NDLI: Synthesis and Characterizations of Surface-Coated Superparamagentic Magnetite Nanoparticles

Content Provider	IEEE Xplore Digital Library
Author	Yu-Jung Cha Min-Jung Kim Yong-Ho Choa Jongryoul Kim Baekil Nam Joonsik Lee Dong Ho Kim Ki Hyeon Kim
Copyright Year	1965
Abstract	The uncoated magnetite and the 2, 3-meso-dimercaptosuccinic acid (DMSA)-coated Fe₃O₄ nanoparticles were synthesized by a coprecipitation 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 Fe₃O₄ 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 Fe₃O₄ and the DMSA surface-coated Fe₃O₄ exhibited about 172 ±28 K and 215 ±30 K, respectively. The value of magnetization of the DMSA-coated Fe₃O₄ nanoparticles was not so different with that of the uncoated Fe₃O₄.
Sponsorship	IEEE Magnetics Society
Starting Page	443
Ending Page	446
Page Count	4
File Size	747196
File Format	PDF
ISSN	00189464
Volume Number	46
Issue Number	2
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-02-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Nanoparticles Magnetosphere Magnetic separation Saturation magnetization Iron Surface morphology Magnetic materials Polymers Temperature measurement Temperature distribution superparamagnetic Magnetic particle magnetite magnetization polymer
Content Type	Text
Resource Type	Article
Subject	Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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