Photophysics of 1-ethynylpyrene-modified RNA base adenine

被引:16
作者
Foerster, Ute [1 ]
Gildenhoff, Nina [1 ]
Gruenewald, Christian [2 ]
Engels, Joachim W. [2 ]
Wachtveitl, Josef [1 ]
机构
[1] Goethe Univ Frankfurt, Inst Phys & Theoret Chem, D-60438 Frankfurt, Germany
[2] Goethe Univ Frankfurt, Inst Organ Chem & Chem Biol, D-60438 Frankfurt, Germany
关键词
Fluorescence; Absorption; Pyrene; Charge transfer; PYRENE; FLUORESCENCE; PROBE;
D O I
10.1016/j.jlumin.2009.03.033
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
The photophysical behaviour of a pyrene-modified adenine base is examined. Time-dependent absorption and fluorescence spectroscopy is used to shed light on the fluorescence behavior and the charge transfer between the fluorophore and the nucleobase. The results from TCSPC, fluorescence upconversion and pump-probe absorption spectroscopy are reported, compared and analyzed. This study is a prerequisite for the detailed characterization of RNA dynamics in real time and on a molecular time scale. (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码:1454 / 1458
页数:5
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