| Authors | Ahmad Reza Yasemian, Mohammad Almasi Kashi, Abdolali Ramazani |
|---|---|
| Journal | Journal of Materials Science: Materials in Electronics |
| Presented by | دانشگاه کاشان |
| Page number | 21278-21287 |
| Serial number | 24 |
| Volume number | 30 |
| Paper Type | Full Paper |
| Published At | 2019/12/1 |
| Journal Grade | ISI |
| Journal Type | Typographic |
| Journal Country | Netherlands |
Abstract
Magnetic nanoparticles (NPs) studied in hyperthermia investigations have shown promising results in combating tumors and slowing cancerous growth. However, no attention has been paid to hyperthermia properties of nickel ferrite NPs with different compositions. Herein, we synthesize Ni x Fe 3− x O 4 (0≤ x≤ 1) NPs using a co-precipitation method, followed by the investigation of their structural, magnetic, and hyperthermia properties. According to room-temperature hysteresis loop results, the complete replacement of Fe cations by Ni 2+ ions leads to a reduction in the saturation magnetization (M s) from 55.40 to 19.30 emu/g, and an increase in the coercive field (H c) from 7.33 to 71.40 Oe. Moreover, first-order reversal curve analysis reveals a reduction in the respective superparamagnetic fraction from 77 to 29% when increasing the Ni concentration (x) from 0 to 1. The results on magnetic hyperthermia