Communication science et technologie
Volume 16, Numéro 1, Pages 143-149
2018-01-01
Modeling And Optimization Of Planar Micro-coils Integrated In Microfluidic Devices
Authors : Hammar S. . Benchenane-mehor H. . Boukabache A. . Benbrahim A. . Aour B. .
Abstract
Magnetic actuation in miniaturized systems has emerged as strategic tool to perform microfluidic functions based on the manipulation of functionalized micro beads.An integrated planar coil is the most appropriate compenent used to manipulate paramagnetic micro bead in BioMEMS. Located under microfluidic channels, they can generate a sufficient magnetic field, according to their topologies and sizes, to trap or release surface functionalized beads. We have simulated the magnetic field induced by different micro-coils configurations by using the Finite Element Method (FEM) numerical analysis. The objective is to evaluate and optimize the magnetic field produced by each configuration and hence the magnetic forces exerted on microbeads circulating around micro-coils. Finally, the effect of different coil parameters such as the surface section of conductors, number of turns and inter-coil distance is discussed. The main advantage of the established model is to take into account all the technological parameters of the microfluidic device and to give the possibility to optimize geometrical parameters in order to integrate planar micro coils and to evaluate their action on the move of paramagnetic beads circuling in microfluidic channels.
Keywords
— Planar Microcoil, Finite Element Method (FEM) modeling, Magnetic field, paramagnetic beads, microfluidics
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