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The TEM images for monomers, oligomers, and fibrils of Aβ1-42. (A) Example of a TEM image of Aβ1-42 monomer solution. (B) Example of a TEM image of soluble Aβ1-42 oligomers taken from the supernatant after incubation of Aβ1-42 monomer solution at 4 °C for 12 h. (C) Example of a TEM image of Aβ1-42 fibrils taken from the precipitate after incubating Aβ1-42 monomer solution at 37 °C for 7 days.
