Long term observation of Magnetospirillum gryphiswaldense in a microfluidic channel

Tijmen A. G. Hageman, Marc P. Pichel, Per A. Löthman, Jiung Cho, Miri Choi, Nuriye Korkmaz, Andreas Manz, Leon Abelmann

    Research output: Working paper


    We controlled and observed individual magnetotactic bacteria (Magnetospirillum gryphiswaldense) inside a 5 {\mu}m high microfluidic channel for over four hours. After a period of constant velocity, the duration of which varied between bacteria, all observed bacteria showed a gradual decrease in their velocity of about 25 nm/s$^2$. After coming to a full stop, different behaviour was observed, ranging from rotation around the centre of mass synchronous with the direction of the external magnetic field, to being completely immobile. Our results suggest that the influence of the high intensity illumination and the presence of the channel walls are important parameters to consider when performing observations of such long duration.
    Original languageEnglish
    Number of pages7
    Publication statusPublished - 21 Feb 2019

    Publication series



    • physics.bio-ph


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