Archivio Istituzionale della RicercaThe applicability of boron nitride nanotubes (BNNTs) containing Fe paramagnetic impurities as contrast agents in magnetic resonance imaging (MRI) was investigated. The measurement of longitudinal and transverse relaxation times of water protons in homogeneous aqueous dispersions of BNNTs wrapped with poly(L-lysine) at different concentrations allowed longitudinal (r(1)) and transverse (r(2)) relaxivities to be determined at 3T. The r(2) value was comparable to those of commercial superparamagnetic iron oxide nanoparticles, indicating that Fe-containing BNNTs have the potential to be used as T(2) contrast-enhancement agents in MRI at 3T.
Boron nitride nanotubes for boron neutron capture therapy as contrast agents in magnetic resonance imaging at 3 T / Menichetti, L; De Marchi, D; Calucci, L; Ciofani, Gianni; Menciassi, A; Forte, C.. - In: APPLIED RADIATION AND ISOTOPES. - ISSN 0969-8043. - 69:12(2011), pp. 1725-1727. [10.1016/j.apradiso.2011.02.032]
Boron nitride nanotubes for boron neutron capture therapy as contrast agents in magnetic resonance imaging at 3 T
CIOFANI, GIANNI;
2011
Abstract
The applicability of boron nitride nanotubes (BNNTs) containing Fe paramagnetic impurities as contrast agents in magnetic resonance imaging (MRI) was investigated. The measurement of longitudinal and transverse relaxation times of water protons in homogeneous aqueous dispersions of BNNTs wrapped with poly(L-lysine) at different concentrations allowed longitudinal (r(1)) and transverse (r(2)) relaxivities to be determined at 3T. The r(2) value was comparable to those of commercial superparamagnetic iron oxide nanoparticles, indicating that Fe-containing BNNTs have the potential to be used as T(2) contrast-enhancement agents in MRI at 3T.
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https://hdl.handle.net/11583/2621442
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