FIGURE 4.
Phase diagram of pure di18:0(9,10Br)PC and its mixture with alamethicin at the P/Ls 1:20 and 1:30. Three phases were detected: lamellar L, tetragonal T (space group I41), and rhombohedral R (space group R ). There were relatively narrow coexistence regions (1%–2% RH) between phases for pure lipid. The T phase was absent, and the coexistence region between L and R was 4%–5% RH for the mixtures. (Note that the accuracy of commercial RH sensors is 1%–2% (32).)