Clusters of magnetic nanoparticles as contrast agents for MRI: effect of aggregation on T2 relaxivity

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00023001%3A_____%2F15%3A00059492" target="_blank" >RIV/00023001:_____/15:00059492 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/46504711:_____/15:#0000423

Výsledek na webu

<a href="http://ieeexplore.ieee.org/xpl/abstractReferences.jsp?arnumber=7113872" target="_blank" >http://ieeexplore.ieee.org/xpl/abstractReferences.jsp?arnumber=7113872</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1109/TMAG.2015.2438112" target="_blank" >10.1109/TMAG.2015.2438112</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Clusters of magnetic nanoparticles as contrast agents for MRI: effect of aggregation on T2 relaxivity

Popis výsledku v původním jazyce

The effect of aggregation of magnetic nanoparticles on the transverse relaxivity (r2) is analyzed with respect to the size of clusters. The nanoparticles employed are based on La0.75Sr0.25MnO3 ferromagnetic phase with the mean size of crystallites dXRD =26 nm synthetized via sol-gel route followed by thermal treatment and mechanical processing. The subsequent silica coating provides colloidally stable particles whose magnetic cores are mostly composed of compact clusters of manganite crystallites. Theproduct has been subjected to repeated differential centrifugation and several size fractions, possessing the same dXRD but differing in the effective size of magnetic cores, are isolated. Thorough analyses of their size distributions by transmission electron microscopy and dynamic light scattering measurements are carried out together with SQUID magnetometry. The concentration of particles in aqueous suspensions is accurately determined by atomic absorption spectroscopy and a detailed s

Název v anglickém jazyce

Clusters of magnetic nanoparticles as contrast agents for MRI: effect of aggregation on T2 relaxivity

Popis výsledku anglicky

The effect of aggregation of magnetic nanoparticles on the transverse relaxivity (r2) is analyzed with respect to the size of clusters. The nanoparticles employed are based on La0.75Sr0.25MnO3 ferromagnetic phase with the mean size of crystallites dXRD =26 nm synthetized via sol-gel route followed by thermal treatment and mechanical processing. The subsequent silica coating provides colloidally stable particles whose magnetic cores are mostly composed of compact clusters of manganite crystallites. Theproduct has been subjected to repeated differential centrifugation and several size fractions, possessing the same dXRD but differing in the effective size of magnetic cores, are isolated. Thorough analyses of their size distributions by transmission electron microscopy and dynamic light scattering measurements are carried out together with SQUID magnetometry. The concentration of particles in aqueous suspensions is accurately determined by atomic absorption spectroscopy and a detailed s

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BM - Fyzika pevných látek a magnetismus

OECD FORD obor

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Projekt

<a href="/cs/project/FR-TI3%2F521" target="_blank" >FR-TI3/521: Technologie přípravy nových magnetických nanočástic pro diagnostiku a terapii v onkologii</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2015

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

IEEE transactions on magnetics

ISSN

0018-9464

e-ISSN

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Svazek periodika

2015

Číslo periodika v rámci svazku

11

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

4

Strana od-do

5300804

Kód UT WoS článku

000364770500373

EID výsledku v databázi Scopus

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