Journal
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
Volume 323, Issue 20, Pages 2487-2492Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jmmm.2011.05.022
Keywords
Iron-oxide nanoparticles; T-2 relaxation time; Motional averaging effects; Coating effects
Funding
- Spanish Consolider Project [CSD2007-00041]
- ICREA Funding Source: Custom
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The experimental transverse relaxivity T-2,T-exp of protons in water suspensions of spherical SiO2 shelled gamma-Fe2O3 nanoparticle clusters of different sizes is analyzed based on existing models. It is shown that T-2,exp can be significantly larger than the modelling relaxivity, which may be attributed to nanosphere aggregations. (C) 2011 Elsevier BY. All rights reserved.
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