Fluorescence images of exosomes stained with Quant-iT™ PicoGreen® dsDNA reagent under confocal microscopy.

A, Bright green fluorescence of exosomes isolated using Invitrogen kit indicate the presence of dsDNA. B, Confocal image analysis of exosomes in fractions obtained by density gradient centrifugation. C, Confocal image analysis of exosomes with or without DNase treatment. Magnification 64 ×.