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Issue 28, 2017
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Unidirectional motion of a camphor disk on water forced by interactions between surface camphor concentration and dynamically changing boundaries

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Abstract

We study the motion of a camphor disk on the water surface in a system with flexible boundaries. The boundaries can be dynamically modified by non-uniform surface tension resulting from the nonhomogeneous surface concentration of the camphor molecules dissipated by the disk. We investigate the geometry of the boundaries that forces unidirectional motion of the disk. The studied system can be regarded as a signal diode if the presence or absence of a camphor disk at a specific point is interpreted as the binary TRUE and FALSE variables. The diode can be incorporated into more complex devices, like a ring that imposes unidirectional rotation of camphor disks.

Graphical abstract: Unidirectional motion of a camphor disk on water forced by interactions between surface camphor concentration and dynamically changing boundaries

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Publication details

The article was received on 16 May 2017, accepted on 26 Jun 2017 and first published on 26 Jun 2017


Article type: Paper
DOI: 10.1039/C7CP03252H
Citation: Phys. Chem. Chem. Phys., 2017,19, 18767-18772
  • Open access: Creative Commons BY license
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    Unidirectional motion of a camphor disk on water forced by interactions between surface camphor concentration and dynamically changing boundaries

    J. Gorecki, H. Kitahata, N. J. Suematsu, Y. Koyano, P. Skrobanska, M. Gryciuk, M. Malecki, T. Tanabe, H. Yamamoto and S. Nakata, Phys. Chem. Chem. Phys., 2017, 19, 18767
    DOI: 10.1039/C7CP03252H

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