Photosensitizers article 14 chemistry 12 pH 10 photosensitizing agent 10 Photochemistry 8 light 8 unclassified drug 8 Carbolines 6 DNA 6 Light 6 Molecular Structure 6 Oxygen 6 Reactive oxygen species 6 chemical structure 6 oxygen 6 photochemistry 6 2' deoxy 5' adenosine monophosphate 4 2'-deoxy-5'-adenosine monophosphate 4 Cesium 4 DNA Damage 4 DNA damage 4 Deoxyadenine Nucleotides 4 Electric excitation 4 Electron Transport 4 Electron transfer 4 Electronic excited state 4 Fluorescence 4 Harmine 4 Hydrogen-Ion Concentration 4