Figure 3. Hematoxylin-stained skin exposed to nanoparticles

Light transmission microscopy of hematoxylin-stained skin specimens exposed to nanoparticles; melanin granules (see magenta arrows) are clearly recognizable in b and c, much less in a, in the stratum basale of the viable epidermis; bar = 50 μm; reproduced with permission from Reference 10.