Figure 4.

Model-based data showing how % absorption (a) and total absorbed amount (b) are modified by the experimental duration for selected values of N_derm. The dimensionless time number, N_time, is the ratio of experimental duration to the lag time for diffusion. For a given compound, increasing experimental duration increases the applied load amount that defines a specific N_derm, in accordance with Eq. (2). Symbols represent calculated values; the lines are a guide to the eye.