Dynamics of suspended colloidal particles near a wall: Implications for interfacial particle velocimetry

M. Yoda; Y. Kazoe

doi:10.1063/1.3662005

Dynamics of suspended colloidal particles near a wall: Implications for interfacial particle velocimetry

M. Yoda, Y. Kazoe

Research output: Contribution to journal › Article › peer-review

25 Citations (Scopus)

Abstract

Interfacial transport due to surface forces is significant in many microfluidic devices with their relatively large surface areas and small volumes. Recently, velocimetry methods where evanescent waves illuminate fluorescent particles less than 1 μm in radius have been used to obtain fluid velocities within 500 nm or less of the wall. This review considers some of the phenomena affecting the dynamics of suspended colloidal particles near a wall. The measurement of interfacial flow velocities using such particles as tracers, illustrated by studies of Poiseuille and electrokinetically driven flows, is then discussed.

Original language	English
Article number	111301
Journal	Physics of Fluids
Volume	23
Issue number	11
DOIs	https://doi.org/10.1063/1.3662005
Publication status	Published - 2011 Nov 29
Externally published	Yes

ASJC Scopus subject areas

Computational Mechanics
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering
Fluid Flow and Transfer Processes

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10.1063/1.3662005

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title = "Dynamics of suspended colloidal particles near a wall: Implications for interfacial particle velocimetry",

abstract = "Interfacial transport due to surface forces is significant in many microfluidic devices with their relatively large surface areas and small volumes. Recently, velocimetry methods where evanescent waves illuminate fluorescent particles less than 1 μm in radius have been used to obtain fluid velocities within 500 nm or less of the wall. This review considers some of the phenomena affecting the dynamics of suspended colloidal particles near a wall. The measurement of interfacial flow velocities using such particles as tracers, illustrated by studies of Poiseuille and electrokinetically driven flows, is then discussed.",

author = "M. Yoda and Y. Kazoe",

note = "Funding Information: M.Y. thanks the Microsystems Technology Office at the Defense Advanced Research Projects Agency, the Air Force Office of Scientific Research, and the Fluid Dynamics and Particulate and Multiphase Transport Processes Programs at the National Science Foundation for their support of this work over the last decade. Y.K.{\textquoteright}s stay at Georgia Tech was supported by Research Fellowship 20-3770 from the Japan Society for the Promotion of Science for Young Scientists. We also thank Q. Guo and S. V. Behrens at the Georgia Institute of Technology for their help with the light scattering measurements, J. P. Alarie and J. M. Ramsey at the University of North Carolina for providing the microchannels, and E. Yariv at the Technion and A. T. Conlisk at Ohio State University for helpful discussions.",

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doi = "10.1063/1.3662005",

language = "English",

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T1 - Dynamics of suspended colloidal particles near a wall

T2 - Implications for interfacial particle velocimetry

AU - Yoda, M.

AU - Kazoe, Y.

N1 - Funding Information: M.Y. thanks the Microsystems Technology Office at the Defense Advanced Research Projects Agency, the Air Force Office of Scientific Research, and the Fluid Dynamics and Particulate and Multiphase Transport Processes Programs at the National Science Foundation for their support of this work over the last decade. Y.K.’s stay at Georgia Tech was supported by Research Fellowship 20-3770 from the Japan Society for the Promotion of Science for Young Scientists. We also thank Q. Guo and S. V. Behrens at the Georgia Institute of Technology for their help with the light scattering measurements, J. P. Alarie and J. M. Ramsey at the University of North Carolina for providing the microchannels, and E. Yariv at the Technion and A. T. Conlisk at Ohio State University for helpful discussions.

PY - 2011/11/29

Y1 - 2011/11/29

N2 - Interfacial transport due to surface forces is significant in many microfluidic devices with their relatively large surface areas and small volumes. Recently, velocimetry methods where evanescent waves illuminate fluorescent particles less than 1 μm in radius have been used to obtain fluid velocities within 500 nm or less of the wall. This review considers some of the phenomena affecting the dynamics of suspended colloidal particles near a wall. The measurement of interfacial flow velocities using such particles as tracers, illustrated by studies of Poiseuille and electrokinetically driven flows, is then discussed.

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Dynamics of suspended colloidal particles near a wall: Implications for interfacial particle velocimetry

Abstract

ASJC Scopus subject areas

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