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Top: transmission electron micrographs of HA–PAHy nanoparticles at a calibrated magnification of (A) 36000× and (B) 30000×. Reproduced with permission,117 Copyright 2008, American Chemical Society. Bottom: scanning electron micrographs of HA HGP10 (C, Reproduced with permission,120 Copyright 2006, American Chemical Society) and HGP0.9 (D, Reproduced with permission,114 Copyright 2009, American Chemical Society).
