Derivation of analytical expressions for the electrical potential distribution in lipid structures
學年 93
學期 2
出版（發表）日期 2005-04-28
作品名稱 Derivation of analytical expressions for the electrical potential distribution in lipid structures
作品名稱（其他語言）
著者 曾琇瑱; Tseng, Shio-jenn; Hsu, Jyh-ping; Jiang, J. M.
單位 淡江大學數學學系
出版者 American Chemical Society (ACS)
著錄名稱、卷期、頁數 Journal of Physical Chemistry B 109(16), pp.8180-8184
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.
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語言 en
ISSN 1520-6106
期刊性質 國內
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審稿制度 否
國別 TWN
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