Size and shape of sodium deoxycholate micellar aggregates

Gennaro Esposito, E. Giglio, N. V. Pavel, A. Zanobi

    Research output: Contribution to journalArticle

    Abstract

    From SAXS and ESR measurements carried out on sodium deoxycholate (NaDC) aqueous solutions as a function of NaDC and NaCl concentrations and temperature we have deduced the mean hydrodynamic radius, shape, and aggregation number of the micellar aggregates. The validity of a helical model previously proposed for NaDC micellar aggregates was satisfactorily checked. Some limits of the experimental techniques are discussed. A qualitative agreement between the data obtained from SAXS and ESR measurements was observed. The extent of micellar growth increases with the concentration of added NaCl and as the temperature is lowered. Much smaller changes than for the ionic strength were detected by increasing the NaDC concentration within the range 0.05-0.15 M.

    Original languageEnglish (US)
    Pages (from-to)356-362
    Number of pages7
    JournalJournal of Physical Chemistry
    Volume91
    Issue number2
    DOIs
    StatePublished - Jan 1 1987

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    Deoxycholic Acid
    Paramagnetic resonance
    Sodium
    sodium
    Ionic strength
    Agglomeration
    Hydrodynamics
    Temperature
    hydrodynamics
    aqueous solutions
    radii
    temperature

    ASJC Scopus subject areas

    • Engineering(all)
    • Physical and Theoretical Chemistry

    Cite this

    Esposito, G., Giglio, E., Pavel, N. V., & Zanobi, A. (1987). Size and shape of sodium deoxycholate micellar aggregates. Journal of Physical Chemistry, 91(2), 356-362. https://doi.org/10.1021/j100286a023

    Size and shape of sodium deoxycholate micellar aggregates. / Esposito, Gennaro; Giglio, E.; Pavel, N. V.; Zanobi, A.

    In: Journal of Physical Chemistry, Vol. 91, No. 2, 01.01.1987, p. 356-362.

    Research output: Contribution to journalArticle

    Esposito, G, Giglio, E, Pavel, NV & Zanobi, A 1987, 'Size and shape of sodium deoxycholate micellar aggregates', Journal of Physical Chemistry, vol. 91, no. 2, pp. 356-362. https://doi.org/10.1021/j100286a023
    Esposito, Gennaro ; Giglio, E. ; Pavel, N. V. ; Zanobi, A. / Size and shape of sodium deoxycholate micellar aggregates. In: Journal of Physical Chemistry. 1987 ; Vol. 91, No. 2. pp. 356-362.
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