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Electrokinetic pumping and detection of low‐volume flows in nanochannels
Author(s) -
Mela Petra,
Tas Niels R.,
Berenschot Erwin J. W.,
van Nieuwkasteele Jan,
van den Berg Albert
Publication year - 2004
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.200406083
Subject(s) - electrokinetic phenomena , electrolyte , volume (thermodynamics) , volumetric flow rate , current (fluid) , materials science , flow (mathematics) , electro osmosis , analytical chemistry (journal) , range (aeronautics) , displacement (psychology) , channel (broadcasting) , nanotechnology , chromatography , chemistry , electrophoresis , mechanics , electrode , composite material , thermodynamics , electrical engineering , psychology , physics , engineering , psychotherapist
Electrokinetic pumping of low‐volume rates was performed on‐chip in channels of small cross sectional area and height in the sub‐μm range. The flow was detected with the current monitoring technique by monitoring the change in resistance of the fluid in the channel upon the electroosmosis‐driven displacement of an electrolyte solution by a second electrolyte solution. Flow rates in the order of 0.1 pL/s were successfully generated and detected. The channels were fabricated with the sacrificial layer technology.