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Microfluidic Magnetic Separation Device



For my senior project, I was part of a team that developed a microfluidic magnetic separation device.The device was fabricated in PDMS, and used a H filter geometry to separate magnetic beads from non magnetic beads. Two inlet streams were run through one channel, creating a boundary layer which the magnetic beads were pulled across in order to separate them from non-magnetic beads. 


My Contribution:


I analyzed the design in order to optimize the dimensions of the fluidic channel and the amount of magnetic force needed for separation. I used COMSOL to investigate the fluid flow optimize inlet and outlet pressures. I wrote a simulation in MATLAB to simulate the distance traveled by magnetic beads as they moved down the length of the channel. 


•COMSOL simulations


•Soft Lithography

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