Interactions at the CMC/magnetite interface: Implications for the stability of aqueous dispersions and the magnetic properties of magnetite nanoparticles

- Fe3O4 nanoparticles modified with CMC were prepared.
- They were prepared by mixing magnetite NPs separately prepared with CMC (ex situ).
- They were prepared by coprecitation in the presence of CMC (in situ).
- The in situ method allows to obtained smaller aggregates of NPs.
- Interactions at the CMC/Fe3O4 interface explain the stability of the aqueous dispersions.