Figure 5
From: Photosensitization of a subcutaneous tumour by the natural anthraquinone parietin and blue light
PTN penetration into the tumour. SOT was topically applied with 1.96 mg of PTN in DMSO. After 2 h, tumours were excised, and fluorescence of fresh sections was visualized by fluorescence microscopy. The basal superficial section of the skin (upper plane) and the deeper region (mid-plane) were documented at × 10. Controls treated with DMSO were included.
