𝔖 Bobbio Scriptorium
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Magnetically modified bentonite as a possible contrast agent in MRI of gastrointestinal tract

✍ Scribed by H. Bartonkova; M. Mashlan; I. Medrik; D. Jancik; R. Zboril


Book ID
111491082
Publisher
Versita
Year
2007
Tongue
English
Weight
316 KB
Volume
61
Category
Article
ISSN
0366-6352

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✦ Synopsis


Abstract

A composite of iron oxide nanoparticles and mineral matrix has been studied by XRD, Mössbauer spectroscopy, and TEM. Magnetite and superparamagnetic magnetite have been identified by Mössbauer spectroscopy in the nanocomposite. A relationship between the hyperfine parameters and iron oxide particle size has been confirmed by TEM. The optimal concentration of “magnetite—bentonite” composite, when the MRI signal is fully reduced, was found for using this composite as a negative contrast agent.


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