Figure 2.

DLS measurements at 25°C of DOBMP (solid line) and POPC (dashed line) for hydrated dispersions at (A) pH 7.4 and (B) acidic pH 4.2 and for vesicles mechanically passed through extrusion membranes with 400 nm pores at (C) neutral pH 7.4 and (D) acidic pH 4.2. For these experiments all buffers contained 100 mM NaCl and 0.1 mM EDTA. Note that the scales on the abscissa are not the same.