Figure 6.

Freeze-fracture electron microscopy of the 1/POPC/PEG-ceramide fliposome formulation at pH 7.4 (A) and 5 minutes after adjusting the pH to 5.5 with diluted acetic acid (B, C). Examples of division, buds, and stripes are shown with white, black, and yellow arrows respectively. The bars represent 100 nm.
