FIGURE 1.
Force-area isoterms of binary mixtures of PCPE and cholesterol. (A) The surface pressure versus mean molecular area isotherms for PCPE at 22°C and 37°C. (B) The surface pressure versus mean molecular area isotherms for mixtures containing 0 (long-dashed line), 25 (dash-dot-dash line), 50 (short-dashed line), 75 (dotted line), or 100 (solid line) mol % cholesterol in PCPE at 37°C. The monolayers were compressed on water at a speed not exceeding 10 Å2/molecule/min.