帯電膜の界面現象--表面電荷の層分布を考慮した理論

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概要

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• Potential distribution across a charged membrane is discussed on the basis of a model proposed by Ohshima and Ohki (<I>Biophys. J</I>., 47, 673 (1985)), which assumes that membrane-fixed charges are distributed through a surface layer of non-zero thickness and that electrolyte ions can penetrate into this layer. This model smoothly unites two different concepts-the surface potential and the Donnan potential. Interfacial phenomena-electrophoresis, ion binding, electrostatic interaction of membranes, and effects of non-uniform charge distribution-are considered along the lines of the above model. It is shown that the Donnan potential distribution plays an important role in these phenomena.

• 日本膜学会の論文

著者

• 大島 広行

  東京理科大学薬学部・界面科学研究所

関連論文

• 帯電膜の界面現象--表面電荷の層分布を考慮した理論

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