Effect of rotating magnetic field on ferromagnetic structures used in hyperthermia

•Heating efficiency of magnetically guided nanoparticles under action of RMF is tested.•SAR parameter is applied to evaluate the heat effect of nanomaterials.•Data showed that RMF (50 Hz) may be applied as reinforcing factor in hyperthermia. The study was aimed at investigating the heating efficiency of magnetically guided nanoparticles. The effect of graphene oxide (GO), magnetite (Fe3O4) and hybrid material (GO/Fe3O4) have been studied. The samples have been inductively heated at 42 °C in the presence of rotating magnetic field (RMF). The experiments have been conducted as a function of temperature different and samples concentrations in phosphate-buffered saline (PBS) medium. These measurements have been realized by means of the dynamic description of the obtained temperature changes. The field-dependent specific absorption rate (SAR) values of the applied systems with the nanoparticles were discussed. The results reveal that RMF may be successfully applied as a reinforcing factor in order to enhance the heating efficiency of the tested materials. The obtained results reveal the concentration dependent response to RMF and clear added value to study the hybrid materials in this fascinating field of interest.