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Biogenesis of surface‐edited EVs. (a) Schematic illustration of the secretion of surface‐edited EVs. (b) Confocal microscopy images of CD63‐GFP (green) and PHA (red) in MDA‐MB‐231 CD‐63 GFP cells at 24 h post‐incubation. (c) Schematic illustration of the binding affinity test of PHA‐EV with the CD44 receptor by BLI. (d) Binding kinetics of bare EVs and PHA‐EVs on CD44‐derivatized biosensors. (e) Cellular uptake behaviours of bare EVs and PHA‐EVs in various CD44‐positive cells
