Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Light-Controlled Motions of the Flocks
(A) The size (D) versus time for a typical flock under pulsed UVY irradiation, indicating the reversible expansion and contraction.
(B) The velocity (U) of the micromotor flock at different UV intensity (I, left panel) and fuel concentration (Cf, right panel).
(C) The TiO2 micromotor flock moves along a pre-designed path under the navigation of pulsed UV irradiation. Images are taken from Video S6. Scale bar: 20 μm.
