Simple modular systems for generation of droplets on demand

This report provides practical guidelines for the use of inexpensive electromagnetic valves characterized by large dead volumes (tens to hundreds of μL) for the generation of small (nL) droplets on demand in microfluidic chips. We analyze the role of the ratio of resistances and of the elastic capac...

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Bibliographic Details
Published inLab on a chip Vol. 13; no. 18; pp. 3689 - 3697
Main Authors Churski, Krzysztof, Nowacki, Michal, Korczyk, Piotr M, Garstecki, Piotr
Format Journal Article
LanguageEnglish
Published England 21.09.2013
Subjects
Chips
Connectors
Demand
Droplets
Guidelines
Liquids
Microfluidics
Valves
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Summary:This report provides practical guidelines for the use of inexpensive electromagnetic valves characterized by large dead volumes (tens to hundreds of μL) for the generation of small (nL) droplets on demand in microfluidic chips. We analyze the role of the ratio of resistances and of the elastic capacitance of the fluidic connectors between the reservoir of the liquid, the valve and the microfluidic chip in the reliable and precise formation of micro droplets on demand. We also demonstrate and examine the use of conventional electromagnetic squeeze valves in the generation of small droplets on demand with a similar set of design rules.
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ISSN:1473-0197
1473-0189
DOI:10.1039/c3lc50340b