Evaporation driven pumping for chromatography application

Nils Goedecke, Jan Eijkel, Andreas Manz

Research output: Contribution to journalArticleAcademicpeer-review

66 Citations (Scopus)

Abstract

A continuous transport process for liquids in micro-channels is reported. Flow was generated by evaporation at the channel end plus capillary forces. The micro-channels integrated into a two-glass-layer device were 110 μm wide, 28 μm deep and 4 or 10 cm long. A continuous liquid transport velocity of up to 2.25 mm s-1 was observed for aqueous solutions. The flow velocity is shown to increase when an air stream is guided over the evaporation zone.

Original languageEnglish
Pages (from-to)219-223
Number of pages5
JournalLab on a Chip - Miniaturisation for Chemistry and Biology
Volume2
Issue number4
DOIs
Publication statusPublished - 1 Nov 2002
Externally publishedYes

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