Figure 3
From: Studying the penetration of fatty acids into human skin by ex vivo TOF-SIMS imaging
Average ion intensities of the different fatty acids as a function of depth in the human skin sections for: top left capric acid (a), top right lauric acid (b), bottom left linoleic acid (c), bottom right oleic acid (d). Each viewgraph presents a combination of both experiments: 10% fatty acid in PEG 400 (solid black lines) and control (solid red lines). Note that depth of skin could not be associated to in vivo conditions as swelling of skin occurs in diffusion cells due to absorption of acceptor medium, circulating underneath the skin sample.