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  • 2,3-bisphosphoglycerate  (1)
  • B-metal perovskites  (1)
Materialart
Erscheinungszeitraum
Schlagwörter
  • 1
    Digitale Medien
    Digitale Medien
    Springer
    Catalysis letters 39 (1996), S. 97-104 
    ISSN: 1572-879X
    Schlagwort(e): methanol oxidation ; B-metal perovskites ; SrSn1−x Sb x O3
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Chemie und Pharmazie
    Notizen: Abstract Ceramic model catalyst materials of general formula SrSn1−x Sb x O3 are synthesised by solid state reaction. X-ray diffraction shows the materials to be single phase over the composition range 0 ⩽x⩽0.085, with a second phase, identified as SrSb2O5, being produced at higher antimony doping levels. XPS, Auger electron spectroscopy and valence band photoemission show strong segregation of Sb to the surface of the material even within the single phase regime. The catalytic properties of the materials are examined using methanol oxidation as a test reaction. The activity and selectivity to formaldehyde production shown by these materials is found to be strongly correlated with the attainment of the bulk solubility limit of Sb in the SrSnO3 perovskite host.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 2
    ISSN: 1432-0428
    Schlagwort(e): Haemoglobin A1c ; Type 1 diabetes ; oxygen dissociation curve ; 2,3-bisphosphoglycerate ; p50
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Summary Increased erythrocyte 2,3-bisphosphoglycerate concentrations are associated with increased haemoglobin glycosylation in patients with Type 1 diabetes mellitus who have no cause or symptoms of hypoxic stress. This change in 2,3-bisphosphoglycerate metabolism is additional to its response to changes in circulating haemoglobin concentration. Statistical analysis of data showed that erythrocyte 2,3-bisphosphoglycerate concentration did not correlate with the absolute concentration of circulating haemoglobin A1c, but with the proportion of haemoglobin glycosylated. This finding is consistent with the hypothesis that it is changes in the position of the erythrocyte oxygen dissociation curve which modulate the increase in 2,3-bisphosphoglycerate synthesis upon haemoglobin A1c formation.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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