TY - JOUR
T1 - Electrokinetic particle migration in heterogeneous electrolyte systems
AU - Devasenathipathy, Shankar
AU - Santiago, Juan G.
AU - Yamamoto, Takahiro
AU - Sato, Yohei
AU - Hishida, Koichi
PY - 2003/1/1
Y1 - 2003/1/1
N2 - This paper presents a preliminary evaluation of an electrokinetic process for the buffer transfer and stacking of charged colloidal particles in solution. The mechanism exploits the effects of particle stacking across streamlines in a flow with electrical conductivity gradients transverse to the flow direction. Particle velocity fields and particle concentration measurements in a T-shaped microchannel system are presented. Upon application of an electric field, negatively charged particles are extracted from a low conductivity stream and stacked into a high conductivity stream. A simplified numerical model of the process with a commercial software code captures the generation of a transverse electric field.
AB - This paper presents a preliminary evaluation of an electrokinetic process for the buffer transfer and stacking of charged colloidal particles in solution. The mechanism exploits the effects of particle stacking across streamlines in a flow with electrical conductivity gradients transverse to the flow direction. Particle velocity fields and particle concentration measurements in a T-shaped microchannel system are presented. Upon application of an electric field, negatively charged particles are extracted from a low conductivity stream and stacked into a high conductivity stream. A simplified numerical model of the process with a commercial software code captures the generation of a transverse electric field.
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U2 - 10.1115/IMECE2003-43966
DO - 10.1115/IMECE2003-43966
M3 - Conference article
AN - SCOPUS:1842584444
SN - 0888-8116
VL - 259
SP - 629
EP - 634
JO - American Society of Mechanical Engineers, Fluids Engineering Division (Publication) FED
JF - American Society of Mechanical Engineers, Fluids Engineering Division (Publication) FED
T2 - 2003 ASME International Mechanical Engineering Congress
Y2 - 15 November 2003 through 21 November 2003
ER -