Time-resolved diamond magnetic microscopy of superparamagnetic nanoparticles

ORAL

Abstract

Magnetic nanoparticles have many biomedical applications including hyperthermia for cancer therapy, magnetic resonance imaging, and magnetic relaxation imaging. These applications require that the magnetic nanoparticles have uniform magnetic properties, size and morphology. We report progress on a nitrogen vacancy (NV) center widefield magnetic microscope which measures the Neel relaxation and hysteresis curve of many single magnetic nanoparticles. In addition, we report on progress to correlate these relaxation measurements to particles size via scanning electron microscope (SEM).

*NIH NIBIB Trailblazer, 1R21EB027405-01
NSF DMR 1809800
DOE LDRD Academic Alliance
CINT

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Presenters

  • Nate Ristoff

    • University of New Mexico

Authors

  • Nate Ristoff

    • University of New Mexico

  • Abdelghani Laraoui

    • University of Nebraska - Lincoln
    • Department of Mechanical & Materials Engineering, University of Nebraska - Lincoln

  • Ilja Fescenko

    • University of New Mexico

  • Joshua Damron

    • University of New Mexico

  • Nazanin Mosavian

    • University of New Mexico

  • Janis Smits

    • University of New Mexico

  • Andrey Jarmola

    • ODMR Technologies Inc.

  • Pauli Kehayias

    • Sandia National Laboratory

  • Maziar Salehziabari

    • University of New Mexico

  • Andrew M Mounce

    • Sandia National Laboratory
    • Sandia National Laboratories

  • Dale L Huber

    • Sandia National Laboratory
    • Sandia National Laboratories

  • Victor Acosta

    • University of New Mexico
    • Department of Physics & Astronomy, University of New Mexico