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Experimental results for bacterial growth and ordering from an evenly distributed low-density seeding of cells. (A–C) Three snapshots of E. coli monolayer growth and ordering in a quasi-2D open microfluidic cavity taken at 60, 90, and 138 min from the beginning of the experiment. (D–F) Velocity and density profiles along the channel corresponding to the snapshots to the left. (G–I) Time traces of mean density, velocity gradient, and order parameter.
