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Five in One: Multi-Engine Highly Integrated Microrobot
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DOI：10.1002/smtd.202300390.png)
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Abstract
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A multi-engine highly integrated microrobot, which is a Janus hemispherical shell structure composed of Pt and & alpha;-Fe2O3, is successfully developed. The microrobot can be efficiently driven and flexibly regulated by five stimuli, including an optical field, an acoustic field, magnetic field, an electric field, and chemical fuel. In addition, no matter which way it is driven by, the direction can be effectively controlled through the magnetic field regulation. Furthermore, this microrobot can also utilize magnetic or acoustic fields to achieve excellent aggregation control and swarm movement. Finally, this study demonstrates that the microrobots' propulsion can be effectively synergistically enhanced through the simultaneous action of two driving mechanisms, which can greatly improve the performance of the motor in applications, such as pollutant degradation. This multi-engine, highly integrated microrobot not only can adapt to more complex environments and has a wider application range, better application prospects, but also provides important ideas for designing future advanced micro/nanorobots.
Keywords:
microrobots
motion control
multi-engine
nanotechnology
propulsion
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9.1
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