Zheng Yuhong, Wang Bochu, Cai Yuepeng, Zhou Xiaosong, Dong Renfeng
School of Chemistry, South China Normal University, Guangzhou, 510006, P. R. China.
Department of chemistry and biochemistry, University of California San Diego, La Jolla, California, 92093, USA.
Small Methods. 2023 Oct;7(10):e2300390. doi: 10.1002/smtd.202300390. Epub 2023 Jul 14.
A multi-engine highly integrated microrobot, which is a Janus hemispherical shell structure composed of Pt and α-Fe O , 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.
成功开发出一种多引擎高度集成的微型机器人，它是由铂和α-氧化铁组成的双面半球形壳结构。该微型机器人可通过包括光场、声场、磁场、电场和化学燃料在内的五种刺激进行高效驱动和灵活调节。此外，无论以何种方式驱动，其方向都可通过磁场调节得到有效控制。此外，这种微型机器人还可利用磁场或声场实现出色的聚集控制和群体运动。最后，该研究表明，通过两种驱动机制的同时作用，微型机器人的推进力可得到有效协同增强，这可大大提高其在诸如污染物降解等应用中的性能。这种多引擎、高度集成的微型机器人不仅能适应更复杂的环境，应用范围更广、前景更好，还为设计未来先进的微纳机器人提供了重要思路。
