Comparison of the Magnetic Properties for the Surface-Modified Magnetite Nanoparticles

Title
Comparison of the Magnetic Properties for the Surface-Modified Magnetite Nanoparticles
Author(s)
김기현이준식좌용호[좌용호]김종렬[김종렬]
Keywords
FE3O4 NANOPARTICLES; PARTICLES
Issue Date
201110
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Citation
IEEE TRANSACTIONS ON MAGNETICS, v.47, no.10, pp.2874 - 2877
Abstract
The Fe(3)O(4) nanoparticles were synthesized by a coprecipitation method, and their particles were capsulated by 3-thiopheneacetic acid (3TA), 2, 3-meso-dimercaptosuccinic acid (DMSA) and Polyethylene glycol (PEG), respectively. The 3TA-, PEG-, and DMSA-coated Fe(3)O(4) nanoparticles are well dispersed in aqueous solution. The average particle sizes of the Fe(3)O(4) and the 3TA-, PEG-, and DMSA-coated magnetite nanoparticles were exhibited approximately 10.4, 12, 11, and 12 nm by TEM results. The mean blocking temperatures of the uncoated Fe(3)O(4) and the 3TA, PEG, DMSA surface-coated Fe(3)O(4) nanoparticles exhibited about 245 +/- 10 K, 220 +/- 10 K, 142 +/- 12 K, and 200 +/- 10 K, respectively. The values of g factor of the uncoated Fe(3)O(4) and the 3TA-, PEG-, and DMSA-coated Fe(3)O(4) nanoparticles were obtained 2.22, 2.21, 2.22, and 2.19, respectively.
URI
http://hdl.handle.net/YU.REPOSITORY/24451http://dx.doi.org/10.1109/TMAG.2011.2145414
ISSN
0018-9464
Appears in Collections:
이과대학 > 물리학과 > Articles
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