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Controlled aggregates of magnetite nanoparticles for highly sensitive MR contrast agent

Authors
 Jeon BS  ;  Cho EJ  ;  Yang HM  ;  Suh JS  ;  Huh YM 
Citation
 JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, Vol.9(12) : 7118-7122, 2009 
Journal Title
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY
ISSN
 1533-4880 
Issue Date
2009
MeSH
Contrast Media/chemical synthesis* ; Crystallization/methods ; Ferrosoferric Oxide/chemistry* ; Image Enhancement/methods* ; Macromolecular Substances/chemistry ; Magnetic Resonance Imaging/methods* ; Materials Testing ; Molecular Conformation ; Nanoparticles/chemistry* ; Nanoparticles/ultrastructure ; Nanotechnology/methods ; Particle Size ; Surface Properties
Abstract
We have prepared a magnetite encapsulated polymer nanocomposite (MEPN) by an emulsification-diffusion technique and found that the encapsulation efficiency could be precisely controlled according to the portion of magnetite and the capping ligand that covers the surface of the magnetite nanoparticles. the field-dependence and temperature dependence on magnetization, measured by a superconducting quantum interference device, demonstrate that there was no size effect of the magnetite nanoparticles on the encapsulation behavior. the size distribution and T2 relaxivity of prepared MEPNs were measured using magnetic resonance imaging for analysis of the effect of aggregation and it was verified that aggregates of the magnetite nanoparticles provide enhanced relaxation ability.
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Radiology (영상의학교실) > 1. Journal Papers
1. College of Medicine (의과대학) > Yonsei Biomedical Research Center (연세의생명연구원) > 1. Journal Papers
Yonsei Authors
Suh, Jin Suck(서진석) ORCID logo https://orcid.org/0000-0001-9455-9240
Cho, Eun Jin(조은진)
Huh, Yong Min(허용민) ORCID logo https://orcid.org/0000-0002-9831-4475
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/106009
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