Penzkofer, A. and Bansal, A. K. and Song, S.-H. and Dick, B. (2007) Fluorescence quenching of flavins by reductive agents. CHEMICAL PHYSICS, 336 (1). pp. 14-21. ISSN 0301-0104,
Full text not available from this repository. (Request a copy)Abstract
The fluorescence behaviour of the flavins riboflavin, flavin mononucleotide (FMN), flavin adenine dinucleotide (FAD), and lumiflavin in aqueous solution at pH 8 in the presence of the reducing agents beta-mercaptoethanol (beta-ME), dithiothreitol (DTT), and sodium nitrite (NaNO2) is studied under aerobic conditions. The fluorescence quantum yields and fluorescence lifetimes are determined as a function of the reducing agent concentration. For all three reducing agents diffusion controlled dynamic fluorescence quenching is observed which is thought to be due to photo-induced reductive electron transfer. For DTT additionally static fluorescence quenching occurs. (c) 2007 Elsevier B.V. All rights reserved.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | SENSITIZED PHOTO-OXIDATION; BLUE-LIGHT PHOTORECEPTOR; LASER FLASH-PHOTOLYSIS; RHODAMINE 6G SOLUTIONS; AQUEOUS-SOLUTION; SPECTROSCOPIC CHARACTERIZATION; CHLAMYDOMONAS-REINHARDTII; RHODOBACTER-SPHAEROIDES; ADENINE-DINUCLEOTIDE; ELECTRON-TRANSFER; flavins; riboflavin; lumiflavin; FMN; FAD; beta-mereaptoethanol; dithiothreitol; sodium nitrite; dynamic fluorescence quenching; static fluorescence quenching; reductive electron transfer |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Experimental and Applied Physics > Alumni or Retired Professors > Group Alfons Penzkofer |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 04 Dec 2020 07:02 |
| Last Modified: | 04 Dec 2020 07:02 |
| URI: | https://pred.uni-regensburg.de/id/eprint/32503 |
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