Figure 4.

Evolution of the specific absorption rate (SAR) of Fe3O4@PAA NPs dispersions with solvent viscosity, η, under an external AC magnetic field of B = 15 mT and ν = 308 kHz. Solid line is a guide for the eye.

Piñeiro-Redondo et al. Nanoscale Research Letters 2011 6:383   doi:10.1186/1556-276X-6-383
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