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Magnetically modified bentonite as a possible contrast agent in MRI of gastrointestinal tract
Bartonkova, H., Mashlan, M., Medrik, I., Jancik, D. and Zboril, R. Magnetically modified bentonite as a possible contrast agent in MRI of gastrointestinal tract Chemical Papers, Vol.61, No. 5, 2007, 413-416
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Document type:
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Článok z časopisu / Journal Article |
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Collection:
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Chemical papers
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| Author(s) |
Bartonkova, H.
Mashlan, M.
Medrik, I.
Jancik, D.
Zboril, R.
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| Title |
Magnetically modified bentonite as a possible contrast agent in MRI of gastrointestinal tract
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| Journal name |
Chemical Papers
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| Publication date |
2007
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| Year available |
2007
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| Volume number |
61
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| Issue number |
5
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| ISSN |
0366-6352
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| Start page |
413
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| End page |
416
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| Place of publication |
Poland
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| Publisher |
Versita
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| Collection year |
2007
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| Language |
english
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| Subject |
250000 Chemical Sciences
250500 Macromolecular Chemistry
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| Abstract/Summary |
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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