MEVs are cell-derived lipid-bilayer nanoparticles that can carry bioactive molecules. They are secreted to the extracellular environment and naturally deliver their payload to surrounding cells thus modulating their physiology and genetics.

MEVs can be loaded and accommodate a large diversity of biologically active molecules, such as RNAs (mRNAs, siRNAs, dsRNAs...), DNAs (plasmids, oligos), peptides and proteins. Loaded MEVs protect and transport their payloads, and deliver them to the appropriate cellular compartments of the recipient cells, for proper expression and processing.