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Electric Field Driven Addressing of Oil-in-Water Droplets in the Presence of Gradients of Ionic and Nonionic Surfactants

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22340%2F16%3A43902104" target="_blank" >RIV/60461373:22340/16:43902104 - isvavai.cz</a>

  • Result on the web

    <a href="http://ieeexplore.ieee.org/document/7465757/?reload=true" target="_blank" >http://ieeexplore.ieee.org/document/7465757/?reload=true</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1109/TIA.2016.2563391" target="_blank" >10.1109/TIA.2016.2563391</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Electric Field Driven Addressing of Oil-in-Water Droplets in the Presence of Gradients of Ionic and Nonionic Surfactants

  • Original language description

    We deal with controlled transport (addressing) of dielectric kerosene droplets dispersed on water surface by dc electric field in the presence of surfactants. Experimental planar microfluidic platform with a central chamber and two electrode compartments enables formation of concentration gradients of cationic, anionic, or nonionic surfactants. We show that a kerosene droplet always moves away from the surfactant reservoir due to the Marangoni phenomenon. The release of ionic surfactants can be well controlled by imposed electric field. Once surfactant molecules reach the surface of the water phase, the Marangoni phenomenon pulls the kerosene droplet in the direction from the surfactant reservoir. Thus, the observed mechanism does not rely on the classical electrophoretic migration of charged macroscopic objects-droplets. As the dependence of droplet motion on the absolute value of electric field strength is linear, apparent droplet mobilities are evaluated. Finally, we discuss the use of the observed phenomenon for droplet addressing in fluidic systems.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

  • CEP classification

    BK - Liquid mechanics

  • OECD FORD branch

Result continuities

  • Project

    <a href="/en/project/GA14-01781S" target="_blank" >GA14-01781S: Investigation on fluid mechanics in smart microsystems driven by electric fields</a><br>

  • Continuities

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Others

  • Publication year

    2016

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS

  • ISSN

    0093-9994

  • e-ISSN

  • Volume of the periodical

    52

  • Issue of the periodical within the volume

    5

  • Country of publishing house

    US - UNITED STATES

  • Number of pages

    8

  • Pages from-to

    4337-4344

  • UT code for WoS article

    000384659900071

  • EID of the result in the Scopus database