https://scholars.lib.ntu.edu.tw/handle/123456789/409344
標題: | Derivation of analytical expressions for the electrical potential distribution in lipid structures | 作者: | Tseng S. Jiang J.-M. Hsu J.-P. |
公開日期: | 2005 | 卷: | 109 | 期: | 16 | 起(迄)頁: | 8180-8184 | 來源出版物: | Journal of Physical Chemistry B | 摘要: | The electrical potential inside a lipid structure, which is described by a modified Poisson-Boltzmann equation in the literature (Borukhov et al. Electrochim. Acta 2000, 46, 221), is solved, taking into account the effects of ionic sizes. Here, a micelle comprises an ionic surfactant layer and an aqueous core; the dissociation of the former yields a charged surface. The governing equation, which was solved numerically in a previous study for spherical geometry (Hsu et al. J. Phys. Chem. B 2003, 107, 14429), is solved analytically in this study for planar, cylindrical, and spherical geometries. The analytical results obtained are readily applicable for the evaluation of the spatial distributions of counterions inside a lipid structure. We show that if the linear size of a reverse micelle is fixed, the degree of dissociation of the surfactant layer follows the order planar > cylindrical > spherical. ? 2005 American Chemical Society. |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/409344 | ISSN: | 15206106 | DOI: | 10.1021/jp044238b |
顯示於: | 化學工程學系 |
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