Micromotors with step-motor characteristics by controlled magnetic interactions among assembled components.
Micromotors with step-motor characteristics by controlled magnetic interactions among assembled components.
复制标题
通过组装组件之间的受控磁相互作用具有踩踏特性的微型运动。
DOI:
10.1021/nn505798w
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发表时间:
2015-01-27
期刊:
影响因子:
17.1
通讯作者:
Fan, Donglei (Emma)
中科院分区:
文献类型:
--
作者:
Kim, Kwanoh;Guo, Jianhe;Xu, Xiaobin;Fan, Donglei (Emma)
关键词:
In this study, we investigated the control of the rotation dynamics of an innovative type of rotary micromotors with desired performances by tuning the magnetic interactions among the assembled micro/nanoscale components. The micromotors are made of metallic nanowires as rotors, patterned magnetic nanodisks as bearings and actuated by external electric fields. The magnetic forces for anchoring the rotors on the bearings play an essential role in the rotation dynamics of the micromotors. By varying the moment, orientation, and dimension of the magnetic components, distinct rotation behaviors can be observed, including repeatable wobbling and rolling in addition to rotation. We understood the rotation behaviors by analytical modeling, designed and realized micromotors with step-motor characteristics. The outcome of this research could inspire the development of high-performance nanomachines assembled from synthetic nanoentities, relevant to nanorobotics, microfluidics, and biomedical research.
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