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 language | English |
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Pages (from-to) | 219-223 |
Number of pages | 5 |
Journal | Lab on a chip |
Volume | 2 |
Issue number | 4 |
DOIs | |
Publication status | Published - 1 Nov 2002 |
Externally published | Yes |