Marangoni effect inspired robotic self-propulsion over a water surface using a flow-imbibition-powered microfluidic pump

Abstract Certain aquatic insects rapidly traverse water by secreting surfactants that exploit the Marangoni effect, inspiring the development of many self-propulsion systems. In this research, to demonstrate a new way of delivering liquid fuel to a water surface for Marangoni propulsion, a microflui...

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Autores principales:	Bokeon Kwak, Soyoung Choi, Jiyeon Maeng, Joonbum Bae
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/f9844fe588b2422e93381341c5ae1cbb
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id	oai:doaj.org-article:f9844fe588b2422e93381341c5ae1cbb
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spelling	oai:doaj.org-article:f9844fe588b2422e93381341c5ae1cbb2021-12-02T17:51:21ZMarangoni effect inspired robotic self-propulsion over a water surface using a flow-imbibition-powered microfluidic pump10.1038/s41598-021-96553-82045-2322https://doaj.org/article/f9844fe588b2422e93381341c5ae1cbb2021-09-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-96553-8https://doaj.org/toc/2045-2322Abstract Certain aquatic insects rapidly traverse water by secreting surfactants that exploit the Marangoni effect, inspiring the development of many self-propulsion systems. In this research, to demonstrate a new way of delivering liquid fuel to a water surface for Marangoni propulsion, a microfluidic pump driven by the flow-imbibition by a porous medium was integrated to create a novel self-propelling robot. After triggered by a small magnet, the liquid fuel stored in a microchannel is autonomously transported to an outlet in a mechanically tunable manner. We also comprehensively analyzed the effects of various design parameters on the robot’s locomotory behavior. It was shown that the traveled distance, energy density of fuel, operation time, and motion directionality were tunable by adjusting porous media, nozzle diameter, keel-extrusion, and the distance between the nozzle and water surface. The utilization of a microfluidic device in bioinspired robot is expected to bring out new possibilities in future development of self-propulsion system.Bokeon KwakSoyoung ChoiJiyeon MaengJoonbum BaeNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-13 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Bokeon Kwak Soyoung Choi Jiyeon Maeng Joonbum Bae Marangoni effect inspired robotic self-propulsion over a water surface using a flow-imbibition-powered microfluidic pump
description	Abstract Certain aquatic insects rapidly traverse water by secreting surfactants that exploit the Marangoni effect, inspiring the development of many self-propulsion systems. In this research, to demonstrate a new way of delivering liquid fuel to a water surface for Marangoni propulsion, a microfluidic pump driven by the flow-imbibition by a porous medium was integrated to create a novel self-propelling robot. After triggered by a small magnet, the liquid fuel stored in a microchannel is autonomously transported to an outlet in a mechanically tunable manner. We also comprehensively analyzed the effects of various design parameters on the robot’s locomotory behavior. It was shown that the traveled distance, energy density of fuel, operation time, and motion directionality were tunable by adjusting porous media, nozzle diameter, keel-extrusion, and the distance between the nozzle and water surface. The utilization of a microfluidic device in bioinspired robot is expected to bring out new possibilities in future development of self-propulsion system.
format	article
author	Bokeon Kwak Soyoung Choi Jiyeon Maeng Joonbum Bae
author_facet	Bokeon Kwak Soyoung Choi Jiyeon Maeng Joonbum Bae
author_sort	Bokeon Kwak
title	Marangoni effect inspired robotic self-propulsion over a water surface using a flow-imbibition-powered microfluidic pump
title_short	Marangoni effect inspired robotic self-propulsion over a water surface using a flow-imbibition-powered microfluidic pump
title_full	Marangoni effect inspired robotic self-propulsion over a water surface using a flow-imbibition-powered microfluidic pump
title_fullStr	Marangoni effect inspired robotic self-propulsion over a water surface using a flow-imbibition-powered microfluidic pump
title_full_unstemmed	Marangoni effect inspired robotic self-propulsion over a water surface using a flow-imbibition-powered microfluidic pump
title_sort	marangoni effect inspired robotic self-propulsion over a water surface using a flow-imbibition-powered microfluidic pump
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/f9844fe588b2422e93381341c5ae1cbb
work_keys_str_mv	AT bokeonkwak marangonieffectinspiredroboticselfpropulsionoverawatersurfaceusingaflowimbibitionpoweredmicrofluidicpump AT soyoungchoi marangonieffectinspiredroboticselfpropulsionoverawatersurfaceusingaflowimbibitionpoweredmicrofluidicpump AT jiyeonmaeng marangonieffectinspiredroboticselfpropulsionoverawatersurfaceusingaflowimbibitionpoweredmicrofluidicpump AT joonbumbae marangonieffectinspiredroboticselfpropulsionoverawatersurfaceusingaflowimbibitionpoweredmicrofluidicpump
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Marangoni effect inspired robotic self-propulsion over a water surface using a flow-imbibition-powered microfluidic pump

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