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. 2017 Apr 5;7:45875. doi: 10.1038/srep45875

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Copyright © 2017, The Author(s)

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(a) Normalised NBD-PE fluorescence emission, ΔF(t)/ΔF_max, versus time, t, upon mixing labelled SMALPs at a total lipid concentration of 0.25 mM with unlabelled SMALPs at various c_L. Shown are experimental data (coloured dots) and a global fit (solid lines) based on equation (5). (b) Lipid exchange rate constants, k_obs, derived from local fits to data in panel a according to equation (4) (open circles) and results from a global fit (solid line) according to equation (5). Error bars are 95% confidence intervals of local fits. Inset: Zoomed view at low c_L. (c) Absolute contributions to k_obs of diffusional and collisional processes. Inset: Same data as relative contributions.