Simultaneous and continuous particle separation and counting via localized DC-dielectrophoresis in a microfluidic chip

The first report that particle counting and separation can be achieved simultaneously. Separation and counting of polystyrene particles of two and three different sizes with 1 μm resolution were demonstrated experimentally.

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T1501-2-4 Continuous Particle Separation Using Magnetically Driven Microtool in Microfluidic Chip

The proceedings of the JSME annual meeting ◽

10.1299/jsmemecjo.2009.8.0_227 ◽

2009 ◽

Vol 2009.8 (0) ◽

pp. 227-228

Author(s):

Hisataka MARUYAMA ◽

Shinya SAKUMA ◽

Benoit CHAPURLAT ◽

Yoko YAMANISHI ◽

Fumihito ARAI

Keyword(s):

Microfluidic Chip ◽

Particle Separation ◽

Continuous Particle

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Continuous particle separation in spiral microchannels using dean flows and differential migration

Lab on a Chip ◽

10.1039/b807107a ◽

2008 ◽

Vol 8 (11) ◽

pp. 1906 ◽

Cited By ~ 379

Author(s):

Ali Asgar S. Bhagat ◽

Sathyakumar S. Kuntaegowdanahalli ◽

Ian Papautsky

Keyword(s):

Particle Separation ◽

Differential Migration ◽

Continuous Particle

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Continuous particle separation with localized AC-dielectrophoresis using embedded electrodes and an insulating hurdle

Electrochimica Acta ◽

10.1016/j.electacta.2008.09.062 ◽

2009 ◽

Vol 54 (6) ◽

pp. 1715-1720 ◽

Cited By ~ 93

Author(s):

Yuejun Kang ◽

Barbaros Cetin ◽

Zhemin Wu ◽

Dongqing Li

Keyword(s):

Particle Separation ◽

Continuous Particle

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Continuous Dielectrophoretic Separation of Multiple Particles in a Microfluidic Chip

Volume 13: Nano-Manufacturing Technology; and Micro and Nano Systems, Parts A and B ◽

10.1115/imece2008-66727 ◽

2008 ◽

Author(s):

Christian Davidson ◽

Junjie Zhu ◽

Xiangchun Xuan

Keyword(s):

Particle Size ◽

Electric Field ◽

Flow Separation ◽

Microfluidic Chip ◽

Continuous Flow ◽

Uniform Electric Field ◽

Dielectrophoretic Force ◽

Size Dependent ◽

Multiple Particles ◽

Dc Dielectrophoresis

We successfully demonstrate that DC dielectrophoresis can be utilized to separate particles of three dissimilar sizes simultaneously in a microfluidic chip. This continuous-flow separation is attributed to the particle size dependent dielectrophoretic force that is generated by the non-uniform electric field around a single insulating hurdle on the channel sidewall.

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Numerical Modeling of Spiral Micro-Mixers

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.74.327 ◽

2009 ◽

Vol 74 ◽

pp. 327-330

Author(s):

Yong Jun Wee ◽

Ai Qun Liu ◽

Ren Jian Gan

Keyword(s):

Numerical Modeling ◽

Particle Separation ◽

General Purpose ◽

Mixing Process ◽

Robust Solution ◽

Mixing Performance ◽

Multiple Phase ◽

Mixer Design ◽

Continuous Particle ◽

Micro Mixer

Optimization of micro-mixing components is vital for efficient micro-electromechanical systems (MEMS) and lab-on-a-chips. In this area, it is ideal to have a universal micro-mixer design for general purpose multiple-phase fluidic mixing. Numerical methods to compute and analyze the mixing process in the spiral micro-mixer design are presented. This spiral design has also been found to be efficient for intra-droplet mixing as well as continuous particle separation by utilizing its attributing Dean flows. Analysis on the mixing performance of this design serves to present Archimedes’ spiral as a robust solution and exemplifies the effects of minute yet effective alterations to the design.

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