Calligraphy/Painting Based on a Bioinspired Light-Driven Micromotor with Concentration-Dependent Motion Direction Reversal and Dynamic Swarming Behavior

Inspired by the collective behavior of natural living systems, the collective behavior of micromotors has become the research highlight. Although great progress has been made, it is still challenging to control the collective behavior of micromotors. In this paper, we demonstrate a novel near-infrared (NIR) light-powered micromotor consisting of a polystyrene microsphere and a polydopamine core-shell structure (PS@PDA) with...