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  • 1980-1984
  • 1975-1979  (2)
  • ESR  (1)
  • Human cementum  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Journal of solution chemistry 6 (1977), S. 625-631 
    ISSN: 1572-8927
    Keywords: ESR ; spin exchange ; hydrophobic interaction ; nitroxide ; spin probe ; mixed solvents
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract Electron spin exchange rate constants and hyperfine coupling constants have been measured for two nitroxide spin probes in a number of isoviscous mixed solvents. Collision rate constants, normalized to 1 cP, are lower for solvents in which the major component is water. Further anomalies in the coupling constant for the systemtert-butanol-water are explained in terms of the marked concentration fluctuations known to occur in this solvent mixture. Substitution of a hydrophobic spin probe by one containing an −OH group leads to lowering of the spin exchange rate, possibly due to solvation of the probe.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Calcified tissue international 23 (1977), S. 147-150 
    ISSN: 1432-0827
    Keywords: Collagen ; Cementum ; Human cementum
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine , Physics
    Notes: Summary Human teeth were used to obtain cementum. Collagen could not be significantly solubilized from the cementum by salt and acetic acid extraction or by pepsin digestion. CNBr digestion (86%) of cementum and subsequent carboxymethyl cellulose chromatography suggests that human cementum consists of type I collagen only as identified by amino acid and hexose analyses.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
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