Analysis of particle motion in a micro-fluidic dielectrophoretic device
نویسندگان
چکیده
Interdigitated microelectrodes have found wide applications in manipulating and/or separating biological particles due to their simple structure and easy implementation. Particle behaviors in such interdigitated microelectrode devices are affected by a number of factors, including particle size, electrical potential, chamber geometry and dielectric properties. This paper presents systematical simulation study of particle behaviors in these devices by considering all these influencing factors. A case study is presented to separate different particles using both positive and negative DEP. Key-Words: Dielectrophoresis, interdigitated microelectrodes, DEP forces, hydrodynamic drag force, buoyancy force, particle motion
منابع مشابه
On the design and optimization of micro-fluidic dielectrophoretic devices: a dynamic simulation study.
Microfabricated interdigitated electrode array is a convenient form of electrode geometry for dielectrophoretic trapping of biological particles within micro-fluidic biochips. We have previously reported experimental results and finite element modeling of the holding forces for both positive and negative dielectrophoretic traps on microfabricated interdigitated electrodes within a microfluidic ...
متن کاملDesign and Simulation of a Fluidic Micro-Bio-Sensor Based on Resonator Array
In this paper, a fluidic biosensor with possibility to fabricate by Micro-Electro-Mechanical Systems (MEMS) technology is proposed for biomedical mass detection and lab-on-chip applications. This is designed by electromechanical coupling of harmonic micromechanical resonators with harmonic springers as a mechanical resonator array. It can disperse mechanical wave along the array by electrostati...
متن کاملDielectrophoretic separation of bioparticles in microdevices: a review.
In recent years, dielectrophoretic force has been used to manipulate colloids, inert particles, and biological microparticles, such as red blood cells, white blood cells, platelets, cancer cells, bacteria, yeast, microorganisms, proteins, DNA, etc. This specific electrokinetic technique has been used for trapping, sorting, focusing, filtration, patterning, assembly, and separating biological en...
متن کاملParticle imaging techniques for microfabricated fluidic systems
This paper presents the design and implementation of velocimetry techniques applicable to the analysis of microfluidic systems. The application of both micronresolution particle image velocimetry (micro-PIV) and particle tracking velocimetry (PTV) to the measurement of velocity fields within micromachined fluidic channels is presented. The particle tracking system uses epifluorescent microscopy...
متن کاملThe effects of suspending medium on dielectrophoretic systems for separating and sorting carbon nanotubes
The separation of two different types of multi-walled carbon nanotubes is studied in a dielectrophoresis-based microchannel system in seven different solvents as the suspending medium. A simple model was developed to predict the behavior of the multi-walled carbon nanotubes in the above mentioned system. Then, the equations of motion for the multi-walled carbon nanotubes in that system were in...
متن کامل