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Assembly of recombinant B. megaterium CotW and CotW-GFP into macroscopic structures. (a) Phase-contrast micrograph of CotW sheet formation at the air-water interphase. (b) Removal of a CotW-GFP film from the air-water interphase with tweezers. (c) Overlay of fluorescence and phase-contrast micrographs of assembled CotW-GFP. Bars, 25 μm (a) and 15 μm (c).
