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Magnetically propelled soft micromachines with multipatterned fabrications
Journal of Micromechanics and Microengineering ( IF 2.3 ) Pub Date : 2020-05-29 , DOI: 10.1088/1361-6439/ab8ebd
Zhao Zong , Xuhang Zhou , Lei Zhang , Qiulin Tan , Jijun Xiong , Wendong Zhang

The rotation of the helical micromachines can produce efficient motion efficiency at small-scale conditions and have the potential for multi-field applications. In this study, we propose self-scrolling schemes aiming at a flexible bilayer structure that includes the strained layer and magnetic layer. The magnetic layer is composed of magnetic nanocomposites and can respond to an external magnetic field. To cope with multistructural configurations, multipatterned manufacturing solutions of machines were investigated. Under the actuation of the rotating magnetic field, the swimming abilities of the helical machines are investigated in water and in a more viscous medium, exhibiting excellent movement abilities. For the purpose of transport capacities, the machines could be patterned with the containers, and their magnetic properties were studied to evaluate the effect of containers of different lengths on the movement performance; here, the direction of the magnetic axis and the stability of the rotational motion are investigated under different magnetization conditions. The result demonstrated that the larger radial deviation of the magnetic axis allows the machines to swim wobbly, and these instabilities can be reduced by radial magnetization.

中文翻译:

具有多图案制造的磁力驱动软微机械

螺旋微机械的旋转可以在小规模条件下产生高效的运动效率,并具有多领域应用的潜力。在这项研究中,我们提出了针对包括应变层和磁性层的柔性双层结构的自滚动方案。磁性层由磁性纳米复合材料组成,可以响应外部磁场。为了应对多结构配置,研究了机器的多模式制造解决方案。在旋转磁场的驱动下,研究了螺旋机在水中和更粘稠的介质中的游泳能力,表现出优异的运动能力。出于运输能力的目的,机器可以用集装箱设计,并研究了它们的磁性,以评估不同长度的容器对​​运动性能的影响;在这里,研究了不同磁化条件下的磁轴方向和旋转运动的稳定性。结果表明,磁轴的较大径向偏差允许机器摆动,并且可以通过径向磁化来减少这些不稳定性。
更新日期:2020-05-29
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