趋磁细菌悬浮液在GHz范围内复介电常数和磁导率的测量

2018 EMF-Med 1st World Conference on Biomedical Applications of Electromagnetic Fields (EMF-Med) Pub Date : 2018-09-01 DOI:10.23919/EMF-MED.2018.8526057

L. Farrugia, S. Miclaus, C. Moisescu, I. Ardelean, C. Sammut

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引用次数: 1

摘要

趋磁细菌(MTB)细胞含有磁小体链，磁小体是包裹在脂质双分子层中的磁铁矿纳米晶体。制备培养的MTB水基悬浮液，采用开放式同轴探头反射法(0.5 ~ 50 GHz)和矩形波导透射法(8.2 ~ 12.4 GHz)测定其电、磁性能。基于测量的盐溶液的复介电常数与文献数据的非常好的一致性，我们在这里报告了培养结核分枝杆菌悬浮液的复介电常数和渗透率的结果。

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Measurements of complex permittivity and permeability in the GHz range of magnetotactic bacteria suspensions

Magnetotactic bacteria (MTB) cells contain chains of magnetosomes, which are magnetite nanocrystals enveloped in a lipid bilayer. A water-based suspension of cultured MTB was prepared and the electric and magnetic properties were measured by two methods: a reflection method using an open-ended coaxial probe (0.5-50 GHz) and a transmission method using a rectangular waveguide (8.2-12.4 GHz). Based on the very good agreement obtained for the measured complex permittivity of a saline solution with data in the literature, we report here the results of both the complex permittivity and permeability of a suspension of cultured MTB.

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2018 EMF-Med 1st World Conference on Biomedical Applications of Electromagnetic Fields (EMF-Med)

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