Magnetic Measurement of SPIONs using NVs in Diamond
ORAL
Abstract
Superparamagnetic iron oxide nanoparticles (SPIONs) have numerous biological, magnetic, and chemical applications. Their nontoxicity and functionalizability supports medical applications as temporally and spatially controlled nanovectors for drug delivery, markers for enhanced MRI sensitivity, and for externally controlled hyperthermia in tumors. While bulk magnetic properties of SPIONs have been the subject of numerous studies, the magnetic properties of single SPIONs aren't well understood. Nitrogen vacancy defects in diamond are particularly suitable for characterizing isolated nanoparticles due to their extreme sensitivity to local magnetic fields. We characterize the magnetic properties of SPIONs of varying size and density, deposited on the surface of NV implanted diamond.
*This work was funded by the Sandia National Laboratory LDRD program and at the Center for Integrated Nanotechnologies, an Office of Science User Facility operated for the U.S. Department of Energy (DOE) Office of Science. Sandia National Laboratories is a multi-mission laboratory managed and operated by National Technology and Engineering Solutions of Sandia, LLC, a wholly owned subsidiary of Honeywell International, Inc., for the DOE's National Nuclear Security Administration under contract DE-NA0003525.
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Presenters
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Maziar Saleh Ziabari
- Sandia National Laboratories