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(A) Cryogenic electron microscopy (Cryo-EM) images of the BBR-loaded liposomes fabricated by the ethanol-injection method (FJ21). The micrographs show the unilamellar vesicle (UV) structure of the liposomes. Scale bar = 100 nm. (B) The size distribution of the corresponding liposomes (FJ21) determined by the Zetasizer Nano ZSP system.
