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Cryo-TEM and confocal microscopy images of the OA system (5 mM) in bicine buffer (0.2 M) at different pH values. (A–C) Cryo-TEM images at pH 7.6 (large aggregates—droplets) (A), pH 8.4 (vesicles) (B), and pH 9.7 (micelles) (C). (D) Confocal image (note the different scale) showing a giant vesicle of OA (pH 8.5) with a background of smaller ones, in the formation process.
