Figure 4.

Adaptive Reconfigurations of the Flocks

(A) Reversible splitting and merging of the TiO₂ micromotor flock after overexpansion by regrouping the scattered individuals. Images are taken from Video S7. The intensities of UV_X and UV_Y are 0.25 and 1 W cm⁻², respectively.

(B) Cordon, splitting, and re-joining of the TiO₂ micromotor flock when it bypasses a prism obstacle.

(C) Elongation of the TiO₂ micromotor flock when it fits through a narrow channel.

Images in B and C are taken from Video S8. The arrows represent the velocity vectors of the flocking micromotors. All scale bars are 20 μm.