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Micropump based on electroosmosis of the second kind
Author(s) -
Mishchuk Nataliya A.,
Heldal Trond,
Volden Tormod,
Auerswald Janko,
Knapp Helmut
Publication year - 2009
Publication title -
electrophoresis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.666
H-Index - 158
eISSN - 1522-2683
pISSN - 0173-0835
DOI - 10.1002/elps.200900271
Subject(s) - micropump , microfluidics , electro osmosis , voltage , mechanics , flow (mathematics) , materials science , volumetric flow rate , nanotechnology , electrical engineering , chemistry , engineering , physics , chromatography , electrophoresis
A microfluidic pump based on electroosmosis of the second kind was designed and fabricated. Experimental results using DC and AC voltages showed a close to second‐order relationship between flow and voltage, in good agreement with theory. The experimental flow rates were considerably lower than the predicted maximum for the micropumps, which can be attributed to the hydrodynamic resistance of the channel network. This also indicates that higher flow velocities are obtainable for modified pump designs.