Tuning dipolar effects on magnetic hyperthermia of Zn0.3Fe2.7O4/SiO2 nanoparticles by silica shell
Tuning dipolar effects on magnetic hyperthermia of Zn0.3Fe2.7O4/SiO2 nanoparticles by silica shell
复制标题
通过二氧化硅壳调节 Zn0.3Fe2.7O4/SiO2 纳米颗粒磁热的偶极效应
DOI:
10.1016/j.jmmm.2020.167483
复制
发表时间:
2021-03
影响因子:
2.7
通讯作者:
Hao Zeng
中科院分区:
文献类型:
--
作者:
Xiang Yu;Lichen Wang;Kai Li;Yan Mi;Zhengrui Li;Di’an Wu;Fan Sun;Shuli He;Hao Zeng
Effects of magnetic dipole interactions on specific loss power (SLP) for Zn0.3Fe2.7O4/SiO2core/shell nanoparticles (NPs) with identical magnetic core size and varying non-magnetic shell thicknesses were systematically investigated. In the case of thin silica shell, NPs form chain-like structures due to strong dipole interactions between NPs. The chain formation induces additional shape anisotropy. With increasing thickness of the silica shell, the dipole interaction and therefore the anisotropy induced by the dipole interactions decrease. Meanwhile, the hydrodynamic size of the NPs shows a counterintuitive reduction with increasing shell thickness, also due to the decrease in interactions. The magnetic anisotropy and hydrodynamic size affect the SLP through changes in the Néel and Brownian relaxation rates, leading to different field-dependent SLP values for NPs with thin and thick shells.
登录
查看更多内容
影响因子:
4.6
作者:
Fu R;Yan Y;Roberts C;Liu Z;Chen Y
通讯作者:
Chen Y
影响因子:
6.7
作者:
Zhang H;Huang H;He S;Zeng H;Pralle A
通讯作者:
Pralle A
影响因子:
2.7
作者:
Franja Šulek;M. Drofenik;M. Habulin;Ž. Knez
通讯作者:
Franja Šulek;M. Drofenik;M. Habulin;Ž. Knez
影响因子:
38.3
作者:
Lee, Jae-Hyun;Jang, Jung-tak;Cheon, Jinwoo
通讯作者:
Cheon, Jinwoo
影响因子:
10.8
作者:
Lee, Nohyun;Choi, Yoonseok;Hyeon, Taeghwan
通讯作者:
Hyeon, Taeghwan