Extracellular vesicles can provide a wealth of information ... If all particles had the same shape and composition, the output measurement would be directly comparable. But, van der Pol cautions ...

Eukaryotic and prokaryotic cells produce minute (40-1000 nm) membrane vesicles that are released into the local environment. These extracellular vesicles (EVs), including exosomes and microvesicles, ...