Patent ID: 6012902
Filing Date: 2000-01-11
Classification: B01L,F04B,H02N

Abstract:
A microfluidic device, comprising:a body structure comprising a substrate layer having at least one microscale channel fabricated into a surface thereof; andan integrated micropump in fluid communication with the at least one microscale channel, the micropump comprising:a first fluid containing microscale channel portion having first and second ends;a second fluid containing microscale channel portion having first and second ends, the second channel portion having a first effective surface charge associated with walls of the second channel portion, the first end of the second channel portion in fluid communication with the first end of the first channel portion at a first channel junction; anda means for applying a voltage gradient between the first and second ends of the second fluid containing channel portion to electroosmotically move fluid through the second channel portion while applying substantially no voltage gradient between the first and second ends of the first fluid containing channel portion.