期刊
NANO LETTERS
卷 15, 期 10, 页码 7064-7070出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.nanolett.5b03131
关键词
Nanomachines; micropropellers; nanopropellers; microswimmers; magnetic actuation; nanomotors
类别
资金
- Max Planck Society
- European Research Council [256915]
- European Research Council (ERC) [256915] Funding Source: European Research Council (ERC)
Studying propulsion mechanisms in low Reynolds number fluid has implications for many fields, ranging from the biology of motile microorganisms and the physics of active matter to micron-Axing in catalysis and micro- and nanorobotics. The propulsion of magnetic micropropellers can be characterized by a dimensionless speed, which solely depends on the propeller geometry for a given axis of rotation. However, this dependence has so far been only investigated for helical propeller shapes, which were assumed to be optimal. In order to explore a larger variety of shapes, we experimentally studied the propulsion properties of randomly shaped magnetic micropropellers. Surprisingly, we found that their dimensionless speeds are high on average, comparable to previously reported nanofabricated helical micropropellers. The highest dimensionless speed we observed is higher than that of any previously reported propeller moving in a low Reynolds number fluid, proving that physical random shape generation can be a viable optimization strategy.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据