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Schematic illustrating the geometry of the microchannel. The constricted segment of the channel (width denoted by w) was sized at 8, 6, 4, and 2 μm. The white arrow represents the direction of fluid flow. (Upper Inset)A differential interference contrast image of normal (smooth) and infected RBCs. (Lower Left Inset) A normal RBC passing through a 2-μm constriction. (Lower Right Inset) Infected RBCs blocking a 6-μm constriction.
