The Magnetic Anisotropy Effectiveness on NiFe2O4 and NiFe2O4@SiO2 Nanoparticles for Hyperthermia Applications


Coşkun M., Çitoğlu S. , Korkmaz M., Fırat T.

Cumhuriyet Science Journal, vol.38, no.4, pp.193-205, 2017 (National Refreed University Journal)

  • Publication Type: Article / Article
  • Volume: 38 Issue: 4
  • Publication Date: 2017
  • Doi Number: 10.17776/csj.363654
  • Title of Journal : Cumhuriyet Science Journal
  • Page Numbers: pp.193-205

Abstract

In this study, we analyzed the magneto-heating properties of NiFe2O4 nanoparticles, coated with a

SiO2 shell for hyperthermia applications. The NiFe2O4 nanoparticles were synthesized and coated with SiO2 by

chemical route and water in oil techniques, respectively. The size of core particles is ~5.6±0.1 nm and the

thicknesses of the SiO2 layers around the core change from 0 nm to 14.1±0.1 nm by increasing the amount of

tetraethyl orthosilicate from 0 ml to 2.5 mL during the synthesis process. The magnetic anisotropies, obtained

from magnetic susceptibility measurements have the same behavior with the specific heat absorption ratio of

the samples.