FIGURE 4.

Capturing exosomes by and elution of exosomes from MBs-Apt₆₃. (A) Schematic diagram for extracting exosomes from serum and cell supernatant with MBs-Apt₆₃; (B) DLS characterization after incubating exosomes with MBs-Apt₆₃; (C) DLS characterization after exposing the MBs-exosome complex to UV light; (D) Transmission electron microscopy image of exosomes bound to MBs-Apt₆₃ (left, 100000×, right, 25000×). Positions of exosomes and MBs-Apt₆₃ are marked in red; (E) Transmission electron microscopy image of exosomes eluted from MBs-Apt₆₃ by UV light.