Figure 1.

Plot of free energy of interaction between A and B (i.e., ω_AB) in the presence of (A) CHCl₃ and (B) CF₃CHBrCl (halothane) as a function of X_A/P for cholesterol-poor (2.5 mol % sterol) and cholesterol-rich (40 mol % sterol) bilayers made from DPPC and cholesterol. Values of X_A/P were determined, experimentally, as a function of the concentration of each anesthetic (not shown). Error bars that are not visible lie within the symbols themselves. Reprinted from ref (5). Copyright 2011 American Chemical Society.