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Induced Charge Electro Osmotic Mixer: Obstacle Shape Optimization.

Mranal Jain, A. Yeung, K. Nandakumar
Published 2009 · Computer Science, Medicine

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Efficient mixing is difficult to achieve in miniaturized devices due to the nature of low Reynolds number flow. Mixing can be intentionally induced, however, if conducting or nonconducting obstacles are embedded within the microchannel. In the case of conducting obstacles, vortices can be generated in the vicinity of the obstacle due to induced charge electro-osmosis (ICEO) which enhances mixing of different streams: the obstacle shape affects the induced zeta potential on the conducting surface, which in turn influences the flow profile near the obstacle. This study deals with optimization of the geometric shape of a conducting obstacle for the purpose of micromixing. The obstacle boundary is parametrically represented by nonuniform rational B-spline curves. The optimal obstacle shape, which maximizes the mixing for given operating conditions, is found using genetic algorithms. Various case studies at different operating conditions demonstrated that the near right triangle shape provides optimal mixing in the ICEO flow dominant regime, whereas rectangular shape is the optimal shape in diffusion dominant regime. The tradeoff between mixing and transport is examined for symmetric and nonsymmetric obstacle shapes.
This paper references
10.1088/0960-1317/15/2/R01
Micromixers?a review
N. Nguyen (2005)
10.1007/978-3-642-59223-2
The NURBS Book
Les A. Piegl (1997)
10.1021/LA048203E
Tradeoff between mixing and transport for electroosmotic flow in heterogeneous microchannels with nonuniform surface potentials.
Fuzhi Tian (2005)
10.1016/J.COLSURFA.2005.06.050
Experimental observation of induced-charge electro-osmosis around a metal wire in a microchannel
J. Levitan (2005)
10.1139/V05-242
Rhodium(I) acetylacetonato complexes containing phosphinoalkynes as catalysts for the hydroboration of vinylarenes
C. Vogels (2006)
10.1021/AC0257389
Patterning flows using grooved surfaces.
A. Stroock (2002)
10.1021/AC035451R
Heterogeneous Surface Charge Enhanced Micromixing for Electrokinetic Flows
E. Biddiss (2004)
10.1017/S0022112006000371
Breaking symmetries in induced-charge electro-osmosis and electrophoresis
T. Squires (2005)
10.1351/pac200173101555
Miniaturization and chip technology. What can we expect?
A. Manz (2001)
10.1038/nature05058
The origins and the future of microfluidics
G. Whitesides (2006)
10.1038/nrd1985
Lab-on-a-chip: microfluidics in drug discovery
P. Dittrich (2006)
10.1109/JMEMS.2008.2010849
Efficient Micromixing Using Induced-Charge Electroosmosis
M. Jain (2009)
10.1007/S10404-005-0034-Y
A sequential injection microfluidic mixing strategy
J. T. Coleman (2005)
10.1103/PhysRevLett.92.066101
Induced-charge electrokinetic phenomena: theory and microfluidic applications.
M. Bazant (2004)
10.1002/AIC.690470602
Microfluidics: Basic issues, applications, and challenges
H. Stone (2001)
10.1017/S0022112004009309
Induced-charge electro-osmosis
T. Squires (2003)
10.1103/PHYSREVE.61.4019
Fluid flow induced by nonuniform ac electric fields in electrolytes on microelectrodes. II. A linear double-layer analysis
González (2000)
10.1007/S10404-007-0227-7
Mixing and flow regulating by induced-charge electrokinetic flow in a microchannel with a pair of conducting triangle hurdles
Zhemin Wu (2008)
10.1016/J.JCIS.2007.03.033
Electrokinetically-driven flow mixing in microchannels with wavy surface.
C. Chen (2007)
10.1146/ANNUREV.FLUID.36.050802.122124
Engineering Flows in Small Devices: Microfluidics Toward a Lab-on-a-Chip
H. Stone (2004)
10.1103/REVMODPHYS.77.977
Microfluidics: Fluid physics at the nanoliter scale
T. Squires (2005)
10.1007/S10404-007-0178-Z
Electrokinetic mixing in microfluidic systems
C. Chang (2007)
10.1016/J.ELECTACTA.2008.03.039
Micromixing using induced-charge electrokinetic flow
Zhemin Wu (2008)
10.1021/LA063224P
On the effect of induced electro-osmosis on a cylindrical particle next to a surface.
Hui Zhao (2007)



