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

DongHyun Kim | Zendy; Yoshinori Tamada | Zendy; Teruo Ono | Zendy; S. D. Bader | Zendy; Elena A. Rozhkova | Zendy; V. Novosad | Zendy

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

Author(s) -

DongHyun Kim,

Yoshinori Tamada,

Teruo Ono,

S. D. Bader,

Elena A. Rozhkova,

V. Novosad

Publication year - 2014

Publication title -

journal of nanoscience and nanotechnology

Language(s) - English

Resource type - Journals

eISSN - 1533-4899

pISSN - 1533-4880

DOI - 10.1166/jnn.2014.8471

Subject(s) - materials science , nanoparticle , magnetic nanoparticles , ligand (biochemistry) , gadolinium , saturation (graph theory) , nuclear magnetic resonance , magnetic core , shell (structure) , magnetic hyperthermia , nanotechnology , analytical chemistry (journal) , organic chemistry , chemistry , composite material , metallurgy , biochemistry , receptor , mathematics , physics , engineering , combinatorics , electrical engineering , electromagnetic coil

FePt-Fe3O4 core-shell nanoparticles functionalized with 3,4-dihydroxyphenylacetic acid (DOPAC) and dimercaptosuccinic acid (DMSA) ligands were synthesized and characterized. We 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. The synthesized magnetic nanoparticles were evaluated for applications in magnetic hyperthermia and magnetic resonance imaging contrast enhancement.

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