TY - GEN
T1 - Modeling microparticles' path in DEP-FFF microfludic devices
AU - Mathew, Bobby
AU - Alazzam, Anas
AU - Abutayeh, Mohammad
AU - Stiharu, Ion
N1 - Publisher Copyright:
© 2015 IEEE.
PY - 2015/12/11
Y1 - 2015/12/11
N2 - This article documents the development of a dynamic model for predicting the trajectory of microparticles in a DEP-FFF microfluidic device. The electrode configuration is such that the top and bottom surfaces support multiple finite sized electrodes in the range of few micrometers. The electric potential inside the microchannel takes the form of Laplace equation while the equations of motion are based on Newton's second law. The forces considered include that due to inertia, drag, gravity, buoyancy and dielectrophoresis. All governing equations are solved using finite difference method with a spatial step size of 0.5 μm and temporal step size of 10-4s. In addition, a parametric study is carried out in order to understand the individual influence of operating and geometric parameters on the path of microparticles. The parameters considered include microparticle radius, actuation voltage, volumetric flow rate and microchannel height. It is found that all parameters influence the transient trajectory of microparticles while only a few parameters influence the final levitation height of microparticles.
AB - This article documents the development of a dynamic model for predicting the trajectory of microparticles in a DEP-FFF microfluidic device. The electrode configuration is such that the top and bottom surfaces support multiple finite sized electrodes in the range of few micrometers. The electric potential inside the microchannel takes the form of Laplace equation while the equations of motion are based on Newton's second law. The forces considered include that due to inertia, drag, gravity, buoyancy and dielectrophoresis. All governing equations are solved using finite difference method with a spatial step size of 0.5 μm and temporal step size of 10-4s. In addition, a parametric study is carried out in order to understand the individual influence of operating and geometric parameters on the path of microparticles. The parameters considered include microparticle radius, actuation voltage, volumetric flow rate and microchannel height. It is found that all parameters influence the transient trajectory of microparticles while only a few parameters influence the final levitation height of microparticles.
KW - Microparticle
KW - dielectrophoresis
KW - dynamic model
KW - field flow fractionation
KW - microchannel
UR - http://www.scopus.com/inward/record.url?scp=84963804706&partnerID=8YFLogxK
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U2 - 10.1109/RSM.2015.7354997
DO - 10.1109/RSM.2015.7354997
M3 - Conference contribution
AN - SCOPUS:84963804706
T3 - RSM 2015 - 2015 IEEE Regional Symposium on Micro and Nano Electronics, Proceedings
BT - RSM 2015 - 2015 IEEE Regional Symposium on Micro and Nano Electronics, Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 10th IEEE Regional Symposium on Micro and Nano Electronics, RSM 2015
Y2 - 19 August 2015 through 21 August 2015
ER -