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Synthesis and Characterizations of Surface-Coated Superparamagentic Magnetite Nanoparticles
- Authors
- Cha, Yu-Jung; Kim, Min-Jung; Choa, Yong-Ho; Kim, Jongryoul; Nam, Baekil; Lee, Joonsik; Kim, Dong Ho; Kim, Ki Hyeon
- Issue Date
- Feb-2010
- Publisher
- Institute of Electrical and Electronics Engineers
- Keywords
- Magnetic particle; magnetite; magnetization; polymer; superparamagnetic
- Citation
- IEEE Transactions on Magnetics, v.46, no.2, pp 443 - 446
- Pages
- 4
- Indexed
- SCI
SCIE
SCOPUS
- Journal Title
- IEEE Transactions on Magnetics
- Volume
- 46
- Number
- 2
- Start Page
- 443
- End Page
- 446
- ISSN
- 0018-9464
1941-0069
- Abstract
- The uncoated magnetite and the 2, 3-meso-dimercaptosuccinic acid (DMSA)-coated Fe3O4 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 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.
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Related Researcher
- Kim, Jong ryoul
- ERICA 첨단융합대학 (ERICA 신소재·반도체공학전공)