Self-propulsion of a metallic superoleophobic micro-boat

Albina Musin; Roman Grynyov; Mark Frenkel; Edward Bormashenko

doi:10.1016/j.jcis.2016.06.066

Self-propulsion of a metallic superoleophobic micro-boat

Albina Musin, Roman Grynyov, Mark Frenkel, Edward Bormashenko

Research output: Contribution to journal › Article › peer-review

24 Scopus citations

Abstract

The self-propulsion of a heavy, superoleophobic, metallic micro-boat carrying a droplet of various aqueous alcohol solutions as a fuel tank is reported. The micro-boat is driven by the solutocapillary Marangoni flow. The jump in the surface tension owing to the condensation of alcohols on the water surface was established experimentally. Maximal velocities of the self-propulsion were registered as high as 0.05 m/s. The maximal velocity of the center mass of the boat correlates with the maximal change in the surface tension, due to the condensation of alcohols. The mechanism of the self-locomotion is discussed. The phenomenological dynamic model describing the self-propulsion is reported.

Original language	English
Pages (from-to)	182-188
Number of pages	7
Journal	Journal of Colloid and Interface Science
Volume	479
DOIs	https://doi.org/10.1016/j.jcis.2016.06.066
State	Published - 1 Oct 2016

Keywords

Marangoni flow
Self-propulsion
Superoleophobic boat
Surface tension

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10.1016/j.jcis.2016.06.066

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title = "Self-propulsion of a metallic superoleophobic micro-boat",

abstract = "The self-propulsion of a heavy, superoleophobic, metallic micro-boat carrying a droplet of various aqueous alcohol solutions as a fuel tank is reported. The micro-boat is driven by the solutocapillary Marangoni flow. The jump in the surface tension owing to the condensation of alcohols on the water surface was established experimentally. Maximal velocities of the self-propulsion were registered as high as 0.05 m/s. The maximal velocity of the center mass of the boat correlates with the maximal change in the surface tension, due to the condensation of alcohols. The mechanism of the self-locomotion is discussed. The phenomenological dynamic model describing the self-propulsion is reported.",

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AU - Musin, Albina

AU - Grynyov, Roman

AU - Frenkel, Mark

AU - Bormashenko, Edward

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N2 - The self-propulsion of a heavy, superoleophobic, metallic micro-boat carrying a droplet of various aqueous alcohol solutions as a fuel tank is reported. The micro-boat is driven by the solutocapillary Marangoni flow. The jump in the surface tension owing to the condensation of alcohols on the water surface was established experimentally. Maximal velocities of the self-propulsion were registered as high as 0.05 m/s. The maximal velocity of the center mass of the boat correlates with the maximal change in the surface tension, due to the condensation of alcohols. The mechanism of the self-locomotion is discussed. The phenomenological dynamic model describing the self-propulsion is reported.

AB - The self-propulsion of a heavy, superoleophobic, metallic micro-boat carrying a droplet of various aqueous alcohol solutions as a fuel tank is reported. The micro-boat is driven by the solutocapillary Marangoni flow. The jump in the surface tension owing to the condensation of alcohols on the water surface was established experimentally. Maximal velocities of the self-propulsion were registered as high as 0.05 m/s. The maximal velocity of the center mass of the boat correlates with the maximal change in the surface tension, due to the condensation of alcohols. The mechanism of the self-locomotion is discussed. The phenomenological dynamic model describing the self-propulsion is reported.

KW - Marangoni flow

KW - Self-propulsion

KW - Superoleophobic boat

KW - Surface tension

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JO - Journal of Colloid and Interface Science

JF - Journal of Colloid and Interface Science

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Self-propulsion of a metallic superoleophobic micro-boat

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Keywords

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