Magnetic field regulated, controlled hyperthermia with LixFe3-xO4 (0.06 ≤ x ≤ 0.3) nanoparticles

被引：16

作者：

Srivastava, M. ^{[1
]}

Alla, S. K. ^{[1
,2
]}

Meena, Sher Singh ^{[3
]}

Gupta, Nidhi ^{[4
]}

Mandal, R. K. ^{[1
]}

Prasad, N. K. ^{[1
]}

机构：

[1] Banaras Hindu Univ, Indian Inst Technol, Dept Met Engn, Varanasi 221005, Uttar Pradesh, India

[2] Vignans Inst Informat Technol, Visakhapatnam 530049, Andhra Pradesh, India

[3] Bhabha Atom Res Ctr, Solid State Phys Div, Mumbai 400085, Maharashtra, India

[4] Bhabha Atom Res Ctr, Tech Phys Div, Mumbai 400085, Maharashtra, India

来源：

CERAMICS INTERNATIONAL | 2019年 / 45卷 / 09期

关键词：

Magnetic nanoparticles; Ferrofluids; Magnetic hyperthermia; Stable; Temperature; LITHIUM; TRANSITION; OXIDE;

D O I：

10.1016/j.ceramint.2019.03.097

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The single phase LixFe3-xO4 (0.06 <= x <= 5 0.3) nanoparticles were synthesized using microwave refluxing technique and found to be spherical with the size in the range of similar to 3-22 nm. The structure and the size were confirmed by X-ray diffraction patterns and transmission electron microscopy. X-ray photoelectron spectroscopy data of Li0.3Fe2.7O4 sample indicate the oxidation states for Li-ions (+1) and Fe-ions (+2 and +3). The sample Li0.06Fe2.94O4 had superior magnetization value (similar to 54.1 Am-2/kg) and it diminished with increasing Li content. The low coercivity values and the presence of a doublet in Mossbauer spectra advise the presence of both ferrimagnetic and superparamagnetic component. The ferrofluids of these samples show magnetic field dependent stabilization of temperature near 42 degrees C at the time of magnetic hyperthermia experiments. The specific absorption rate value (up to 100 W/g) found to be comparable with the literature values.

引用

页码：12028 / 12034

页数：7

共 29 条

[1] Solvothermal synthesis of CuO-MgO nanocomposite particles and their catalytic applications [J].