What is it about?
We added Fe3+ to multiwall carbon nanotubes MWCNT and we observed an increased signal in magnetic resonance (NMR). Only one of the parameters in NMR was increased - transverse T2 relaxation. We also added several ligands, chelating agents to increase the amount Fe3+. The latter products had even better properties in NMR.
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Why is it important?
It is interesting that Fe3+ ions enriching the nanotubes enhance their effects in NMR. Carbon nanotubes, containing nanoiron are superparamagnetic materials acceleration T2 relaxation. While Fe3+ are know to accelerate T1 relaxation, while here they amplify T2 relaxation which is a unique feature.
Perspectives
It is another example of application of multiwall carbon nanotubes. Their modifications opens new possibilities. The products require in vivo tests for further assessment of application as MRI contrast agents.
Dr Nikodem Kuźnik
Silesian University of Technology
Read the Original
This page is a summary of: Amalgamation of complex iron(III) ions and iron nanoclusters with MWCNTs as a route to potential T2 MRI contrast agents, International Journal of Nanomedicine, May 2015, Taylor & Francis,
DOI: 10.2147/ijn.s81381.
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