Fig. 1From: Natural exosome-like nanoparticles derived from ancient medicinal insect Periplaneta americana L. as a novel diabetic wound healing acceleratorCharacterization of exosome-like nanoparticles from Periplaneta americana (PA-ELNs). (A) Schematic diagram of the extraction and purification of PA-ELNs. The particle distribution (B), 3D plots (C) and graphs (D) of PA-ELNs by NTA. (E) PA-ELNs morphology were visualized by TEM.Back to article page