Microscale systems that can combine multiple functionalities, such as untethered motion, actuation and communication, could be of use in a variety of applications from robotics to drug delivery. However, these systems require both rigid and flexible components—including microelectronic circuits, engines, actuators, sensors, controllers and power supplies—to be integrated on a single platform. Here, we report a flexible microsystem that is capable of controlled locomotion and actuation, and is driven by wireless power transfer. The microsystem uses two tube-shaped catalytic micro-engines that are connected via a flat polymeric structure. A square coil is integrated into the platform, which enables wireless energy transfer via inductive coupling. As a result, the catalytic engines can be locally heated and the direction of motion controlled. Our platform can also integrate light-emitting diodes and a thermoresponsive micro-arm that can be used to perform grasp and release tasks.

可以结合多种功能（例如不受限制的运动，致动和通讯）的微型系统可以用于从机器人技术到药物输送的各种应用中。但是，这些系统需要将刚性和柔性组件（包括微电子电路，引擎，致动器，传感器，控制器和电源）集成到一个平台上。在这里，我们报告了一种灵活的微系统，该系统能够控制运动和致动，并由无线电力传输驱动。该微系统使用两个通过扁平聚合物结构连接的管状催化微引擎。方线圈集成到平台中，可通过感应耦合实现无线能量传输。结果，催化发动机可被局部加热并控制运动方向。