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A Scalabale Microfluidic Device for Switching of Microparticles Using Dielectrophoresis

[+] Author Affiliations
Waqas Waheed, Anas Alazzam, Eiyad Abu Nada, Ashraf N. Al Khateeb

Khalifa University of Science and Technology, Abu Dhabi, UAE

Bobby Mathew

United Arab Emirates University, Al Ain, UAE

Paper No. IMECE2018-87664, pp. V010T13A014; 6 pages
doi:10.1115/IMECE2018-87664
From:
  • ASME 2018 International Mechanical Engineering Congress and Exposition
  • Volume 10: Micro- and Nano-Systems Engineering and Packaging
  • Pittsburgh, Pennsylvania, USA, November 9–15, 2018
  • Conference Sponsors: ASME
  • ISBN: 978-0-7918-5215-6
  • Copyright © 2018 by ASME

abstract

In this paper, we have introduced a negative Dielectrophoresis based microfluidic system using a novel arrangement of microelectrodes to perform switching of micro objects. Both the experimental and numerical results are presented. Two sets of interdigitated electrodes, extending slightly into the microchannel from each sidewall, are embedded on the bottom of the microchannel. A finite element model in COMSOL Multiphysics 5.2a was developed to demonstrate switching of Red Blood Cells in the microchannel followed by multiple parametric studies to study the effect of several parameters on cell trajectories and optimize the design parameters. To verify numerical results, a PDMS-based microfluidic device on glass wafer was fabricated. The switching of Red Blood Cells in the microfluidic device with a single inlet and three outlets was also demonstrated.

Copyright © 2018 by ASME

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