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. 2022 Jan 18;144(3):030801. doi: 10.1115/1.4053007

Fig. 1.

Magnetic heating of SPIONs for magnetothermal therapy. (a) The induction heater consists of a transformer/generatorto input an AC into a solenoid coil to generate an AMF for heating SPIONs. (b) A schematic illustration of the mechanisms of AMF heating of SPIONs. SPIONs perform as an energy transfer mediator and as a mechanical force vector. Through repeated alignments of magnetic spins and relaxations via Néel (spin rotation) and Brownian (particle rotation) relaxations, in response to the AC magnetic field, thermal energy can be generated from the magnetic nanoparticles. Heat can also be generated due to the hysteresis loss. (Reproduced with permission from Yoo et al. [14]. Copyright 2011 by American Chemical Society), with modification.

Magnetic heating of SPIONs for magnetothermal therapy. (a) The induction heater consists of a transformer/generatorto input an AC into a solenoid coil to generate an AMF for heating SPIONs. (b) A schematic illustration of the mechanisms of AMF heating of SPIONs. SPIONs perform as an energy transfer mediator and as a mechanical force vector. Through repeated alignments of magnetic spins and relaxations via Néel (spin rotation) and Brownian (particle rotation) relaxations, in response to the AC magnetic field, thermal energy can be generated from the magnetic nanoparticles. Heat can also be generated due to the hysteresis loss. (Reproduced with permission from Yoo et al. [14]. Copyright 2011 by American Chemical Society), with modification.