Electric field driven addressing of ATPS droplets in microfluidic chips

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23640%2F17%3A43932442" target="_blank" >RIV/49777513:23640/17:43932442 - isvavai.cz</a>
Alternative codes found
RIV/60461373:22340/17:43913812
Result on the web
<a href="http://dx.doi.org/10.1007/s10404-017-1891-x" target="_blank" >http://dx.doi.org/10.1007/s10404-017-1891-x</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s10404-017-1891-x" target="_blank" >10.1007/s10404-017-1891-x</a>

Result language
angličtina
Original language name
Electric field driven addressing of ATPS droplets in microfluidic chips
Original language description
The possibility of controlled droplet motion (droplet addressing) mediated by DC electric field in aqueous two-phase systems (ATPS) is here reported for the first time. Three ATPS of polyethylene glycol (PEG)/salt type, namely PEG/phosphate, EG/sulphate, and PEG/carbonate, were selected for this study. We observed fast motion of salty droplets dispersed in PEG continuous phase induced by electric field of relative low strength. Hence, three fluidic systems with separated electrode chambers for the evaluation of electrophoretic mobilities and for addressing experiments were fabricated. Electrophoretic mobilities of salty droplets always exceeded the value of 1 × 10−7 m2V−1s−1, which is about by one magnitude higher value than those typically measured in water–oil droplet systems. The electrophoretic mobilities in systems with free surface are the same or even smaller than in closed microfluidic structures, which is accounted mainly to the fact that a significant part of salty droplets is exposed to air and does not contribute to droplet forcing. Series of addressing and merging experiments in a microfluidic chip shows that DC electric field can be used as a powerful tool for smart manipulation of droplets in microfluidic systems with PEG/salt ATPS.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
20401 - Chemical engineering (plants, products)

Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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