Mode-Switching of the Self-Motion of a Camphor Boat Depending on the Diffusion Distance of Camphor Molecules
Mode-Switching of the Self-Motion of a Camphor Boat Depending on the Diffusion Distance of Camphor Molecules
复制标题
DOI：
10.1021/jp101838h
复制
发表时间：
2010-06-03
影响因子：
3.7
通讯作者：
Nakata, Satoshi
中科院分区：
文献类型：
--
作者：
Suematsu, Nobuhiko J.;Ikura, Yumihiko;Nakata, Satoshi
我们证明了模式切换的自运动与扩散的分子在固/液界面。樟脑船在水面上自发运动，其运动方式取决于船的设置。当一个樟脑圆盘连接到一个更大的塑料板的中心时，观察到间歇运动（在休息和快速运动之间交替）。当樟脑圆盘的位置由中心向边缘移动时，其间歇运动周期缩短，由间歇运动变为连续运动。这种自我运动和模式切换的功能进行了定性再现的数值计算，使用的数学模型，结合樟脑分子在固/液界面的分布。
We demonstrated mode-switching of self-motion coupled with diffusion of molecules at a solid/liquid interface. A camphor boat moved spontaneously on water and the mode of self-motion depended on the setup of the boat. When a camphor disk was connected to the center of a larger plastic plate, intermittent motion (alternating between rest and rapid motion) was observed. When the position of the camphor disk was changed from the center to one of its edges, the period of intermittent motion decreased, and intermittent motion changed to continuous motion. The features of this self-motion and mode-switching were qualitatively reproduced by a numerical calculation using a mathematical model that incorporates the distribution of camphor molecules at the solid/liquid interface.