TY - GEN
T1 - Analysis of dielectrophoresis based 3D-focusing in microfluidic devices with planar electrodes
AU - Hilal-Alnaqbi, Ali
AU - Alazzam, Anas
AU - Dagher, Sawsan
AU - Mathew, Bobby
N1 - Funding Information:
*Research supported by funding from United Arab Emirates University, Al Ain, UAE (Grant # 31R071) A Hilal-AlNaqbi is with the Mechanical Engineering Department, United Arab Emirates University, Al Ain, UAE (e-mail: [email protected]).
Publisher Copyright:
© 2017 IEEE.
PY - 2017/9/13
Y1 - 2017/9/13
N2 - This article models a dielectrophoresis based approach for achieving 3D focusing, of micro-scale objects, in microfluidic devices. The microfluidic device employs four planar electrodes; two electrodes each on the top and bottom surface of the microchannel and each slightly protrude into the microchannel. Each electrode establishes electric field with the neighboring electrode on the same and opposite surfaces. The dielectrophoretic force pushes the micro-scale objects both the directions transverse to the flow direction to achieve the desired 3D focusing. The developed model accounts for various forces such as that associated with inertia, sedimentation, drag, and dielectrophoresis. Finite difference method is used for calculating the electric field and dielectrophoretic force as well as the displacements of micro-scale objects in the microchannel. Several geometric and operating parameters influence the trajectory of micro-scale objects. There exists a threshold voltage beyond which there is no increase in levitation height.
AB - This article models a dielectrophoresis based approach for achieving 3D focusing, of micro-scale objects, in microfluidic devices. The microfluidic device employs four planar electrodes; two electrodes each on the top and bottom surface of the microchannel and each slightly protrude into the microchannel. Each electrode establishes electric field with the neighboring electrode on the same and opposite surfaces. The dielectrophoretic force pushes the micro-scale objects both the directions transverse to the flow direction to achieve the desired 3D focusing. The developed model accounts for various forces such as that associated with inertia, sedimentation, drag, and dielectrophoresis. Finite difference method is used for calculating the electric field and dielectrophoretic force as well as the displacements of micro-scale objects in the microchannel. Several geometric and operating parameters influence the trajectory of micro-scale objects. There exists a threshold voltage beyond which there is no increase in levitation height.
UR - http://www.scopus.com/inward/record.url?scp=85032178149&partnerID=8YFLogxK
U2 - 10.1109/EMBC.2017.8037633
DO - 10.1109/EMBC.2017.8037633
M3 - Conference contribution
C2 - 29060674
AN - SCOPUS:85032178149
T3 - Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS
SP - 3588
EP - 3591
BT - 2017 39th Annual International Conference of the IEEE Engineering in Medicine and Biology Society
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 39th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2017
Y2 - 11 July 2017 through 15 July 2017
ER -