Multimodal Magnetic Collective Behaviors of Musculoskeletal System-Mimetic Polymer Nanocomposite

초록

Collective dynamics of multi-robot has recently been explored for cooperative tasks. Instead of sophisticated individual path-programing of swarm robots, we present rapid and adaptable collective motility of magnetically jointed polymer nanocomposites. We designed musculoskeletal system-mimetic soft robots with ternary nanocomposites consisted with carbon nanotube yarn, silicon rubber[JJW2] , and iron particles[JJW3] . Modularity by magnetic soft joints of multiple robots result in facile assembly [JJW4] in trimodal organization. The biomimetic robots achieve swift above water swimming up to 180 BL s?1 (body lengths per second) at < 13 mT of magnetic flux density in quadrupolar electromagnetic field, capable of concurrent rotational and rectilinear translational motility. Moreover, the agile magnetic organization can induce fluid vortex to transport 850 of floating microparticles as well as semi-submerged cargos. Collective behaviors of such soft robots can provide effectual operating principles for various applications including drug delivery, robotic swarming, and microplastics cleaning.