4.7 Article

The influence of magnetic nanoparticle concentration with dextran polymers in agar gel on heating efficiency in magnetic hyperthermia

Journal

JOURNAL OF MOLECULAR LIQUIDS
Volume 304, Issue -, Pages -

Publisher

ELSEVIER
DOI: 10.1016/j.molliq.2020.112734

Keywords

Iron oxide nanoparticles; Magnetite; Ferrogels; Magnetic fluid; Dextran; Heating effect; Specific loss power

Funding

  1. National Science Centre, Poland [2015/17/B/ST7/03566]

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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 70W.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. (C) 2020 The Authors. Published by Elsevier B.V.

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