Cu impedance-based detection of superparamagnetic nanoparticles

Lago-Cachón D.; Rivas M.; Martínez-García J.C.; García J.A.

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Cu impedance-based detection of superparamagnetic nanoparticles

机译：基于铜阻抗的超顺磁性纳米粒子检测

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A novel method for superparamagnetic nanoparticle detection using copper impedance as the sensing property is presented. The increase of impedance produced by the proximity of the nanoparticles in the copper is comparable to that of classical magnetoimpeditive materials. A physical interpretation of the detection in terms of the induction of eddy currents in the copper element by the oscillating magnetic moments of the particles is proposed. Experimental research has been done to support this hypothesis, namely, analyses of the influence of the driving current frequency and amplitude, and of the geometry and size of the sensing conductor. The ability of copper to quantify the number of nanoparticles was successfully verified, evidencing the great potential of this new method.

机译：提出了一种以铜阻抗为传感特性的超顺磁性纳米粒子检测新方法。由铜中的纳米颗粒的接近所产生的阻抗的增加可与传统的磁阻材料相比。提出了根据粒子的振荡磁矩在铜元素中感应涡流来对检测进行物理解释的方法。为了支持这一假设，已经进行了实验研究，即，分析了驱动电流频率和幅度以及感测导体的几何形状和尺寸的影响。铜量化纳米颗粒数量的能力已得到成功验证，证明了这种新方法的巨大潜力。

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《Nanotechnology》 |2013年第24期|共6页
作者
Lago-Cachón D.; Rivas M.; Martínez-García J.C.; García J.A.;
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正文语种 eng
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superparamagnetic nanoparticle; novel method; copper impedance;

机译：超顺磁性纳米粒子;新颖法;铜阻抗;

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1. Cu impedance-based detection of superparamagnetic nanoparticles [J] . Lago-Cachón D., Rivas M., Martínez-García J.C., Nanotechnology . 2013,第24期

机译：基于铜阻抗的超顺磁性纳米粒子检测
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Cu impedance-based detection of superparamagnetic nanoparticles

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