A microfluidics device for 3D switching of microparticles using dielectrophoresis

Here we describe the design, modeling, fabrication, and successful utilization of a microfluidic switching device that employs dielectrophoresis to effectively manipulate micro-scale entities in a microchannel. Two sets of opposing interdigitated transducer electrodes are micropatterned at the botto...

Full description

Saved in:
Bibliographic Details
Published in:Journal of electrostatics 2018-08, Vol.94, p.1-7
Main Authors: Waheed, Waqas, Alazzam, Anas, Abu-Nada, Eiyad, Khashan, Saud, Abutayeh, Mohammad
Format: Article
Language:English
Subjects:
Dielectrophoresis
Focusing
Microchannel
Microfluidics
Separation
Switching
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Here we describe the design, modeling, fabrication, and successful utilization of a microfluidic switching device that employs dielectrophoresis to effectively manipulate micro-scale entities in a microchannel. Two sets of opposing interdigitated transducer electrodes are micropatterned at the bottom of the device. The electrodes enter slightly from each side-wall into the channel. Finite Element Analysis and experimental results demonstrate that this design enables 3D switching of micro-objects at any location in the microchannel. Living cells are switched to one of the three downstream branches by varying the actuation voltages on the electrodes. •Non-contact negative dielectrophoresis switching microdevice.•3D switching of microparticles using dielectrophoresis.•Size-independent microfluidic switch using dielectrophoresis.•Microparticles focusing and switching using interdigitated electrodes.•A microfluidic device for the switching of particles and cells.
ISSN:0304-3886
1873-5738
DOI:10.1016/j.elstat.2018.04.011