| Literature DB >> 26384336 |
Huirong Yao1, Lifang Chang1, Chang Liu1, Xiaojie Jiao1, Song He1, Haijun Liu2, Xianshun Zeng3.
Abstract
A novel homodimer of the styryldehydropyridocolinium dye (TPTP) has been synthesized and characterized. Free TPTP exhibited low fluorescence quantum yield and large Stokes shift (over 160 nm) in water. However, it showed a significant fluorescence turn-on effect upon intercalation into DNA base pairs. Meanwhile, the fluorescence intensity of the intercalated structures formed by TPTP and DNA decreased quickly upon addition of deoxyribonuclease I, indicating that the dye can be used to monitor deoxyribonuclease I activity and DNA hydrolysis. Electrophoresis analysis revealed that the dye had intercalative binding to DNA and can potentially be used for DNA staining in electrophoresis. Thus, the innate nature of large Stokes shift and excellent fluorescence turn on effect upon interaction with DNA endue the dye with a wide range of applications.Entities:
Keywords: Cyanine; DNA; Fluorescence spectroscopy; Sensor; Styryldehydropyridocolinium dye
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Year: 2015 PMID： 26384336 DOI： 10.1007/s10895-015-1650-x
Source DB: PubMed Journal: J Fluoresc ISSN： 1053-0509 Impact factor: 2.217