer and steric.
- Surfactant or polymer used to adjust particles properties to prevent sedimentation.