Figure 2.
Calculated equilibrium concentration profiles for a binary mixture modeling cardiolipin and egg-PC. The force acting on each cardiolipin molecule is 4 × 10−16 newton, which is achieved experimentally at a field strength of ≈40 V/cm. The net force is less than the Coulombic force caused by electroosmotic drag. Three curves are shown illustrating the results for different relative critical points; the ambient temperature for all calculations is 295°K. A discontinuity in the concentration profile is predicted for temperatures below Tc caused by macroscopic phase separation. Critical demixing produces a substantial effect on the concentration profile even at temperatures well above Tc.