• Letter
  • Open Access

Estimating the Spatial Orientation of Immobilized Magnetic Nanoparticles with Parallel-Aligned Easy Axes

Martin Möddel, Florian Griese, Tobias Kluth, and Tobias Knopp
Phys. Rev. Applied 16, L041003 – Published 28 October 2021

Abstract

Advances in micromachinery and nanotechnology, such as magnetically actuated microrobots for navigating in viscous environments, are important driving forces in medicine. Recently, it has been shown that the spatial orientation of an ensemble of immobilized nanoparticles with parallel-aligned magnetic easy axes has an effect on the magnetization response to an external dynamic magnetic field. Here, we introduce a method that allows us to estimate the spatial orientation of this axis from the magnetization response and experimentally study a potential application scenario.

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  • Received 24 February 2021
  • Revised 2 March 2021
  • Accepted 3 September 2021

DOI:https://doi.org/10.1103/PhysRevApplied.16.L041003

Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.

Published by the American Physical Society

Physics Subject Headings (PhySH)

Condensed Matter, Materials & Applied PhysicsInterdisciplinary PhysicsGeneral PhysicsPhysics of Living Systems

Authors & Affiliations

Martin Möddel1,2,*, Florian Griese1,2, Tobias Kluth3,4, and Tobias Knopp1,2

  • 1Section for Biomedical Imaging, University Medical Center Hamburg-Eppendorf, Hamburg 20246, Germany
  • 2Institute for Biomedical Imaging, Hamburg University of Technology, Hamburg 21073, Germany
  • 3Center for Industrial Mathematics, University of Bremen, Bremen 28359, Germany
  • 4Center for Optimization and Approximation, University of Hamburg, Hamburg 20146, Germany

  • *m.hofmann@uke.de

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Issue

Vol. 16, Iss. 4 — October 2021

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