Controlled Actuation of Self-Propelled Droplets

Loic Coudron; Clément Lemenu; Kevin Lemaine; Daniel McCluskey; Christabel Tan; Ian Munro; Arne Holdo; Mark Tracey; Ian Johnston

Controlled Actuation of Self-Propelled Droplets

Loic Coudron, Clément Lemenu, Kevin Lemaine, Daniel McCluskey, Christabel Tan, Ian Munro, Arne Holdo, Mark Tracey, Ian Johnston

Research output: Contribution to conference › Poster › peer-review

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Abstract

In this paper we present controlled self-propelled actuation of droplets employing Laplace pressure gradients between two non-parallel superhydrophobic plates. For small angles (cos β ≈ 1) a simplification of available energy-based models can accurately predict the droplets initial acceleration. By adjusting the plates’ spacing and angle (from 0.2° to 1.5°), the value of the droplets initial acceleration can be varied from 0.28 m s^-2 to 3.9 m s^-2 hence showing significant promise for precise controlled actuation. Such an actuation principle could find applications within droplet-based lab-on-a-chip systems where superhydrophobic surfaces could help address the challenges of transporting biomaterial laden droplets.

Original language	English
Publication status	Published - 9 Oct 2020
Event	The 24th International Conference on Miniaturized Systems for Chemistry and Life Sciences - Online Duration: 4 Oct 2020 → 9 Oct 2020 https://microtas2020.org/

Conference

Conference	The 24th International Conference on Miniaturized Systems for Chemistry and Life Sciences
Abbreviated title	MicroTAS 2020
Period	4/10/20 → 9/10/20
Internet address	https://microtas2020.org/

Keywords

Droplet
Laplace pressure
Self-propulsion
Superhydrophobic Materials

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© 2020, University of Hertfordshire
Final published version, 1.69 MBLicence: CC BY

Cite this

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title = "Controlled Actuation of Self-Propelled Droplets",

abstract = "In this paper we present controlled self-propelled actuation of droplets employing Laplace pressure gradients between two non-parallel superhydrophobic plates. For small angles (cos β ≈ 1) a simplification of available energy-based models can accurately predict the droplets initial acceleration. By adjusting the plates{\textquoteright} spacing and angle (from 0.2° to 1.5°), the value of the droplets initial acceleration can be varied from 0.28 m s^-2 to 3.9 m s^-2 hence showing significant promise for precise controlled actuation. Such an actuation principle could find applications within droplet-based lab-on-a-chip systems where superhydrophobic surfaces could help address the challenges of transporting biomaterial laden droplets.",

keywords = "Droplet, Laplace pressure, Self-propulsion, Superhydrophobic Materials",

author = "Loic Coudron and Cl{\'e}ment Lemenu and Kevin Lemaine and Daniel McCluskey and Christabel Tan and Ian Munro and Arne Holdo and Mark Tracey and Ian Johnston",

note = "{\textcopyright} 2020, University of Hertfordshire.; The 24th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2020 ; Conference date: 04-10-2020 Through 09-10-2020",

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day = "9",

language = "English",

url = "https://microtas2020.org/",

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TY - CONF

T1 - Controlled Actuation of Self-Propelled Droplets

AU - Coudron, Loic

AU - Lemenu, Clément

AU - Lemaine, Kevin

AU - McCluskey, Daniel

AU - Tan, Christabel

AU - Munro, Ian

AU - Holdo, Arne

AU - Tracey, Mark

AU - Johnston, Ian

PY - 2020/10/9

Y1 - 2020/10/9

N2 - In this paper we present controlled self-propelled actuation of droplets employing Laplace pressure gradients between two non-parallel superhydrophobic plates. For small angles (cos β ≈ 1) a simplification of available energy-based models can accurately predict the droplets initial acceleration. By adjusting the plates’ spacing and angle (from 0.2° to 1.5°), the value of the droplets initial acceleration can be varied from 0.28 m s^-2 to 3.9 m s^-2 hence showing significant promise for precise controlled actuation. Such an actuation principle could find applications within droplet-based lab-on-a-chip systems where superhydrophobic surfaces could help address the challenges of transporting biomaterial laden droplets.

AB - In this paper we present controlled self-propelled actuation of droplets employing Laplace pressure gradients between two non-parallel superhydrophobic plates. For small angles (cos β ≈ 1) a simplification of available energy-based models can accurately predict the droplets initial acceleration. By adjusting the plates’ spacing and angle (from 0.2° to 1.5°), the value of the droplets initial acceleration can be varied from 0.28 m s^-2 to 3.9 m s^-2 hence showing significant promise for precise controlled actuation. Such an actuation principle could find applications within droplet-based lab-on-a-chip systems where superhydrophobic surfaces could help address the challenges of transporting biomaterial laden droplets.

KW - Droplet

KW - Laplace pressure

KW - Self-propulsion

KW - Superhydrophobic Materials

M3 - Poster

T2 - The 24th International Conference on Miniaturized Systems for Chemistry and Life Sciences

Y2 - 4 October 2020 through 9 October 2020

ER -

Controlled Actuation of Self-Propelled Droplets

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