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  • Hyperoxia  (1)
  • Keywords. Potentiometry; Glycine; Cephalosporins; Complexes.  (1)
  • 2020-2021
  • 2000-2004  (2)
  • 1960-1964
  • 1
    Electronic Resource
    Electronic Resource
    Potentiometric Studies on SomeCephalosporin Complexes (2000)
    Springer
    Monatshefte für Chemie 131 (2000), S. 1031-1038 
    Details
    ISSN: 1434-4475
    Keywords: Keywords. Potentiometry; Glycine; Cephalosporins; Complexes.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Summary.  The interaction of Ca(II), Cu(II), Zn(II), Pb(II), and La(III) ions with the antibiotics cephalexin, cefadroxil, cephaloridine, and cefoperazone as secondary ligands was investigated potentiometrically. The formation constants were determined for a ligand-to-metal ratio of 1:1 at 25°C and KNO3. The protonation constants of the complexes were evaluated for the system . The order of stability of the binary and ternary complexes were examined. It was found that glycine adds preferably [M(II)-cephalosporin] rather than to the aqueous complexes of M(II). In all cases 1:1:1 complexes were formed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s007060070034
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  • 2
    Electronic Resource
    Electronic Resource
    Transport and Reaction at Endothelial Plasmalemma: Distinguishing Intra- From Extracellular Events (2000)
    Springer
    Annals of biomedical engineering 28 (2000), S. 1010-1018 
    Details
    ISSN: 1573-9686
    Keywords: Oxidation reduction ; Methylene blue ; Toluidine blue O ; Ubiquinone ; Mathematical modeling ; Multiple indicator dilution ; Lung cell culture ; Physiome ; Hyperoxia
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine , Technology
    Notes: Abstract The pulmonary endothelium is a chemical reactor that modifies blood composition in several ways, including reduction of the oxidized forms of certain redox active substances in the blood. The physiological functions of the transplasma membrane electron transport systems involved in the latter are not fully understood, but an argument is made that they are involved in antioxidant defense. In addition, the experimental approaches used to characterize the process, including studies at whole organ, cell culture, and subcellular levels, along with the use of mathematical modeling, may be representative of the physiome concept wherein a goal is the integration of information obtained at all levels of biological organization. In this article, separation of intra- and extracellular events involved in the disposition of redox active probes within the lungs is the particular example. © 2000 Biomedical Engineering Society. PAC00: 8716Uv, 8716Dg, 8715Rn, 8719Uv
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1114/1.1308490
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