Fig.4From: Antenna-enhanced mid-infrared detection of extracellular vesicles derived from human cancer cell culturesCharacterization of the EVs isolated from HT-29 cells. a Representative AFM topography of purified EVs together with a selected line profile. (scale bar 300 nm). b, c Representative TEM images of purified EVs. Scale bars 80 nm (b), and 50 nm (a). d Nanoparticle tracking analysis of EVs isolated from HT-29, size distribution with a video frame. E Western blot analysis of EVs markers (Alix, CD63) and non-EVs marker (Cytochrome C) in HT29 cell-derived EVs and whole-cell lysatesBack to article page