Chemosensitive running droplet.
Chemosensitive running droplet.
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DOI：
10.1103/physreve.72.041603
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发表时间：
2005-05
期刊：
影响因子：
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通讯作者：
Y. Sumino;H. Kitahata;K. Yoshikawa;M. Nagayama;S. Nomura;N. Magome;Y. Mori
中科院分区：
文献类型：
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作者：
Y. Sumino;H. Kitahata;K. Yoshikawa;M. Nagayama;S. Nomura;N. Magome;Y. Mori
本文报道了在水相中，反应性油滴在玻璃基片上运动的自发运动的化学控制。实验结果表明，油滴在酸处理过的玻璃表面上的自运动受到限制。油滴运动的瞬态行为也被观察到与高速摄像机。根据油滴运动的实验观测，建立了考虑玻璃表面电荷影响的数学模型。该数学模型的数值模拟再现了油滴运动在一定化学区域内的限制及其瞬态行为的基本特征。我们的研究结果可能会揭示反应性传播和生物的趋化性的物理方面。
Chemical control of the spontaneous motion of a reactive oil droplet moving on a glass substrate under an aqueous phase is reported. Experimental results show that the self-motion of an oil droplet is confined on an acid-treated glass surface. The transient behavior of oil-droplet motion is also observed with a high-speed video camera. A mathematical model that incorporates the effect of the glass surface charge is built based on the experimental observation of oil-droplet motion. A numerical simulation of this mathematical model reproduced the essential features concerning confinement of oil droplet motion within a certain chemical territory and also its transient behavior. Our results may shed light on physical aspects of reactive spreading and a chemotaxis in living things.