Magnetically Powered Annelid‐Worm‐Like Microswimmers |
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Authors: | Yiman Liu Dongqing Ge Jiawei Cong Hong‐Guang Piao Xiufeng Huang Yunli Xu Guangduo Lu Liqing Pan Min Liu |
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Affiliation: | 1. Hubei Engineering Research Center of Weak Magnetic‐field Detection & College of Science, China Three Gorges University, Yichang, Hubei, China;2. School of Mechanical Engineering, Jiangsu University, Zhenjiang, Jiangsu, China |
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Abstract: | A bioinspired magnetically powered microswimmer is designed and experimentally demonstrated by mimicking the morphology of annelid worms. The structural parameters of the microswimmer, such as the surface wrinkling, can be controlled by applying prestrain on substrate for the precise fabrication and consistent performance of the microswimmers. The resulting annelid‐worm‐like microswimmers display efficient propulsion under an oscillating magnetic field, reaching a peak speed of ≈100 µm s?1. The speed and directionality of the microswimmer can be readily controlled by changing the parameters of the field inputs. Additionally, it is demonstrated that the microswimmers are able to transport microparticles toward a predefined destination, although the translation velocity is inevitably reduced due to the additional hydrodynamic resistance of the microparticles. These annelid‐worm‐like microswimmers have excellent mobility, good maneuverability, and strong transport capacity, and they hold considerable promise for diverse biomedical, chemical sensing, and environmental applications. |
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Keywords: | annelid worms cargo delivery microswimmers remote actuation |
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