Figure 2.

Heating measurements upon photothermal (PT) therapy at 0.3 and 1 W cm⁻² and magnetic hyperthermia (MHT) at 18 mT and 470 kHz. Representative infrared images of 50 μL of four MNP preparations at Fe concentrations of 8, 32, and 164 mM after 10 min of exposure to the different external stimuli are displayed. Increases in temperature were analyzed for a 1064 nm laser at the power of 0.3 W cm⁻² (top row), 1 W cm⁻² (middle row), and alternating magnetic fields at 18 mT and 470 kHz (bottom row).