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Microfluidics via Controlled Imbibition

Published online by Cambridge University Press:  11 March 2013

Ville Jokinen and
Sami Franssila
Ville Jokinen
Affiliation:
Aalto University, School of Chemical Technology, Department of Materials Science and Engineering, Tietotie 3, 02150 Espoo, Finland.
Sami Franssila
Affiliation:
Aalto University, School of Chemical Technology, Department of Materials Science and Engineering, Tietotie 3, 02150 Espoo, Finland.
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Abstract

Strategies for controlled imbibition utilizing both topographical cues as well as patterned surface chemistries are presented. Triangle-like microstructures were used for directional wetting of liquids into a limited sector of the surface. Chemical patterns on top of a nanopillar geometry allowed the patterning of both water and oil droplets. Applications of controlled imbibition in dried droplet mass spectrometry as well as liquid-liquid extraction are also presented.

Keywords

nanostructurefluidicsbiomimetic (assembly)

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References

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