State Key Laboratory of Robotics, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang 110016, China.
Institutes for Robotics and Intelligent Manufacturing, Chinese Academy of Sciences, Shenyang 110016, China.
ACS Nano. 2022 Sep 27;16(9):14895-14906. doi: 10.1021/acsnano.2c05783. Epub 2022 Sep 6.
Superhydrophobic microrobots that can swim efficiently and rapidly on water under the action of external stimuli have attracted significant research attention for various applications. However, most studies on superhydrophobic microrobots have focused on single-stimulus driving modes, which limit the motion and functional applications of microrobots in complex aquatic environments. Therefore, multistimuli-responsive superhydrophobic microrobots that are capable of drifting rapidly on water through light, magnetic, and chemical control were developed in this study. The stability and environmental adaptability of the microrobots were systematically investigated. The microrobots achieved programmable trajectory motion on water, particularly complex motions such as circular, spiral, and helical movements under the coupled influence of chemical and magnetic fields. Importantly, the motion and control of multimicrorobots can be realized by combining control methods. Under the action of light and magnetic field, multimicrorobots could realize cooperative movement and completed the transportation of cargo. Additionally, broad multifunctional applications of the microrobots were explored in terms of oil spill recovery and solution mix. This study provides a method for the preparation and development of superhydrophobic microrobots with multistimuli-responsive characteristics.
超疏水微米机器人在外力刺激下能够在水面上高效、快速地游动，这引起了广泛的研究关注，因为它们在各种应用中具有很大的潜力。然而，大多数超疏水微米机器人的研究都集中在单一刺激驱动模式上，这限制了微米机器人在复杂水环境中的运动和功能应用。因此，本研究中开发了能够通过光、磁和化学控制在水面上快速漂移的多刺激响应超疏水微米机器人。系统地研究了微米机器人的稳定性和环境适应性。微米机器人在水面上实现了可编程轨迹运动，特别是在化学场和磁场的耦合影响下，能够实现圆形、螺旋形和螺旋形等复杂运动。重要的是，通过组合控制方法可以实现多机器人的运动和控制。在光和磁场的作用下，多机器人可以实现协同运动，并完成货物的运输。此外，还探索了微米机器人在溢油回收和溶液混合方面的广泛多功能应用。本研究为制备和开发具有多刺激响应特性的超疏水微米机器人提供了一种方法。
