Sequestration of Ca in simian nasal mucosa [Elektronisk resurs] Determination of Ca molarity in ex vivo tissue by simultaneous off-axis Scanning Transmission Ion Microscopy, Particle Induced X-Ray Emission and Elastic Backscattering Spectrometry
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Whitlow, Harry J. (författare)
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Nagy, Gyula (författare)
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Henderson, Nicholas (författare)
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Greco, Richard (författare)
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Deoli, Naresh (författare)
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Smith, Karen M. (författare)
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Morgan, Karen (författare)
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Villinger, Francois (författare)
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Uppsala universitet Teknisk-naturvetenskapliga vetenskapsområdet (utgivare)
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Uppsala universitet Teknisk-naturvetenskapliga vetenskapsområdet (utgivare)
- Publicerad: Elsevier BV, 2023
- Engelska.
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Ingår i: Nuclear Instruments and Methods in Physics Research Section B. - 0168-583X. ; 539, 152-161
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Sammanfattning
Ämnesord
Stäng
- A technique to determine the molar concentration of elements in ex vivo tissue sections by Particle Induced X-ray Emission (PIXE) has been developed. The method is based on simultaneous off-axis scanning transmission ion microscopy (OA-STIM) and Elastic Backscattering Spectrometry (EBS) measurement of the sample thickness and major element (H, C, N, O) composition. The method was applied to determine the molarity of localised Ca concentration hot-spots in the outer epithelium tissue of nasal mucosa of a rhesus macaque subject infected with simian immunodeficiency virus (SIV). The results show Ca sequestration in concentration hot-spots and outer epithelial tissue that significantly exceeded the Ca concentration in the surrounding tissues. This may originate from mineralisation and/or Ca enhancement in goblet cells.
Ämnesord
- Natural Sciences (hsv)
- Physical Sciences (hsv)
- Subatomic Physics (hsv)
- Naturvetenskap (hsv)
- Fysik (hsv)
- Subatomär fysik (hsv)
- Medical and Health Sciences (hsv)
- Basic Medicine (hsv)
- Microbiology in the medical area (hsv)
- Medicin och hälsovetenskap (hsv)
- Medicinska och farmaceutiska grundvetenskaper (hsv)
- Mikrobiologi inom det medicinska området (hsv)
Genre
- government publication (marcgt)
Indexterm och SAB-rubrik
- MeV Ion Microprobe
- Off-axis Scanning Transmission Ion Microscopy
- (STIM)
- Particle Induced X-ray Emission (PIXE)
- Elastic Backscattering Spectrometry (EBS)
- Nasal mucosa
- Ca sequestration
- Simian Immunodeficiency Virus (SIV)
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Nuclear Instruments and Methods in Physics Research Section B