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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Colloid & polymer science 261 (1983), S. 70-73 
    ISSN: 1435-1536
    Keywords: Diffusion coefficient ; Anticancer drug ; Uracil ; Diffusion cell method and Uridine
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract The measurement of the diffusion coefficients of anticancer drugs and compounds having a similar structure in aqueous solution at 30 °C are carried out and the effect of some groups affecting the diffusion coefficients is investigated. The measurements of viscosity are also carried out in order to obtain the viscosity coefficient. The radius of molecule from the diffusion coefficients is in agreement with the value from the viscosity measurements. Under the concentration range studied, it seem that these compounds have a same state, for example, monomer or dimer. However, from Van der Waals radius of the results obtained, these solutes are monomer state. In spite of a large size, the diffusion coefficient of Uridine-5′-monophosphoric acid indicates a high value because of the potential gradient occurs in diffusion. From the result, 5-fluoro-2′-deoxy-5′-monophosphoric acid diffuses quickly in human body in spite of the large molecular weight.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Colloid & polymer science 259 (1981), S. 350-353 
    ISSN: 1435-1536
    Keywords: Anticancer drug ; 1-(2-tetrahydrofuryl)-5-fluorouracil ; Sodium poly-α ; L-glutamate ; Interaction ; Viscosity
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: Zusammenfassung Die Wechselwirkung zwischen 1-(2-Tetrahydrofuryl)-5-fluorouracil und Na-Poly-α,L-glutamat wurde mit den Methoden der Spektroskopie und der Viskositätsmessung untersucht. Aus den Bindungsdaten wurden die molare Änderung von Entropie und Enthalpie und die Zahl der Brückenstellen des Polymeren berechnet. Der Wert von ΔG° beträgt ca. −10 Kcal/mol. Die Affinität ist also sehr groß.
    Notes: Summary The interaction of an anticancer drug, 1-(2-tetrahydrofuryl)-5-fluorouracil with sodium poly-α,L-glutamate in aqueous solution was studied with a spectral method and viscosity measurement. From the binding data, the molar change in enthalpy, entropy and the number of binding sites on polymer were calculated. The standard affinity of 1-(2-tetrahydrofuryl)-5-fluorouracil is about −10 kcal/ol with sodium poly-α,L-glutamate. The affinity is also very high.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
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