| 초록 |
Magnetic manipulation of soft robotic systems has advantages of fast locomotive responses that can operate in diverse media with high penetrability. However, individual regulation of the magnetic soft robots has largely been limited in multi-body systems since temporal and spatial programming of magnetic field is required to control each robot. Herein, we demonstrate parallel magnetic regulation of multiple twisted microbots, composed of polyurethane-iron oxide nanocomposite, by a rotational magnetic source at the center. The magnetic robots involve trimodal rotation and resultant orbital revolution that orbital radius and velocity can be on-demand regulated as the speed of rotating magnet changes. The velocity of this limbness soft robot is 50,000 times faster (60 BL/s) with 1/7 weight (177 µg) than the most lightweight walking soft robot at below 0.03 T magnetic flux density. We will discuss details of hierarchical orbital maneuver in various environments. |
