What is it about?
We introduced iron(III) ions on oxidized multiwall carbon nanotubes. It was found that they make the relaxation processes (NMR, MRI) much more efficient that the substrates - oxidized but free from Fe(3+) ions nanotubes.
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Why is it important?
Such reagents acceleration relaxation of neighboring water protons (called contrast agents) help to recognize ill and healthy tissues during MRI examinations.
Perspectives
It was interesting to find that iron(III) ions have such a high affinity to the oxidized surface of carbon nanotubes. Moreover, we were surprised, that the Fe(III)-enriched nanotubes are very effective in T2 relaxation enhancement, while free Fe(III) ions are rather more effective in T1 acceleration. These discoveries open new possibilities of nanotube modifications in order to adjust them to the applications as MRI contrast agents.
Dr Nikodem Kuźnik
Silesian University of Technology
Read the Original
This page is a summary of: Fe3+ ions anchored to Fe@O-MWCNTs as double impact T2 MRI contrast agents, Materials Letters, December 2014, Elsevier,
DOI: 10.1016/j.matlet.2014.07.174.
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