Raiders of the lost SAR: Radiofrequency cycles of magnetic nanoflowers inside a tumor

Radiofrequency magnetic cycles of ex vivo melanoma tumor tissue loaded with Fe3O4 nanoflowers (NF) were measured for several field conditions and compared the a ferrogel (FG) obtained incorporating identical NF in agarose gel. Results studied order to understand reported specific power dissipation (SAR) reduction actual application medium (tumor) comparison typical characterization model as FG. The linearity response, together coercive SAR values analyzed. Additionally, novel method determination mean relaxation time is presented. show systematic difference response between incorporated those FG all settings ({98, 170, 260} kHz {17.4, 54.0} kA/m) reductions above 50%.