Control over Janus micromotors by the strength of a magnetic field
Control over Janus micromotors by the strength of a magnetic field
Baraban, L.; Makarov, D.; Schmidt, O.; Cuniberti, G.; Leiderer, P.; Erbe, A.
For transportation of molecules or biological cells using artificial motors, the control over their motion, i.e. direction and speed of transfer, is important. Here, we demonstrate that modification of the velocity and orientation of a magnetic Janus particle can be efficiently controlled by tuning the strength of an applied magnetic field. Interestingly, by keeping the same orientation of the magnetic field but changing its magnitude not only velocity of capped particles can be altered but even their direction of motion can be reversed.
Keywords: microparticles; colloidal model systems; micro engines
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Nanoscale 5(2013), 1332-1336
DOI: 10.1039/C2NR32662K
Cited 76 times in Scopus
Permalink: https://www.hzdr.de/publications/Publ-17932