Synthesis of iron nitride nanoparticles from magnetite nanoparticles of different sizes for application to magnetic hyperthermia

Synthesis of iron nitride nanoparticles from magnetite nanoparticles of different sizes for application to magnetic hyperthermia
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由不同尺寸的磁铁矿纳米颗粒合成氮化铁纳米颗粒用于磁热疗

DOI:
10.1016/j.ceramint.2019.08.086
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发表时间:
2019
影响因子:
5.2
通讯作者:
T. Ogawa and M. Kawashita
T. Ogawa and M. Kawashita
中科院分区:
材料科学1区
文献类型:
--
作者:
M. Shibata;T. Ogawa and M. Kawashita

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氮化铁(FexNy)作为无稀土硬磁材料的候选材料引起了人们的极大关注,近年来,FeNy纳米粒子的合成方法已经建立起来。此外,它的磁性可用于磁热疗。因此,为了评估其实用性,本研究尝试了铁纳米粒子的合成,并与长期以来一直被研究为生物材料的磁性纳米颗粒(MNPs)进行了磁性能和发热性能的比较。通过还原和氮化的方法成功地合成了尺寸在几十纳米量级的Fe16N2纳米粒子,并且样品显示出比MNPs更高的估计产热。结果表明,Fe16N2纳米粒子可作为磁热疗的热种,具有较高的热效率。
Iron nitrides (FexNy) have attracted considerable attention as candidates for rare-earth-free hard magnetic material, and recently, the synthesis methods for FexNynanoparticles have been established. Further, its magnetic properties might be useful for magnetic hyperthermia. Therefore, to assess its utility, the synthesis of FexNynanoparticles was attempted in this study, and their magnetic properties and heat generation were compared with magnetite nanoparticles (MNPs), which have long been studied as biomaterials. Fe16N2nanoparticles were successfully synthesized by reducing and nitriding MNPs with a size on the order of a few dozen nanometers, and the sample showed higher estimate heat generation than the MNPs. It was suggested that Fe16N2nanoparticles might be used as thermal seeds for magnetic hyperthermia with higher heating efficiency.
用于基于热疗的治疗和受控药物递送的磁纳米材料。
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