Tiny Super Magnets Could Be the Future of Drug Delivery (IMAGE)
Caption
Electron micrographs of tiny superparamagnetic crystals of magnetite at different resolutions. The lowest resolution image (a) shows the octahedral crystals. At higher resolution, the 'craters' on the crystal surfaces are clearly visible. The highest resolution image (c) shows some of the defects in the crystal lattice, highlighted with the white arrows.
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Elsevier B.V
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