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Trimer-like Microrobots with Multimodal Locomotion and Reconfigurable Capabilities by S. Yu; T. Li; F. Ji; S. Zhao; K. Liu; Z. Zhang; W. Zhang; Y. Mei is a Engineering article available to read on EtoBox.

What is Trimer-like Microrobots with Multimodal Locomotion and Reconfigurable Capabilities about?

Despite the growing interest in the motion mechanisms and application potential of individual active colloids/particles in micro/nanorobotics, their aggregation for higher-ordered mesostructures remains a significant challenge due to the complexity of their motion control and dynamics. Here, a magnetic trimer-like microrobot composed of three magnetic Janus colloids with different diameters exhibited multimodal locomotion, frequency-dependent reconfigurability, and contactless manipulation in a 3D environment. Various locomotion modes excited by adjusting the magnetic field rely on different driving principles. At a low Reynolds number, trimer-like microrobots can locomote in a 3D space based on their asymmetric shape distribution and can move on a surface by breaking spatial symmetry. A strategy to reconfigure trimer-like microrobots from b-config to a-config rapidly was implemented by alternating the frequency and strength of the magnetic field. Additionally, the trimer-like microrobots follow a unique chiral rotating mode with self-adjusting capabilities under uniform rotating magnetic field propulsion in horizontal plane. Through the integration of multimodal locomotion, these

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Author

S. Yu; T. Li; F. Ji; S. Zhao; K. Liu; Z. Zhang; W. Zhang; Y. Mei

Publisher

Elsevier BV

Published

2022

Language

EN

Field

Engineering (Physical Sciences)