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Improved Pumping Media for E-O pumps


Stanford Reference:

03-150


Abstract


Electroosmotic (EO) pumps (also known as electrokinetic pumps) generate fluid flow and pressure in a compact system with no moving parts. They can be combined with microchannel heat exchangers to provide cooling for microelectronics. Researchers in Dr. Juan Santiago's laboratory at Stanford University have developed a patented pumping medium for EO pumps made of porous silicon. Compared to current methods, the technology provides higher flow rate per power and improves the performance and efficiency of EO pumps by allowing a lower voltage requirement at a given flow rate. This increased efficiency may provide a low-power, high flow rate, high pressure, small form factor, vibration-free pump for a variety of applications including drug delivery, portable chemical analysis, and cooling of microelectronic devices.

Related Technologies
The Stanford Microfluidics Laboratory has developed several additional technologies related to EO pumps:
--Bio Application of E-O Pump (Stanford Docket S02-303)
--An Orientation Independent EO Pump (Stanford Docket S05-116)
--Controlling Electrolytically Generated Gas Bubbles in In-Plane Electro-osmotic pumps (Stanford Docket S07-342)


Applications


  • Drug delivery
  • Portable chemical analysis systems
  • IC chip cooling

Advantages


  • High flow rate per power ratio
  • Higher thermodynamic efficiency
  • Higher flow rate per applied voltage
  • Smaller form factor
  • Manufacturing compatibility - the pumping medium is compatible with standard semiconductor manufacturing processes

Publications



Related Web Links



Innovators & Portfolio



Patent Status



Date Released

 7/30/2013
 

Licensing Contact


Linda Chao, Senior Associate
(650) 725-9408 (Direct)
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Related Keywords


EO pump   research tool: equipment   MEMS: microfluidics   IC cooling   research tool   MEMS: MEMS    03-150   
 

   

  

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S03-150 Improved Pumping Media for E-O pumps