Fig. 1 |. Timeline of EV imaging milestones and broad overview of microscopy techniques to resolve EVs at different scales.
a, Timeline of imaging milestones in EV research. EM, electron microscopy. Refs. 2,10,17,19,22,34,38,47,63,68,128,129,131–136. b, Schematic of the resolution range of different microscopic approaches to resolve EVs at increasing resolution.