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Schematic of our device for sheathless viscoelastic particle focusing and separation. The hybrid capillary-inserted microfluidic device consists of (A) 1st stage micro-capillary tube for viscoelastic 3-D focusing, (B) bifurcation for initialization of all particles, and (C) 2nd stage microchannel for viscoelastic separation. The inset picture is the fabricated device.
