Detection of magnetic nanoparticles utilizing cooled normal pickup coil and high Tc SQUID

被引：15

作者：

Enpuku, K. ^{[1
]}

Nabekura, S. ^{[1
]}

Tsuji, Y. ^{[1
]}

Okada, S. ^{[1
]}

Matsuo, M. ^{[1
]}

Tsukamoto, A. ^{[2
]}

Mizoguchi, T. ^{[2
]}

Kandori, A. ^{[2
]}

机构：

[1] Kyushu Univ, Res Inst Superconductor Sci & Syst, Fukuoka 8190395, Japan

[2] Hitachi Ltd, Adv Res Lab, Tokyo 1858601, Japan

来源：

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 2009年 / 469卷 / 15-20期

关键词：

High T-c SQUID; Cooled pickup coil; Magnetic nanoparticles; Susceptibility measurement; MAGNETOMETER;

D O I：

10.1016/j.physc.2009.05.072

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Magnetic nanoparticles coupled with medicine or reagents have been studied for the application to in vivo medical diagnosis and drug delivery. For these applications, we have been developing a measurement system to detect the position and amount of the magnetic nanoparticles accumulated inside the body by using a cooled Copper pickup coil and high T-c SQUID. The susceptibility measurement method with an excitation filed is used to detect the magnetic nanoparticles. Experimental results, such as contour map of the signal field and the distance-dependence of the detected signal, are shown. At present, we could detect 50 mu g of Fe3O4 particles that are located below the pickup coil at the distance of 30 mm. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：1634 / 1637

页数：4

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