Figure 6.

Schematic sequence of cellular magnetic dipole formation. SPM magnetite particles (red) are nucleated in widely spaced organelles (light blue). (a) The green arrows indicate the biologically driven movements of the magnetosomes along the cytoskeletal filament (dashed line). (b) The SSD magnetite (blue dot) and its magnetic interaction (dashed-lined ellipse) act as a magnetic dock to stabilize SPM particle (purple dot). (c) The spacing and size of the magnetite are optimized, and the closely spaced magnetite particles separated only by the magnetosome membrane generate a robust cellular magnetic dipole (solid-lined ellipse).