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. 2014 Apr 16;9(4):e94789. doi: 10.1371/journal.pone.0094789

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This is an open-access article distributed under the terms of the Creative Commons Public Domain declaration, which stipulates that, once placed in the public domain, this work may be freely reproduced, distributed, transmitted, modified, built upon, or otherwise used by anyone for any lawful purpose.

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Left: AFM image showing various structures seen in aggregating lysozyme on mica substrate: (a) colloidal spheres, (b) primary fibers, (c) compound fibers, (d) amorphous aggregates, (e) a continuous layer of protein monomers bound to substrate. Right: After 1∶1000 dilution the continuous protein layer is no longer present. Colloidal spheres are still seen (a), as are numerous discrete particles (b) with a height of nm (n = 20), probably representing individual lysozyme monomers.

Inline graphic — Left: AFM image showing various structures seen in aggregating lysozyme on mica substrate: (a) colloidal spheres, (b) primary fibers, (c) compound fibers, (d) amorphous aggregates, (e) a continuous layer of protein monomers bound to substrate. Right: After 1∶1000 dilution the continuous protein layer is no longer present. Colloidal spheres are still seen (a), as are numerous discrete particles (b) with a height of nm (n = 20), probably representing individual lysozyme monomers.