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Portrait of Jonas Tegenfeldt. Photo: Kennet Ruona

Jonas Tegenfeldt

Professor, Coordinator Nanobiology & Neuronanoscience

Portrait of Jonas Tegenfeldt. Photo: Kennet Ruona

Capillary driven separation on patterned surfaces


  • Jason P. Beech
  • Jonas O. Tegenfeldt

Summary, in English

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


  • Solid State Physics

Publishing year







Proceedings of Conference, MicroTAS 2009 - The 13th International Conference on Miniaturized Systems for Chemistry and Life Sciences

Document type

Conference paper


Chemical and Biological Microsystems Society


  • Capillary wetting
  • Deterministic lateral displacement
  • Fractionation

Conference name

13th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2009

Conference date

2009-11-01 - 2009-11-05

Conference place

Jeju, Korea, Republic of




  • ISBN: 9780979806421