Properties of magnetic nanoparticles in the Brownian relaxation range for liquid phase immunoassays

被引：38

作者：

Enpuku, K. ^{[1
]}

Tanaka, T.

Matsuda, T.

Dang, F.

Enomoto, N.

Hojo, J.

Yoshinaga, K.

Ludwig, F.

Ghaffari, F.

Heim, E.

Schilling, M.

机构：

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

[2] Kyushu Univ, Dept Appl Chem, Fukuoka 8190395, Japan

[3] Kyushu Inst Technol, Dept Appl Chem, Kitakyushu, Fukuoka 8048550, Japan

[4] TU Braunschweig, Inst Elect Measurement & Fundamental Elect Engn, D-38106 Braunschweig, Germany

来源：

JOURNAL OF APPLIED PHYSICS | 2007年 / 102卷 / 05期

关键词：

MAGNETORELAXOMETRY;

D O I：

10.1063/1.2775882

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Properties of magnetic nanoparticles in the Brownian relaxation region were studied. Using the magnetic nanoparticles that exhibit remanence, we measured the magnetic properties, such as static magnetization, magnetic relaxation, and alternating current susceptibility, in a solution. Comprehensive comparisons were made between the experimental results and the theoretical ones predicted from the Brownian relaxation. From the comparison, the distributions of the particle parameters, i.e., the magnetic moment and the relaxation time, were estimated. It was shown that all the magnetic properties can be well explained when we take into account the parameter distributions in the sample. (c) 2007 American Institute of Physics.

引用

页数：7

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