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journal article·2017-05-01Open access

Zinc doped copper ferrite particles as temperature sensors for magnetic resonance imaging

Janusz H. Hankiewicz, Noweir Alghamdi, Nicholas M. Hammelev, Nick R. Anderson, Robert E. Camley, Karl Stupic, Marek Przybylski, Jan Zukrowski, Zbigniew J. Celinski

AIP Advances· Volume 7· Issue 5
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Source abstract

Abstract

We investigate the use of Cu0.35Zn0.65Fe2O4 particles as temperature-dependent sensors in magnetic resonance imaging (MRI). This material has a Curie temperature near 290 K, but in the large magnetic fields found in MRI scanners, there is a significant temperature-dependent magnetic moment near body temperature; 310 K. When the ferrite particles are doped into an agar gel, the temperature-dependent magnetic moment leads to a temperature-dependent broadening of the NMR linewidth for water protons and to a temperature-dependent image intensity for MRI, allowing one to make temperature maps within objects. The temperature resolution is about 1.3 K.
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Research context

OpenAlex topics: Atomic and Subatomic Physics Research · Characterization and Applications of Magnetic Nanoparticles · Ultrasound and Hyperthermia Applications

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Affiliations

UCCS BioFrontiers Center 1 , 1420 Austin Bluffs Parkway, Colorado 80918, USA

Department of Engineering Physics 2 Colorado School of Mines, , 1500 Illinois St. Golden, Colorado 80401, USA

National Institute of Standards and Technology 3 , Boulder, Colorado 80305, USA

AGH University of Science and Technology 4 Academic Centre for Materials and Nanotechnology, , 30-059 Krakow, Poland

AGH University of Science and Technology 5 Faculty of Physics and Applied Computer Science, , 30-059 Krakow, Poland

Funding

State of Colorado Bioscience Discovery Evaluation Grant · UCCS BioFrontiers Grant

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