| The photoproduct again undergoes photobleaching during the second illumination. |
| Photoproduct levels may reflect the net photochemical effects of light and oxygen within tissue on native photosensitizers. |
| Conversion of the photoproduct could be achieved by thermal activation measured in temperature-cycling experiments. |
| Genotoxic and mutagenic effects were especially found for one photoproduct suggesting that transformation products, as frequently demonstrated, may show effects higher than the respective parental compound. |
| Thus, continuous illumination creates another kind of deprotonated Schiff base containing photoproduct unrelated to the azide photocycle we described here. |
| At low TrpH concentration and high oxygen concentration, the reaction of singlet oxygen with TrpH stoichiometrically produces N-formylkynurenine as a single photoproduct. |
