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. Author manuscript; available in PMC: 2024 Jun 11.
Published in final edited form as: Phys Rev E. 2020 Feb 1;101(2-1):022416. doi: 10.1103/PhysRevE.101.022416

Fig. 8. Micropipette experiments.

Fig. 8

(a) A 16-cell colony held on a micropipette, viewed from posterior side. Flagella are clearly visible and their frequency can be followed as a function of time and light. The blue LED is located in the same plane as the micropipette, a few millimeters below the bottom of the image. [(b)–(d)] Velocity fields measured by micro-PIV, averaged over 1 s at three different times indicated below each panel. The Gonium is seen from the back (flagella away from us). Colormap is the same across the three images, from 0 to 30 µm/s. Light intensity s0 ≈ 1 lux.