The Effect of Ligands on FePt–Fe₃O₄ Core–Shell Magnetic Nanoparticles

Journal Article · Sat Mar 01 04:00:00 UTC 2014 · Journal of Nanoscience and Nanotechnology

DOI: https://doi.org/10.1166/jnn.2014.8471 · OSTI ID:1357005

Kim, Dong-Hyun  ^[1]; Tamada, Yoshinori ^[2]; Ono, Teruo ^[3]; Bader, Samuel D. ^[4]; Rozhkova, Elena A. ^[4]; Novosad, Valentyn ^[4]

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1. Northwestern Univ. Feinberg School of Medicine, Chicago, IL (United States)
2. Univ. of Tokyo (Japan)
3. Kyoto Univ. (Japan)
4. Argonne National Lab. (ANL), Argonne, IL (United States)

FePt–Fe₃O₄ core–shell nanoparticles functionalized with 3,4-dihydroxyphenylacetic acid (DOPAC) and dimercaptosuccinic acid (DMSA) ligands were synthesized and characterized. We also found that the DOPAC ligand enhances the magnetic properties of the FePt–Fe₃O₄ particles, in comparison with the DMSA ligand, which induces the oxidation of the shell layer that causes a significant reduction of the saturation magnetization. We evaluated the synthesized magnetic nanoparticles for applications in magnetic hyperthermia and magnetic resonance imaging contrast enhancement.

• Research Organization: Argonne National Lab. (ANL), Argonne, IL (United States)
• Sponsoring Organization: USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
• Grant/Contract Number: AC02-06CH11357
• OSTI ID: 1357005
• Report Number(s): ANL/CNM/JA--74733; 74733
• Journal Information: Journal of Nanoscience and Nanotechnology, Journal Name: Journal of Nanoscience and Nanotechnology Journal Issue: 3 Vol. 14; ISSN 1533-4880
• Publisher: American Scientific PublishersCopyright Statement
• Country of Publication: United States
• Language: English