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
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BK - Liquid mechanics
OECD FORD branch
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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
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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
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