Emission lifetime study of fluorescence probes based on G-quadruplex oligonucleotides end-labeled with pyrene moieties
Authors:
- Anna Renata Dembska,
- Tomasz Pędziński,
- S. Takenaka,
- Bernard Juskowiak
Abstract
Fluorescence lifetime study of two probes abbreviated as Py-Htelom-Py and Py-TBA-Py, carrying pyrene moieties at both termini and sequences of Human telomere and Thrombin Binding Aptamer, respectively are reported. The effect of potassium ion on the photophysical processes was examined in order to elucidate factors that facilitate the production of excimer emission. Emission kinetics data indicated that the relative orientation of pyrene and neighboring nucleobase (guanine, adenine, thymine) plays a crucial role in determining both the rate of electron-transfer quenching of pyrene excited state and the efficiency of excimer emission. © 2010 - IOS Press and the authors. All rights reserved.
- Record ID
- UAM07a028ee2f744ffcaa29546c8d1532c1
- Author
- Journal series
- Spectroscopy-An International Journal, ISSN 0712-4813
- Issue year
- 2010
- Vol
- 24
- Pages
- 325-331
- ASJC Classification
- DOI
- DOI:10.3233/SPE-2010-0446 Opening in a new tab
- Language
- (en) English
- Score (nominal)
- 0
- Score source
- journalList
- Publication indicators
- = 2; = 2; : 2010 = 0.462; : 2010 (2 years) = 0.932 - 2010 (5 years) =1.079
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- Uniform Resource Identifier
- https://researchportal.amu.edu.pl/info/article/UAM07a028ee2f744ffcaa29546c8d1532c1/
- URN
urn:amu-prod:UAM07a028ee2f744ffcaa29546c8d1532c1
* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or PerishOpening in a new tab system.