Fig. 4From: Effective Visualization and Easy Tracking of Extracellular Vesicles in Glioma CellsInvestigating the structural integrity of EVs after labeling. Transmission electron micrographs of both labeled and unlabeled EVs. CD63-gold label EVs showed black dot on the surface (a). TSG101 labeled EVs showed whole EV staining on EM (b). Electron micrograph of EVs treated with secondary antibody (c). Calnexin control labeling indicated specificity of labeling procedure (d). EVs were indicated using yellow arrowBack to article page