Encyclopedia of Cancer

2009 Edition
| Editors: Manfred Schwab

Photochemical Reaction Type-II

Reference work entry
DOI: https://doi.org/10.1007/978-3-540-47648-1_4548


Of an activated photosensitizer after intersystem crossing to the triplet state. The photosensitizer transfers energy to triplet oxygen, which is activated to the reactive singlet state. Photochemical reactions type-I and type-II cause the production of reactive oxygen (ROS), the cytotoxic product employed in photodynamic therapy for destruction of tumor cells.

 Photodynamic Therapy

 Reactive Oxygen Species

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