磁性纳米颗粒在旋转磁场中的加热

IF 2.7 3区工程技术 Q2 ENGINEERING, MECHANICAL

Nanoscale and Microscale Thermophysical Engineering Pub Date : 2020-01-02 DOI:10.1080/15567265.2019.1689589

N. Usov, O. N. Serebryakova, E. M. Gubanova

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引用次数: 4

摘要

摘要考虑到不同填充因子下纳米颗粒团簇中粒子磁矩的热波动和强磁偶极相互作用，计算了磁性纳米颗粒在旋转磁场中的比吸收率。对于相互作用的超顺磁性纳米颗粒的组装，发现在旋转磁场中的比吸收率的最大值比在交变磁场中大30–40%。此外，对于给定的填充因子和旋转磁场中的磁场振幅，更宽直径范围内的纳米颗粒可以有效地促进能量吸收过程。因此，在磁性纳米颗粒热疗中使用旋转磁场似乎是优选的。

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The heating of magnetic nanoparticles in a rotating magnetic field

ABSTRACT The specific absorption rate of magnetic nanoparticles in a rotating magnetic field has been calculated taking into account both thermal fluctuations of the particle magnetic moments and strong magneto-dipole interactions in nanoparticle clusters with various filling factors. For an assembly of interacting superparamagnetic nanoparticles, the maximal values of the specific absorption rate in a rotating magnetic field are found to be 30–40% greater than that in alternating magnetic field. In addition, for the given filling factor and magnetic field amplitude in rotating magnetic field the nanoparticles in a wider range of diameters can effectively contribute to the energy absorption process. Therefore, the use of rotating magnetic field seems preferable in magnetic nanoparticle hyperthermia.

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来源期刊

Nanoscale and Microscale Thermophysical Engineering 工程技术-材料科学：表征与测试

CiteScore

5.90

自引率

2.40%

发文量

审稿时长

3.3 months

期刊介绍： Nanoscale and Microscale Thermophysical Engineering is a journal covering the basic science and engineering of nanoscale and microscale energy and mass transport, conversion, and storage processes. In addition, the journal addresses the uses of these principles for device and system applications in the fields of energy, environment, information, medicine, and transportation. The journal publishes both original research articles and reviews of historical accounts, latest progresses, and future directions in this rapidly advancing field. Papers deal with such topics as: transport and interactions of electrons, phonons, photons, and spins in solids, interfacial energy transport and phase change processes, microscale and nanoscale fluid and mass transport and chemical reaction, molecular-level energy transport, storage, conversion, reaction, and phase transition, near field thermal radiation and plasmonic effects, ultrafast and high spatial resolution measurements, multi length and time scale modeling and computations, processing of nanostructured materials, including composites, micro and nanoscale manufacturing, energy conversion and storage devices and systems, thermal management devices and systems, microfluidic and nanofluidic devices and systems, molecular analysis devices and systems.