Capillary driven separation on patterned surfaces

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Abstract

Deterministic lateral displacement (DLD) is a powerful bimodal separation scheme [1] based on fluid flow through regular obstacle arrays that in its basic embodiment sends suspended particles in two different directions as a function of size. We show that without the need to seal devices and without the need for fluidic connections or pumps, particle separation can be achieved by the passive flow of a sample over a patterned surface. Risk of clogging is minimized by the movement of large particles above the obstacle array. Suitable application areas include blood fractionation and analysis of drinking water. 0

Original languageEnglish
Title of host publicationProceedings of Conference, MicroTAS 2009 - The 13th International Conference on Miniaturized Systems for Chemistry and Life Sciences
PublisherChemical and Biological Microsystems Society
Pages785-787
Number of pages3
ISBN (Print)9780979806421
Publication statusPublished - 2009 Jan 1
Event13th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2009 - Jeju, Korea, Republic of
Duration: 2009 Nov 12009 Nov 5

Conference

Conference13th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2009
Country/TerritoryKorea, Republic of
CityJeju
Period2009/11/012009/11/05

Keywords

  • Capillary wetting
  • Deterministic lateral displacement
  • Fractionation

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