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Iron oxides in human spleen
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SYSNO ASEP 0447822 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Iron oxides in human spleen Tvůrce(i) Kopáni, M. (SK)
Miglierini, M. (SK)
Lančok, Adriana (UACH-T) ORCID, RID, SAI
Dekan, J. (SK)
Čaplovicová, M. (SK)
Jakubovský, J. (SK)
Boča, R. (SK)
Mrazova, H. (SK)Zdroj.dok. Biometals. - : Springer - ISSN 0966-0844
Roč. 28, č. 5 (2015), s. 913-928Poč.str. 16 s. Jazyk dok. eng - angličtina Země vyd. GB - Velká Británie Klíč. slova diffraction ; iron ; magnetic properties Vědní obor RIV CA - Anorganická chemie Institucionální podpora UACH-T - RVO:61388980 UT WOS 000361430000011 EID SCOPUS 84941997595 DOI 10.1007/s10534-015-9876-2 Anotace Iron is an essential element for fundamental cell functions and a catalyst for chemical reactions. Three samples extracted from the human spleen were investigated by scanning (SEM) and transmission electron microscopy (TEM), Mossbauer spectrometry (MS), and SQUID magnetometry. The sample with diagnosis of hemosiderosis (H) differs from that referring to hereditary spherocytosis and the reference sample. SEM reveals iron-rich micrometer-sized aggregate of various structures-tiny fibrils in hereditary spherocytosis sample and no fibrils in hemochromatosis. Hematite and magnetite particles from 2 to 6mum in TEM with diffraction in all samples were shown. The SQUID magnetometry shows different amount of diamagnetic, paramagnetic and ferrimagnetic structures in the tissues. The MS results indicate contribution of ferromagnetically split sextets for all investigated samples. Their occurrence indicates that at least part of the sample is magnetically ordered below the critical temperature. The iron accumulation process is different in hereditary spherocytosis and hemosiderosis. This fact may be the reason of different iron crystallization. Pracoviště Ústav anorganické chemie Kontakt Jana Kroneislová, krone@iic.cas.cz, Tel.: 311 236 931 Rok sběru 2016
Počet záznamů: 1