Journal
JOURNAL OF PHYSICAL CHEMISTRY C
Volume 113, Issue 33, Pages 14638-14643Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jp903333r
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Funding
- Soft-Matter Cryo-TEM Research Unit
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Commercially available superparamagnetic iron oxide nanoparticles (SPION) of 12 nm are characterized with respect to their physical, magnetic, and heating properties in ail alternating magnetic field. For this purpose, a specialized magnetic field setup has been developed and characterized. Particles of the water-based ferrofluid, EMG705, and particles coated for a hydrocarbon carrier have been investigated using several techniques, including transmission electron microscopy and superconducting quantum interference device magnetometry, showing the superparamagnetic behavior of the particles. The specific absorption rate of the particles has been confirmed to have square dependency oil the magnetic field strength. The difference in heating of the two samples could he explained by the difference in particles size distribution.
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