photodynamic therapy Walker carcinosarcoma 256 cells 1 cancer 1 dye sensitizer 1 inflammation 1 matrix LED illuminator 1 methyl pheophorbide-a 1 methylene blue 1 photosensitization 1 photosensitizer Hyperflav 1 photosensitizing agent 1 singlet oxygen 1 матричный светодиодный излучатель 1 фотодинамическая терапия 1 фотосенсибилизатор Гиперфлав 1