2007/05/18 by Alfredo Alexander‐Katz, A. Alexander-Katz, Alexander-Katz, A.
Engineering · Physics and Astronomy · #Characterization and Applications of Magnetic Nanoparticles #Micro and Nano Robotics #Microfluidic and Bio-sensing Technologies #cond-mat.soft
paper · pdf · doi:10.48550/arxiv.0705.2669
5 pages, 4 figures
arxiv created 2007/05/18 · arxiv updated 2009/12/01
We study the motion of a microscopic swimmer composed of a semiflexible polymer anchored at the surface of a magnetic sphere using hydrodynamic simulations and scaling arguments. The swimmer is driven by a rotating magnetic field, and displays forward and backward motion depending on the value of the rotational frequency. In particular, the system exhibits forward thrust for frequencies below a critical frequency ω^*, while above ω^* the motion is reversed.