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Electrokinetic properties of surfaces
Detection of viral pathogens in environmental waters
Electrokinetics in Tissue-Engineered Cartilage Scaffolds
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Electrokinetic Pumps
Funding: DOE
Electrokinetic micropumps (EK pumps) use electroosmosis in charged porous media to generate pressure and flow in microdevices. EK pumps are realized by applying voltage across a porous bed, typically a monolithic porous polymer or a bed of packed silica particles.

Electrokinetic pumps have no moving parts, excellent frequency response, and the ability to precisely meter flow at high-pressure and low flow rates. These attributes make them ideally suited for control of flow in miniaturized high-performance liquid chromatography systems as well as miniaturized catalytic reactors.

Our work on electrokinetic pumps has focused on use of high-dielectric-constant fluids to demonstrate the highest reported efficiencies (over 5%) and pressures (1.5 atmospheres per volt) to date.

Publications and Presentations on Electrokinetic Pumps
PDF version of Reichmuth, Kirby: Effects of ammonioalkyl sulfonate internal salts on electrokinetic micropump performance and reversed-phase HPLC separations

Reichmuth DS, Kirby BJ
"Effects of Ammonioalkyl sulfonate internal salts on electrokinetic micropump performance and Reversed-Phase HPLC separations," Journal of Chromatography A, 1013:93-101 (2003). doi pdf text

PDF version of Reichmuth, Chirica, Kirby: Increasing the performance of high-pressure, high-efficiency electrokinetic micropumps using zwitterionic solute additives

Reichmuth DS, Chirica GS, Kirby BJ
"Increasing the Performance of High-Pressure, High-Efficiency Electrokinetic Micropumps Using Zwitterionic Solute Additives," Sensors and Actuators B-Chemical, 92:37-43 (2003). doi pdf text

PDF versino of Fintschenko, Kirby, Hasselbrink, Singh, Shepodd: Monolithic materials: miniature and microchip technologies

Fintschenko Y, Kirby BJ, Hasselbrink, Jr. EF, Singh AK, Shepodd TJ
"Monolithic Materials: Miniature and Microchip Technologies," in Monolithic Materials: Preparation, Properties, and Applications Elsevier, Amsterdam (2003). pdf

Electrokinetic pumps fabricated in glass microchips.

 
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