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Representative cryo-SEM micrographs of freeze-fractured nanostructured droplets obtained with different magnifications. The droplets were created using a PFPE–PEG–PFPE triblock copolymer surfactant concentration of 20 mM and PFPE–PEG–Gold surfactant concentrations of (A, B) 30 μM and (C, D) 3 μM. For clarity, the insets show schematic representations of the droplet and the area of observation (not to scale).
