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. 2015 Dec 1;5:17478. doi: 10.1038/srep17478

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Light microscope images of doxorubicin loaded magnetically functionalized nanotube clusters, which, in the absence of an external magnetic field spread evenly across a well plate (a). In contrast, doxorubicin loaded magnetic nanotubes can be guided away from one side of the well (upper image of (b)) towards the opposite side of the same well (lower image of (b). This could be repeated in different directions ((c) and SI Figure S14) depending on the placement of the external magnetic field (example images from 6 replicates, scale bars = 200 μm).