Enhanced hyperthermia performance in hard-soft magnetic mixed Zn0.5CoxFe2.5-xO4/SiO2 composite magnetic nanoparticles
Enhanced hyperthermia performance in hard-soft magnetic mixed Zn0.5CoxFe2.5-xO4/SiO2 composite magnetic nanoparticles
复制标题
硬软磁混合 Zn0.5CoxFe2.5-xO4/SiO2 复合磁性纳米颗粒增强热性能
DOI：
10.1088/1674-1056/abc67c
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发表时间：
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影响因子：
1.7
通讯作者：
He Shu Li
中科院分区：
文献类型：
--
作者：
Yu Xiang;Wang Li Chen;Li Zheng Rui;Mi Yan;Wu Di An;He Shu Li
采用改进的热分解法制备了高质量的Zn 0.5CoxFe2.5-xO 4（x= 0，0.0 5，0.1，0.15）系列单立方结构磁性纳米粒子，并对SiO2进行表面修饰，制备了Zn 0.5CoxFe2.5-xO 4/SiO2复合磁性纳米粒子。样品的磁各向异性随Co 2+掺杂量的增加而增加。当掺杂量为0.1时，样品在室温下表现出从超顺磁性到亚铁磁性的转变。在Zn 0.5CoxFe2.5-xO 4/SiO2系列样品中，当掺杂量x= 0.1时，比损耗功率（SLP）达到最大值，为1974 W/g金属。该复合纳米粒子有望成为临床磁热疗的理想候选材料。
High quality Zn 0.5 Co x Fe 2.5–x O 4 (x= 0, 0.05, 0.1, 0.15) serial magnetic nanoparticles with single cubic structures were prepared by the modified thermal decomposition method, and Zn 0.5 Co x Fe 2.5–x O 4/SiO 2 composite magnetic nanoparticles were prepared by surface modification of SiO 2. The magnetic anisotropy of the sample increases with the increase of the doping amount of Co 2+. When the doping amount is 0.1, the sample shows the transition from superparamagnetism to ferrimagnetism at room temperature. In the Zn 0.5 Co x Fe 2.5–x O 4/SiO 2 serial samples, the maximum value of specific loss power (SLP) with 1974 W/g metal can also be found at doping amount of x= 0.1. The composite nanoparticles are expected to be an excellent candidate for clinical magnetic hyperthermia.