Abstract
The article presents the results of research on the effect of magnetic hyperthermia performed on agar gel samples containing magnetite nanoparticles coated with dextran polymers for different molar weight M (150 kDa, 70 kDa, and 40 kDa). Regardless of the difference in molar dextran weights, these samples differed in a mass concentration of nanoparticles in the ferrogel C 0 (1.602 mg/cm 3, 2.506 mg/cm 3, 3.311 mg/cm 3, and 4.218 mg/cm 3). In the case of the highest magnetic field value H (20 kA·m −1), the specific loss power SPL reaches 70 W·g −1 for nanoparticles with 150 kDa dextran at a concentration of nanoparticles C 0 = 1.602 mg/cm 3. An oscillating magnetic field with an amplitude up to 20 kA·m −1 and a frequency of 357 kHz was used in the study.
Original language | English |
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Article number | 112734 |
Number of pages | 6 |
Journal | Journal of Molecular Liquids |
Volume | 304 |
Early online date | 19 Feb 2020 |
DOIs | |
Publication status | Published - 19 Feb 2020 |
Keywords
- Iron oxide nanoparticles
- magnetite
- Ferrogels
- magnetic fluids
- dextran
- heating effect
- specific loss power