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Updated: Mar 21, 2026

Expression and Purification of Nuclease-Free Oxygen Scavenger Protocatechuate 3,4-Dioxygenase
Published on: November 8, 2019
Role of Distance in Singlet Oxygen Applications: A Model System
Matthias Klaper1, Werner Fudickar1, Torsten Linker1
1Department of Chemistry, University of Potsdam , Karl-Liebknecht-Strasse 24-25, 14476 Golm, Germany.
Abstract:
Herein, we present a model system that allows the investigation of a directed intramolecular singlet oxygen ((1)O2) transfer. Furthermore, we show the influence of singlet oxygen lifetime and diffusion coefficient (D) on the preference of the intramolecular reaction over the intermolecular one in competition experiments. Finally, we demonstrate the distance dependence in quenching experiments, which enables us to draw conclusions about the role of singlet oxygen and (1)O2 carriers in photodynamic therapy.
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