From the radially averaged 1D scattering curves, the intensity at the first 40 Q-points were added together as a measure of the overall intensity I(t), at that time point. Experiments were repeated for membranes comprised of PC/PG lipids with different tail length and saturation, including DS and PO (see table ), both with and without prior incubation with AMPs, including indolicidin and LL-37. 3 Results and discussion