Hachmöller, O.* ; Buzanich, A.G.* ; Aichler, M. ; Radtke, M.* ; Dietrich, D.* ; Schwamborn, K.* ; Lutz, L.* ; Werner, M.* ; Sperling, M.* ; Walch, A.K. ; Karst, U.*
Elemental bioimaging and speciation analysis for the investigation of Wilson's disease using μXRF and XANES.
Metallomics 8, 648-653 (2016)
A liver biopsy specimen from a Wilson's disease (WD) patient was analyzed by means of micro-X-ray fluorescence (μXRF) spectroscopy to determine the elemental distribution. First, bench-top μXRF was utilized for a coarse scan of the sample under laboratory conditions. The resulting distribution maps of copper and iron enabled the determination of a region of interest (ROI) for further analysis. In order to obtain more detailed elemental information, this ROI was analyzed by synchrotron radiation (SR)-based μXRF with a beam size of 4 μm offering a resolution at the cellular level. Distribution maps of additional elements to copper and iron like zinc and manganese were obtained due to a higher sensitivity of SR-μXRF. In addition to this, X-ray absorption near edge structure spectroscopy (XANES) was performed to identify the oxidation states of copper in WD. This speciation analysis indicated a mixture of copper(i) and copper(ii) within the WD liver tissue.
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Publication type
Article: Journal article
Document type
Scientific Article
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Keywords
Ray-fluorescence Microscopy; Synchrotron-radiation; Oxidation-state; Copper; Gene; Spectroscopy; Spectrometry; Diagnosis; Atpase; Liver
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Language
english
Publication Year
2016
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2016
ISSN (print) / ISBN
1756-5901
e-ISSN
1756-591X
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Volume: 8,
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Pages: 648-653
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Royal Society of Chemistry (RSC)
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Cambridge
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Peer reviewed
POF-Topic(s)
30205 - Bioengineering and Digital Health
30504 - Mechanisms of Genetic and Environmental Influences on Health and Disease
Research field(s)
Enabling and Novel Technologies
PSP Element(s)
G-500390-001
G-500300-001
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Erfassungsdatum
2016-03-23