Synthesis and Characterizations of Surface-Coated Superparamagentic Magnetite Nanoparticles

Title
Synthesis and Characterizations of Surface-Coated Superparamagentic Magnetite Nanoparticles
Author(s)
김기현차유정이준식남백일김민정[김민정]좌용호[좌용호]김동호
Keywords
IRON-OXIDE NANOPARTICLES; GAMMA-FE2O3 NANOPARTICLES; HYPERTHERMIA; PARTICLES; NANOCOMPOSITES; BIOMEDICINE
Issue Date
201002
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Citation
IEEE TRANSACTIONS ON MAGNETICS, v.46, no.2, pp.443 - 446
Abstract
The uncoated magnetite and the 2, 3-meso-dimercaptosuccinic acid (DMSA)-coated Fe(3)O(4) nanoparticles were synthesized by a co-precipitation method, respectively. The DMSA surface modification on magnetite nanoparticles was observed by FT-IR. The average particle sizes of the uncoated magnetite and the DMSA coated magnetite were exhibited approximately 10.4 and 12.3 nm by TEM results. DMSA surface-coated Fe(3)O(4) can introduce a dense and thin outer hydroxyl group (-OH) shell. In order to characterize the magnetic behaviors, the magnetization processes of the magnetic nanoparticles were measured with the temperature range of 5 K to 300 K. The mean blocking temperatures of the uncoated Fe(3)O(4) and the DMSA surface-coated Fe(3)O(4) exhibited about 172 +/- 28 K and 215 +/- 30 K, respectively. The value of magnetization of the DMSA-coated Fe(3)O(4) nanoparticles was not so different with that of the uncoated Fe(3)O(4).
URI
http://hdl.handle.net/YU.REPOSITORY/22948http://dx.doi.org/10.1109/TMAG.2009.2033205
ISSN
0018-9464
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이과대학 > 물리학과 > Articles
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