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Soft Matter. 2016 Apr 21;12(15):3631-5. doi: 10.1039/c6sm00384b.

Magnetic guidance of the magnetotactic bacterium Magnetospirillum gryphiswaldense.

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Experimentalphysik V, University of Bayreuth, 95440 Bayreuth, Germany.


Magnetospirillum gryphiswaldense is a magnetotactic bacterium with a permanent magnetic moment capable of swimming using two bipolarly located flagella. In their natural environment these bacteria swim along the field lines of the homogeneous geomagnetic field in a typical run and reversal pattern and thereby create non-differentiable trajectories with sharp edges. In the current work we nevertheless achieve stable guidance along curved lines of mechanical instability by using a heterogeneous magnetic field of a garnet film. The successful guidance of the bacteria depends on the right balance between motility and the magnetic moment of the magnetosome chain.

[Indexed for MEDLINE]

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