Fig. 1.
Bilayer structure as a function of DSPC mole fraction (xDSPC-d70) in the mixture. (A) Bilayer thickness, dB, and (B) area per lipid, AL, in mixed lipid bilayers at a constant relative temperature, T – Tm = 20 °C. Crosses are values determined from SANS experiments at the specified temperature, and the symbols are values calculated from the thermal expansivities listed in SI Appendix, Table S4. The solid lines represent the calculated thickness assuming a composition-weighted average of the pure component bilayer thickness (A) and the corresponding areas per lipid (B). Error bars represent 1 SD throughout the manuscript and in some cases are smaller than the symbols.