Nuclear magnetic resonance in hexaferrite/maghemite composite nanoparticles

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F15%3A00450138" target="_blank" >RIV/68378271:_____/15:00450138 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.12693/APhysPolA.127.514" target="_blank" >http://dx.doi.org/10.12693/APhysPolA.127.514</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.12693/APhysPolA.127.514" target="_blank" >10.12693/APhysPolA.127.514</a>

Result language
angličtina
Original language name
Nuclear magnetic resonance in hexaferrite/maghemite composite nanoparticles
Original language description
Due to their bio-compatibility and non-toxicity, iron oxides are suitable for magnetic drug delivery or as materials for hyperthermia. Compounds of spinel structure (mag-netite/maghemite) are most frequently used, however, the desired magnetic propertiescan be reached by combining more phases (e.g., maghemite and hexaferrite) into a composite material. We employed NMR to investigate strongly inhomogeneous nanoparticle composites. Frequency-swept 57Fe NMR spectra of nanoparticle samples containing maghemite, hematite and M-phase of strontium hexaferrite were measured in zero external magnetic field at 4.2 K. Utilizing differences in optimal excitation field strengths and in relaxation times, we were able to resolve NMR signal assigned to hexagonal phase from signal which showed features attributed to maghemite.
Czech name
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Czech description
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Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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