Effect of Ti Atoms on Néel Relaxation Mechanism at Magnetic Heating Performance of Iron Oxide Nanoparticles
Source abstract
Abstract
The study was based on understanding the relationship between titanium (Ti) doping amount and magnetic heating performance of magnetite (Fe3O4). Superparamagnetic nanosized Ti-doped magnetite ((Fe1−x,Tix)3O4; x = 0.02, 0.03 and 0.05) particles were synthesized by sol-gel technique. In addition to (Fe1−x,Tix)3O4 nanoparticles, SiO2 coated (Fe1−x,Tix)3O4 nanoparticles were produced as core-shell structures to understand the effects of silica coating on the magnetic properties of nanoparticles. Moreover, the magnetic properties were associated with the Néel relaxation mechanism due to the magnetic heating ability of single-domain state nanoparticles. In terms of results, it was observed that the induced RF magnetic field for SiO2 coated (Fe0.97,Ti0.03)3O4 nanoparticles caused an increase in temperature difference (ΔT), which reached up to 22 °C in 10 min. The ΔT values of SiO2 coated (Fe0.97,Ti0.03)3O4 nanoparticles were very close to the values of uncoated Fe3O4 nanoparticles.
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Research context
OpenAlex topics: Characterization and Applications of Magnetic Nanoparticles · Magnetic Properties and Synthesis of Ferrites · Nanoparticle-Based Drug Delivery
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Renewable Energy and Oxide Hybrid Systems Laboratory, Department of Physics, Faculty of Science, Istanbul University, Istanbul 34314, Turkey
Department of Physics Engineering, Istanbul Technical University, Istanbul 34469, Turkey
Department of Physiology, Faculty of Medicine, Istanbul University, Istanbul 34390, Turkey
National Cheng Kung University, Tainan 701, Taiwan
Electronics Engineering Department, Kanagawa Institute of Industrial Science and Technology (KISTEC), Ebina 243-0435, Kanagawa, Japan
Tokyo Institute of Technology, Nagatsuta, Yokohama 226-8502, Kanagawa, Japan
Faculty of Medicine, Department of Clinical Microbiology, Istanbul University, Istanbul 34390, Turkey
Faculty of Medicine, Department of Infectious Diseases and Clinical Microbiology, Istanbul University, Istanbul 34390, Turkey
Funding
Istanbul University
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