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Domain sizes in ferritin-templated inorganic nanoparticles. The most-crystalline materials are Fe3O4 and Mn3O4, while Fhyd shows lower crystallinity. Native horse spleen ferritin (HsFn) is fit with a calculated PDF from ferrihydrite and shows a domain size similar to much smaller ferrihydrite particles. The error bar for Mn3O4 is off the scale for this image; see text for discussion.
