Electrokinetic pumping and detection of low-volume flows in nanochannels.
Electrokinetic pumping of low-volume rates was performed on-chip in channels of small cross sectional area and height in the sub-microm 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.
Mela
Petra
P
BIOS, MESA+ Institute for Nanotechnology, University of Twente, Enschede, The Netherlands. p.mela@el.utwente.nl
Tas
Niels R
NR
Berenschot
Erwin J W
EJ
van Nieuwkasteele
Jan
J
van den Berg
Albert
A
D004560:Electricity; D004867:Equipment Design; D046210:Microfluidic Analytical Techniques / Q000295:instrumentation; D044085:Microfluidics / Q000295:instrumentation*; D036103:Nanotechnology / Q000295:instrumentation*; D012212:Rheology