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SEM images of neat Neusilin® UFL2 at 270× (a), 1000× (b) and 6500× (c) magnifications and 1:1 w/w mixture of Neusilin® UFL2 with PEG-35 castor oil (Cremophor® EL) at 270× (d), 1500× (e) and 8000× (f) magnifications. Microscope scales are shown with the images for comparison of dimensions.
