Fig. 2. (A) NR measurements of a DMPC–DMPG (all tail deuterated) SLB at a molar ratio of 9 : 1 before and after being exposed to 1 μM 3W32 and 3W62. Reflectivity profiles for the measurements plotted together with the best fit. (B) SLD profiles resulting from the fit analysis against distance from the interface for an SLB before and after exposure to peptide. The data has been shifted in y-axis for clarity.