Spatio-temporally developed phenomena by introducing anisotropy of chemical reaction fields and nonequilibrium conditions

通过引入化学反应场的各向异性和非平衡条件来研究时空发展的现象

• 批准号: 20550124
• 负责人: NAKATA Satoshi
• 金额: $ 3.16万
• 依托单位: Hiroshima University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2008
• 资助国家: 日本
• 起止时间: 2008 至 2010
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-20550124/
• 关键词: 非線形; 界面; 非平衡; 自律運動; 自己組織化; 時空間発展; 振動; 表面張力; 非綿形; 時空間発展現象; 異方性; 自律系; 膜

Our purpose of this research is to clarify the mechanism of spatio-temporally developed phenomena at an immiscible interface under the anisotropic and nonequilibrium conditions. Actually, we investigated a change in the mode of self-motion was investigated for a camphor disk on water upon the addition of sulfate surfactants with alkyl chains of different lengths as a simple autonomous system. With an increase in the concentration of surfactant with a longer alkyl chain, two mode changes (continuous -> intermittent oscillatory -> no motion) were observed. With an increase in the concentration of surfactant with a shorter alkyl chain, four mode changes (continuous -> oscillatory -> continuous -> oscillatory -> no motion) were observed. These two types of mode changes are discussed in relation to the solubility of the surfactant and camphor in the water phase and the surface tension of the surfactant, camphor, and a mixture of surfactant and camphor as the driving force of motion. We also examined (1) the relati ship between mode-switching and synchronization, (2) mode-change depending on the external environment, and (3) rate balance between reaction and diffusion system.

本研究的目的是阐明各向异性和非平衡条件下非混相界面时空发展现象的机理。实际上，我们研究了不同长度烷基链的硫酸盐表面活性剂作为一个简单的自治体系在水中对樟脑圆盘的自运动模式的变化。随着烷基链较长的表面活性剂浓度的增加，可观察到连续->间断振荡->无运动两种模式变化。随着烷基链较短表面活性剂浓度的增加，可观察到连续型->振荡型->连续型->振荡型->无运动型4种模式变化。讨论了这两种类型的模式变化与表面活性剂和樟脑在水相中的溶解度以及表面活性剂、樟脑和表面活性剂和樟脑混合物的表面张力作为运动驱动力的关系。我们还研究了(1)模式切换和同步之间的关系，(2)模式变化取决于外部环境，以及(3)反应和扩散系统之间的速率平衡。

项目成果

Interactions between sex hormones and 1 1,2-di-o-myristoyl-sn-glycero-3-phospho choline monolayer : Characteristics of the liposome, surface area versus surface pressure of the monolayer, and microscopic observation

性激素和 1 1,2-二-o-肉豆蔻酰-sn-甘油-3-磷酸胆碱单层之间的相互作用：脂质体的特性、单层表面积与表面压力的关系以及显微镜观察

• 发表时间: 2011
• 期刊: Bulletin Chemical Society of Japan 84
• 作者: S.Nakata;A.Ikeguchi;T.Shiota;R.Komori;N.Kumazawa;M.Tsutsumi;M.Denda
• 通讯作者: M.Denda

Mathematical analysis of intercellular calcium propagation induced by ATP

ATP诱导细胞间钙传播的数学分析

• 发表时间: 2010
• 期刊: Skin Research Technology 16
• 作者: M.Tsutsumi;H.Kitahata;S.Nakata;Y.Sanno;M.Nagayama;M.Denda
• 通讯作者: M.Denda

Chemical sensing with dynamical nonlinear information

具有动态非线性信息的化学传感

• 发表时间: 2008
• 期刊: International Journal of Unconventional Computing (印刷中)
• 作者: S. Nakata;S. Izuhara;K. Masui;and M. R. Islam
• 通讯作者: and M. R. Islam

Mode-Switching of the Self-Motion of a Camphor Boat Depending on the Diffusion Distance of Camphor Molecules

• DOI: 10.1021/jp101838h
• 发表时间: 2010-06-03
• 期刊: JOURNAL OF PHYSICAL CHEMISTRY C
• 影响因子: 3.7
• 作者: Suematsu, Nobuhiko J.;Ikura, Yumihiko;Nakata, Satoshi
• 通讯作者: Nakata, Satoshi

Mathematical analysis of intercellular calcium propagation induced by adenosine triphosphate

三磷酸腺苷诱导细胞间钙增殖的数学分析

• 发表时间: 2010
• 期刊: Skin Research and Technology
• 影响因子: 2.2
• 作者: M.Tsutsumi;H.Kitahata;S.Nakata;Y Sanno;M.Nagayama;M.Denda
• 通讯作者: M.Denda