Characterization of trap geometry in flow through dielectrophoretic-microfluidic device for particle trapping

Dielectrophoresis, an electrokinetic technique can be used for contactless isolation and separation of micro- and nano-sized particles suspended in a fluid. We present a lab-on-a-chip microfluidic device based on negative-dielectrophoretic system to isolate particles based on their physical and diel...

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Bibliographic Details
Main Authors: Ur Rahman, Mohammad Rizwen, Joon Kwak, Tae, Woehl, Jorg C, Chang, Woo-Jin
Format: Conference Proceeding
Language:English
Subjects:
array of micro-electrode
Dielectrophoresis
Electric fields
Electrodes
Finite element analysis
Force
Geometry
lab-on-a-chip
micro-trap
microfluidic device
Microfluidics
particle trap
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Summary:Dielectrophoresis, an electrokinetic technique can be used for contactless isolation and separation of micro- and nano-sized particles suspended in a fluid. We present a lab-on-a-chip microfluidic device based on negative-dielectrophoretic system to isolate particles based on their physical and dielectric properties. Effect of three different micro-trap geometries were studied experimentally for single particle trapping. A finite element model of the microfluidic device was developed and simulated to analyze direction and magnitude of dielectrophoretic force field for single-level particle trapping. These analysis of different shape μ-traps provide important insight on predicting trapping location, strength of the trapping zone and optimize geometry for high throughput particle trapping.
ISSN:2474-3755
DOI:10.1109/NEMS50311.2020.9265616