fig1

Figure 1. A schematic illustration of the structure of the integrated BWSR in this work. The microrobot is composed of an actuating layer, a sensing layer and an encapsulating layer. The PDMS/CNT composite is the basis for micro-robots to realize water surface sliding based on the photothermal effect. The propulsion force is generated by the Marangoni effect and buoyancy flow, which are created by the laser local heating actuating layer. The reasonably designed solid-liquid interface structure of the actuator provides conditions for robot integration. BWSR: Bionic water strider robot; PDMS: polydimethylsiloxane; CNT: carbon nanotube.