Figure 3

Representative histological images for DNCB-induced rashes treated with various nanocrystalline silver-derived solutions. Representative images, including portions of both the epidermis and the dermis, are shown at 0, 24, 48, and 72 h for negative controls (pigs which did not have rashes and were treated with distilled water-soaked gauze) (A-D), positive controls (pigs which had DNCB-induced rashes which were treated with distilled water-soaked gauze) (E-H), and animals with DNCB-induced rashes treated with nanocrystalline silver-derived solutions generated at starting pHs of 4 (I-L), 5.6 (M-P), 7 (Q-T), or 9 (U-X). Cell nuclei were stained purple with haematoxylin, while cytoplasm was stained pink with eosin. The scale bar in A represents 100 μm.