Steering of Magnetic Micro-Swimmers

作者: Yan-Hom Li , He-Ching Lin , Ching-Yao Chen

DOI: 10.1109/TMAG.2013.2241028

关键词:

摘要: We experimentally investigate the motion of micro-swimmers consisting several magnetic particles with different sizes. Swimmers are firstly formed by a static unidirectional field, and then manipulated an additional dynamical perpendicular field. It is known that such magnetic-particle swimmers (or chains) driven external field would oscillate orientation but lagging behind certain phase angle. In this work, we demonstrate if swimmer subjected to strong oscillating which results in instantaneous lag greater than π/2, can be steered perpendicularly its original direction. Detailed swimming mechanism trajectory presented. By innovative steering technology, micro-swimmer effectively without physical reconfiguration arrangement.

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