Aggregation of superparamagnetic iron oxide nanoparticles in dilute aqueous dispersions: Effect of coating by double-hydrophilic block polyelectrolyte

- Coating of magnetic nanoparticles by block polyelectrolyte affects their aggregation.
- Clusters of polyelectrolyte-coated magnetic nanoparticles form linear aggregates.
- Non-diffusive internal dynamics of the aggregates was observed.