Electrokinetic particle migration in heterogeneous electrolyte systems

Shankar Devasenathipathy, Juan G. Santiago, Takahiro Yamamoto, Yohei Sato, Koichi Hishida

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

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.

Original languageEnglish
Title of host publicationAmerican Society of Mechanical Engineers, Fluids Engineering Division (Publication) FED
PublisherAmerican Society of Mechanical Engineers (ASME)
Pages629-634
Number of pages6
Volume259
DOIs
Publication statusPublished - 2003
Event2003 ASME International Mechanical Engineering Congress - Washington, DC., United States
Duration: 2003 Nov 152003 Nov 21

Other

Other2003 ASME International Mechanical Engineering Congress
CountryUnited States
CityWashington, DC.
Period03/11/1503/11/21

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Electrolytes
Electric fields
Charged particles
Microchannels
Numerical models
Electric Conductivity

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Devasenathipathy, S., Santiago, J. G., Yamamoto, T., Sato, Y., & Hishida, K. (2003). Electrokinetic particle migration in heterogeneous electrolyte systems. In American Society of Mechanical Engineers, Fluids Engineering Division (Publication) FED (Vol. 259, pp. 629-634). American Society of Mechanical Engineers (ASME). https://doi.org/10.1115/IMECE2003-43966

Electrokinetic particle migration in heterogeneous electrolyte systems. / Devasenathipathy, Shankar; Santiago, Juan G.; Yamamoto, Takahiro; Sato, Yohei; Hishida, Koichi.

American Society of Mechanical Engineers, Fluids Engineering Division (Publication) FED. Vol. 259 American Society of Mechanical Engineers (ASME), 2003. p. 629-634.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Devasenathipathy, S, Santiago, JG, Yamamoto, T, Sato, Y & Hishida, K 2003, Electrokinetic particle migration in heterogeneous electrolyte systems. in American Society of Mechanical Engineers, Fluids Engineering Division (Publication) FED. vol. 259, American Society of Mechanical Engineers (ASME), pp. 629-634, 2003 ASME International Mechanical Engineering Congress, Washington, DC., United States, 03/11/15. https://doi.org/10.1115/IMECE2003-43966
Devasenathipathy S, Santiago JG, Yamamoto T, Sato Y, Hishida K. Electrokinetic particle migration in heterogeneous electrolyte systems. In American Society of Mechanical Engineers, Fluids Engineering Division (Publication) FED. Vol. 259. American Society of Mechanical Engineers (ASME). 2003. p. 629-634 https://doi.org/10.1115/IMECE2003-43966
Devasenathipathy, Shankar ; Santiago, Juan G. ; Yamamoto, Takahiro ; Sato, Yohei ; Hishida, Koichi. / Electrokinetic particle migration in heterogeneous electrolyte systems. American Society of Mechanical Engineers, Fluids Engineering Division (Publication) FED. Vol. 259 American Society of Mechanical Engineers (ASME), 2003. pp. 629-634
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