论文标题

设计用于磁性高温应用的便携式射频源

Designing a portable radiofrequency source for magnetic hyperthermia applications

论文作者

Calvache, Christian, Mera-Córdoba, Jenny, Coral, Diego F.

论文摘要

在21世纪,已经开发了用于癌症治疗的新的和替代性的非放射性方法。其中之一是磁性高温(MH),它基于磁性纳米颗粒(MNP)将电磁能传导到热量的能力。如果MNP在癌细胞内,则热量会诱导细胞死亡。 HM作为癌症治疗的成功取决于两个因素,首先是NPM特性,其次是射频频率(RF)应用场的频率和振幅。因此,在这项工作中,提出了用于磁性高温实验的便携式射频源的设计。该设计由两个部分组成,第一部分对应于由RLC并行电路组成的RF源,为了达到RF的频率范围,已经选择了容量和电感值,第二部分对应于磁化传感器电路的设计。虽然第一电路产生RF场,但第二电路是NPM诱导磁化的检测器。这种射频频率来源的开发使得可以确定NPM系统在磁性高温治疗癌症中的适用性,这为将来的研究开放,侧重于纳米技术在生物医学中的应用。

In the 21st century, new and alternative non-radioactive methods for cancer treatment have been developed. One of this is magnetic hyperthermia (MH), which is based on the ability of magnetic nanoparticles (MNP) to transduce electromagnetic energy into heat. If MNP are inside cancer cells, heat induces cells death. The success of HM as cancer therapy depends on two factors, first, the NPM properties and second, the frequency and amplitude of the radio frequency (RF) applied field. Therefore, in this work a design of a portable radio frequency source for magnetic hyperthermia experiments is presented. The design consists of two parts, the first part corresponds to the RF source composed by a RLC parallel circuit, the capacity and inductance values have been chosen in order to achieve the RF range of frequency, and the second part corresponds to the design of a magnetization sensor circuit. While the first circuit produces the RF field, the second circuit serves as a detector of the NPM induced magnetization. The development of this radiofrequency source makes it possible to determine the applicability of an NPM system in the treatment of cancer by magnetic hyperthermia, opening doors for future research focused on the application of nanotechnology in biomedicine.

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