In situ synthesis of cobalt ferrite nanoparticle/polymer hybrid from a mixed Fe-Co methacrylate for magnetic hyperthermia

► In-situ synthesized hyperthermic CoFe2O4 nanoparticle/polymer hybrid. ► Single crystalline methacrylate complex of Co and Fe. ► Enhanced water dispersibility of hybrid by copolymerization with 2-hydroxyethyl methacrylate. ► The controllable heat by magnetic properties of the hybrid and the applied field strength.