Excitatory Phenomena in Artificial Membranes Consisting of Surfactant

表面活性剂人工膜的兴奋现象

• 批准号: 01420018
• 负责人: KAWAKUBO Tatsuyuki
• 金额: $ 5.63万
• 依托单位: Tokyo Institute of Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (A)
• 财政年份: 1989
• 资助国家: 日本
• 起止时间: 1989 至 1991
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-01420018/
• 关键词: Surfactant; Artificial Membrane; Membrane Excitation; Micelle; Electrical Oscillation

he objects of the research are divided into the following two kinds of systems.1. Porous filters impregnated with surfactantsAn excitatory potential generated in response to stimulation by a current pulse has been examined on an artificial membrane composed of a Nuclepore filter which was impregnated with sorbitan monooleate and set between aqueous solutions of KC1 with different concentrations. The excitatory potential response of rectangular shape was found to occur above a threshold value of the pulse height for current stimulation and it discretely increased with rising current stimulation.2. Interface between oil and an aqueous solution of surfactantOscillatory behaviors in response to current-clamp and voltage-clamp stimulation were examined on a water/oil/water system consisting of an aqueous solution of sodium oleate as surfactant, nitrobenzene and an aqueous solution of sodium chloride. A stable oscillation with a period of 10 min. was observed only when the strength of the stimulation lay within a specific range of values. Further, this potential oscillation was found to follow a turbulent flow of the aqueous solution of surfactant near the interface.

研究对象分为以下两类系统： 1．浸渍有表面活性剂的多孔过滤器在由 Nuclepore 过滤器组成的人工膜上检查了响应电流脉冲刺激而产生的兴奋电位，该膜由浸渍有脱水山梨糖醇单油酸酯并设置在不同浓度的 KCl 水溶液之间的 Nuclepore 过滤器组成。发现矩形兴奋电位反应出现在电流刺激的脉冲高度阈值以上，并且随着电流刺激的增加而离散地增加。 2．油和表面活性剂水溶液之间的界面在由作为表面活性剂的油酸钠水溶液、硝基苯和氯化钠水溶液组成的水/油/水系统上检查了响应电流钳和电压钳刺激的振荡行为。稳定振荡，周期为 10 分钟。仅当刺激强度处于特定值范围内时才观察到。此外，发现这种电势振荡遵循界面附近表面活性剂水溶液的湍流。

项目成果

H.Suzuki,Y.Tsuchiya and T.Kawakubo: "A Short Period Oscillation in a Water/Oil/Water system" Biophys.Chem.40. 149-153 (1991)

H.Suzuki、Y.Tsuchiya 和 T.Kawakubo：“水/油/水系统中的短周期振荡”Biophys.Chem.40。

T.Kawakubo and K.Fukunaga: "Oscillatory Behavior of a Water/oil Interface System in Response to Currentーclamp and Voltageーclamp Stimulation" Biophysical Chemistry. 35. 113-117 (1990)

T.Kawakubo 和 K.Fukunaga：“水/油界面系统响应电流钳和电压钳刺激的振荡行为”生物物理化学 35. 113-117 (1990)。

H. Hirano, Y. Tsuchiya and T. Kawakubo: "Excitatory Potential of Artificial Membrane in Response to Current Pules Stimulation" Biophys. Chem.36. 133-139 (1990)

H. Hirano、Y. Tsuchiya 和 T. Kawakubo：“人工膜响应电流脉冲刺激的兴奋潜力”生物物理学。

H.Suzuki,T.Tsuchiya and T.Kawakubo: "A Short Period Oscillation in a Water/Oil/Water System" Biophysical Chemistry. 40. 149-153 (1991)

H.Suzuki、T.Tsuchiya 和 T.Kawakubo：“水/油/水系统中的短周期振荡”生物物理化学。

T.Kawakubo: "Advanced Technical Ceramics(分担)" Academic Press,Inc., 353 (1989)

T.Kawakubo：“先进技术陶瓷”学术出版社，353（1989）