FIGURE 8.

The three smooth curves in the figure represent the best exponential fits to the experimental data from Fig. 1, with time constants (in units of 1/s) 0.25 (MβCD+Heparin), 0.023 (MβCD), and 0.004 (untreated). The data points represent the best theoretical fits, using the function in Eq. 11b for MβCD, and with the added raft correction (Eq. 26) for untreated cells. The fit parameters are c = 1.1 × 10⁻⁴ s⁻¹ in Eq. 11b and ω = 1.6 × 10⁻³ in Eq. 26. The corresponding values of the intrinsic variables are discussed in the main text, in Results, Comparison with Experiments. Note that, at late times, some of the data points for the clustered configuration cross 1, which indicates that the limit of applicability of the perturbation theory has been reached, and that higher-order terms in the perturbation series have to be taken into account.