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Spectra for the two distinct kinetic components at 270 K, the faster one (red) and the slower one (blue), obtained by global fit of data in Figure 7A and 7B, correspondingly. A: purple membranes surrounded by liquid water, i.e. reached along the cooling branch in Figure 2. B: purple membranes surrounded by frozen water, i.e. reached along the heating branch in Figure 2.
