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Magnetic Particle Imaging pp 35–40Cite as

Characterization of Magnetic Nanoparticles for Magnetic Particle Imaging by Magnetorelaxometry, AC Susceptibility, Magnetic Particle Spectroscopy and Static Magnetization Measurements

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Part of the book series: Springer Proceedings in Physics ((SPPHY,volume 140))

Abstract

To investigate various magnetic nanoparticle samples for their suitability as markers for Magnetic Particle Imaging (MPI), various magnetic techniques can be applied. Whereas Magnetic Particle Spectroscopy (MPS) directly provides the harmonic spectrum for a given excitation frequency and ac field amplitude, for the design of optimal markers, it is important to relate the measured harmonic spectra to specific nanoparticle properties. We have applied fluxgate magnetorelaxometry (MRX), ac susceptibility (ACS) up to 1 MHz, multivariate MPS - varying the excitation field amplitude and frequency as well as the magnitude of a superimposed dc field - and static magnetization measurements for the comprehensive characterization of representative magnetic nanoparticle samples. To distinguish between core and hydrodynamic properties, aqueous suspensions as well as immobilized samples were investigated.

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Authors and Affiliations

  1. Institut für Elektrische Messtechnik und Grundlagen der Elektrotechnik, TU Braunschweig, Hans-Sommer-Str. 66, 38106, Braunschweig, Germany

    Frank Ludwig, Thilo Wawrzik & Meinhard Schilling

Authors
  1. Frank Ludwig
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  2. Thilo Wawrzik
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  3. Meinhard Schilling
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Corresponding author

Correspondence to Frank Ludwig .

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Editors and Affiliations

  1. , Institute of Medical Engineering, University of Luebeck, Ratzeburger Allee 160, Luebeck, 23538, Germany

    Thorsten M. Buzug

  2. Forschungslaboratorien, Philips Technologie GmbH, Röntgenstr. 24-26, Hamburg, 22335, Germany

    Jörn Borgert

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© 2012 Springer-Verlag GmbH Berlin Heidelberg

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Ludwig, F., Wawrzik, T., Schilling, M. (2012). Characterization of Magnetic Nanoparticles for Magnetic Particle Imaging by Magnetorelaxometry, AC Susceptibility, Magnetic Particle Spectroscopy and Static Magnetization Measurements. In: Buzug, T., Borgert, J. (eds) Magnetic Particle Imaging. Springer Proceedings in Physics, vol 140. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-24133-8_6

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