Abstract
A sample of liver from the marine mammal Dugong dugong was found to have an iron concentration of 137 000 Μg g-1 Fe dry weight. Histological examination of the tissue revealed dense extracellular deposits of iron-containing particles about 40 to 80 Μm in diameter. Mössbauer spectra of the sample at temperatures between 17 and 200 K show superparamagnetic behaviour with a mean superparamagnetic blocking temperature of about 67 K, with the sextet being extinguished between 160 and 200 K. The blocking temperature and spectral parameters are indicative of the goethite-like form of hemosiderin that has previously been reported in some iron-loaded thalassemic human tissues.
Original language | English |
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Pages (from-to) | 899-904 |
Number of pages | 6 |
Journal | Hyperfine Interactions |
Volume | 91 |
Issue number | 1 |
DOIs |
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Publication status | Published - 1994 |