fig5

Figure 5. Photoresponse to directional liquid transport on the surface of the microstructure. (A) Remote photothermal drives underwater bubbles in any direction. Copyright 2019, Wiley^[96]; (B) The droplet motion is driven by light-driven Marangoni flow propulsion. Copyright 2019, Wiley^[98]; (C) Light-induced droplet movement on POS surface. Copyright 2018, Wiley^[92].