Analysing the CDF and RDF we observed non-uniform densities, with the very centre of the micelle being less dense, as also frequently found for lipid membranes . The core is expectedly surrounded by the less dense layer of the hydrophilic EO moieties. The non-uniformity of the core density may be responsible for the small deviations found in the fit analysis, as in Figure , which employ a uniform core-shell model. This limitation may be especially relevant at high q, where a non-uniform core may induce dampening of the oscillations in the signal.