To provide further experimental proof for the described changes in molecular structure, . B) Generalized polarization parameter with Patman. Two independent measurements were performed for each sample yet they overlap. The data for binary and ternary mixtures show a change of curvature (inflection point), yet POPC lacks it, as it is in the L d phase at all measured temperatures. The spectra are shown in Fig. and the fitting parameters in Table . The absolute values of GP for DPPC, taken from Ref. 32, should not be directly compared to our data as they use a slightly different definition for GP. C) DPH anisotropy. Two samples were again measured, and they are almost identical. Data for DPPC was taken from Ref. 33. The spectra are shown in Fig. and the fitting parameters in Table . that the data for the binary and ternary mixtures display negative (like POPC) and positive (unlike DPPC nor POPC) curvatures with crossovers not far from T co extracted from our simulations and DSC (see Table for all fitting parameters).