Nanomagnets for ultra-high field MRI: Magnetic properties and transverse relaxivity of silica-coated ε-Fe.sub.2./sub.O.sub.3./sub.

0519491 - FZÚ 2020 RIV NL eng J - Článek v odborném periodiku
Kubíčková, Lenka - Brázda, Petr - Veverka, Miroslav - Kaman, Ondřej - Herynek, V. - Vosmanská, M. - Dvořák, P. - Bernášek, K. - Kohout, J.
Nanomagnets for ultra-high field MRI: Magnetic properties and transverse relaxivity of silica-coated ε-Fe₂O₃.
Journal of Magnetism and Magnetic Materials. Roč. 480, June (2019), s. 154-163. ISSN 0304-8853. E-ISSN 1873-4766
Grant CEP: GA ČR GA16-04340S
Institucionální podpora: RVO:68378271
Klíčová slova: epsilon polymorph of ferric oxide * relaxometry * magnetic nanoparticles * contrast agents * motional averaging and static dephasing regimes
Obor OECD: Condensed matter physics (including formerly solid state physics, supercond.); Condensed matter physics (including formerly solid state physics, supercond.) (UEM-P)
Impakt faktor: 2.717, rok: 2019
Způsob publikování: Omezený přístup
https://doi.org/10.1016/j.jmmm.2019.02.067

Magnetic nanoparticles of iron oxides have received extensive attention in the biomedical research, e.g. as prospective contrast agents for T2-weighted magnetic resonance imaging (MRI). The ability of a contrast agent to enhance the relaxation rate of 1H nuclei in its vicinity is quantitatively described by its relaxivity. We present the first case study considering ε-Fe2O3 nanomagnets for prospective application in biomedicine, in particular for MRI in ultra-high fields. The study is complemented by a thorough investigation of magnetic properties of the nanoparticles, revealing some interesting anomalies.

Trvalý link: http://hdl.handle.net/11104/0304466