Title :
A high flow rate electro-osmotic pump with small channels in parallel
Author :
Chujo, Haruki ; Matsumoto, Kiyoshi ; Shimoyama, Isao
Author_Institution :
Dept. of Mechano-Informatics, Univ. of Tokyo, Japan
Abstract :
This paper describes the design of a high flow rate electro-osmotic pump. An Electro-Osmotic Flow (EOF) is generated since the charges in the electric double layer are moved under the influence of an external electric field. As a channel becomes narrow, the flow speed increases. The flow rate, however, decreases owing to the reduction of the cross-sectional area. Meanwhile, if two or more channels are placed in parallel, the flow speed is the same as before. Therefore, it is possible to build the pump of high flow rate with putting small channels in parallel.
Keywords :
electrophoresis; microfluidics; micropumps; osmosis; electric double layer; external electric field; high flow rate electro-osmotic pump; small channels in parallel; Biomembranes; Etching; Fabrication; Fluid flow control; Hydrodynamics; Information science; Oxidation; Pumps; Thermal force; Valves;
Conference_Titel :
Micro Electro Mechanical Systems, 2003. MEMS-03 Kyoto. IEEE The Sixteenth Annual International Conference on
Print_ISBN :
0-7803-7744-3
DOI :
10.1109/MEMSYS.2003.1189758
