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Proceedings Paper

The analysis of nanoparticle magnetization vibration using magnetic spectroscopy
Author(s): John B. Weaver; Adam M. Rauwerdink; Eric W. Hansen
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Paper Abstract

The nanoparticle magnetization induced by a sinusoidal field is a distorted sinusoid and the amount of the distortion is determined by the mobility of the magnetizations. The distortion is higher for nanoparticle magnetizations with limited mobility. The mobility of the magnetizations is influenced by a variety of factors that are important in biomedical applications: temperature, viscosity and binding are perhaps the most obvious. The distortion can be quantified by a ratio of the Fourier coefficients, which is independent of concentration and can be measured in vivo. For example, we have introduced a method of measuring the temperature in vivo and the method can be extended to measure the other factors that influence the mobility of the magnetization.

Paper Details

Date Published: 27 February 2009
PDF: 9 pages
Proc. SPIE 7262, Medical Imaging 2009: Biomedical Applications in Molecular, Structural, and Functional Imaging, 72622P (27 February 2009); doi: 10.1117/12.816406
Show Author Affiliations
John B. Weaver, Dartmouth-Hitchcock Medical Ctr. (United States)
Dartmouth College (United States)
Adam M. Rauwerdink, Dartmouth College (United States)
Eric W. Hansen, Dartmouth College (United States)


Published in SPIE Proceedings Vol. 7262:
Medical Imaging 2009: Biomedical Applications in Molecular, Structural, and Functional Imaging
Xiaoping P. Hu; Anne V. Clough, Editor(s)

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