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A miniaturized microfluidic cytometer platform for point-of-care blood testing applications
J. Dou (2017)
10.1038/srep46510
Electrokinetic instability in microchannel ferrofluid/water co-flows
L. Song (2017)
Study on Groove Shape Optimization for Micromixers
Mranal Jain (2012)
10.1007/S10404-018-2153-2
An efficient micromixer actuated by induced-charge electroosmosis using asymmetrical floating electrodes
Kailiang Zhang (2018)
10.1063/1.3457121
Novel index for micromixing characterization and comparative analysis.
Mranal Jain (2010)
10.1016/J.CEP.2017.08.015
Effect of flap installation on improving the homogeneity of the mixture in an induced-charge electrokinetic micro-mixer
Z. Kazemi (2017)
10.1177/0954406216656886
Induced-charge electro-osmotic flow around cylinders with various orientations
Cetin Canpolat (2017)
10.3390/ijms12053263
Microfluidic Mixing: A Review
C. Lee (2011)
10.1016/J.IJHEATMASSTRANSFER.2018.06.065
Topology optimization of electrode patterns for electroosmotic micromixer
Y. Deng (2018)
10.1016/J.CEP.2018.07.002
Pulsatile flow micromixing coupled with ICEO for non-Newtonian fluids
Mehmet Melih Tatlιsoz (2018)
10.1088/1361-6439/abaf34
Induced-charge electrokinetics (ICEK) in microfluidics: A Review on Recent Advancements
Mohammad K. D. Manshadi (2020)
10.3390/mi1020036
Analysis of Electrokinetic Mixing Techniques Using Comparative Mixing Index
Mranal Jain (2010)
10.1016/J.CEP.2018.02.021
A review on the application, simulation, and experiment of the electrokinetic mixers
S. Rashidi (2018)
10.7939/R3Z03P
Numerial study of induced charge electroosmosis and its applications
Mranal Jain (2011)
10.3390/MI11060548
Implementation of a Single Emulsion Mask for Three-Dimensional (3D) Microstructure Fabrication of Micromixers Using the Grayscale Photolithography Technique.
Intan Sue Liana Abdul Hamid (2020)
10.1063/1.4949771
On utilizing alternating current-flow field effect transistor for flexibly manipulating particles in microfluidics and nanofluidics.
W. Liu (2016)
10.1016/J.COLSURFA.2010.04.038
Formation of vortices in a combined pressure-driven electro-osmotic flow through the insulated sharp tips under finite Debye length effects
Z. Sun (2010)
10.1002/elps.201700305
Flexible particle flow‐focusing in microchannel driven by droplet‐directed induced‐charge electroosmosis
Y. Ren (2018)
10.1039/c5sm01063b
Trapping and chaining self-assembly of colloidal polystyrene particles over a floating electrode by using combined induced-charge electroosmosis and attractive dipole-dipole interactions.
W. Liu (2015)
10.1063/1.3368991
Induced charge electro-osmotic concentration gradient generator.
Mranal Jain (2010)
10.3390/mi10070447
Multifrequency Induced-Charge Electroosmosis
Kai Du (2019)
10.1039/C6LC01346E
A novel micromixer based on the alternating current-flow field effect transistor.
Yupan Wu (2016)
10.3390/mi10020135
An Experimental Study of 3D Electrode-Facilitated Particle Traffic Flow-Focusing Driven by Induced-Charge Electroosmosis
Tianyi Jiang (2019)
Induced-Charge Electrokinetic Motion of a Heterogeneous Particle and Its Corresponding Applications
Yasaman Daghighi (2013)
10.1063/1.3279790
Mixing enhancement in microfluidic channel with a constriction under periodic electro-osmotic flow.
C. Y. Lim (2010)
PDMS Deformation Effects during Start-up Flow in Microchannels of Different Depths and Containing Various Obstacles
Chankyu Kang (2012)
10.1002/elps.201000330
Manipulating particles in microfluidics by floating electrodes
S. Yalcin (2010)
10.1016/J.COLSURFA.2017.04.020
High efficiency micromixing technique using periodic induced charge electroosmotic flow: A numerical study
M. Alipanah (2017)
10.3390/mi11060548
Implementation of a Single Emulsion Mask for Three-Dimensional (3D) Microstructure Fabrication of Micromixers Using the Grayscale Photolithography Technique
Intan Sue Liana Abdul Hamid (2020)
10.1007/S10404-013-1169-X
Numerical study on shape optimization of groove micromixers
Mranal Jain (2013)
10.1103/PHYSREVE.86.061506
Induced-charge electro-osmosis beyond weak fields.
Ory Schnitzer (2012)
10.1007/s10404-019-2306-y
Continuous microfluidic mixing and the highly controlled nanoparticle synthesis using direct current-induced thermal buoyancy convection
Kailiang Zhang (2020)
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