Experimental study on T2 relaxation time of protons in water suspensions of iron-oxide nanoparticles: Cases of composite nanospheres |
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| Authors: | D.-X. Chen E. TaboadaA. Roig |
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| Affiliation: | a ICREA and Departament de Física, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
b Institut de Ciència de Materials de Barcelona (ICMAB), CSIC, 08193 Bellaterra, Spain |
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| Abstract: | The experimental transverse relaxivity r2,exp of protons in water suspensions of spherical SiO2 shelled γ‐Fe2O3 nanoparticle clusters of different sizes is analyzed based on existing models. It is shown that r2,exp can be significantly larger than the modelling relaxivity, which may be attributed to nanosphere aggregations. |
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| Keywords: | Iron-oxide nanoparticles T2 relaxation time Motional averaging effects Coating effects |
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