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. 2008 Mar 13;94(12):4725–4736. doi: 10.1529/biophysj.107.121731

FIGURE 4.

FIGURE 4

(A) Example of osmotic filtration from a 1:1:1 SOPC/SM/CHOL vesicle measured at 15°C after transfer from 205 mOsm solution to 236 mOsm. Superposed is the single parameter fit of the transport equation defined by the filtration rate kW, which yields the coefficient PW for water permeability. (B) Water permeabilities PW ± SD measured at 15°C, 30°C, and 35°C for DOPC, SOPC, 1:1 SM/CHOL, 1:1 SOPC/CHOL, 1:1:1 DOPC/SM/CHOL, and 1:1:1 SOPC/SM/CHOL; 10–20 vesicles were tested for each system and temperature. Also plotted for comparison are water permeabilities for 1:1 DOPC/CHOL and 1:1:2 SOPC/SM/CHOL vesicles measured at 15°C.