title: A Novel Styryldehydropyridocolinium Homodimer: Synthesis and Fluorescence Properties Upon Interaction with DNA.
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.
authors.affiliation: Tianjin Key Laboratory for Photoelectric Materials and Devices, School of Material Science & Engineering, Tianjin University of Technology, Tianjin, 300384, China.
authors.forename: Huirong
authors.initials: H
authors.lastname: Yao
authors.affiliation: Tianjin Key Laboratory for Photoelectric Materials and Devices, School of Material Science & Engineering, Tianjin University of Technology, Tianjin, 300384, China.
authors.forename: Lifang
authors.initials: L
authors.lastname: Chang
authors.affiliation: Tianjin Key Laboratory for Photoelectric Materials and Devices, School of Material Science & Engineering, Tianjin University of Technology, Tianjin, 300384, China.
authors.forename: Chang
authors.initials: C
authors.lastname: Liu
authors.affiliation: Tianjin Key Laboratory for Photoelectric Materials and Devices, School of Material Science & Engineering, Tianjin University of Technology, Tianjin, 300384, China.
authors.forename: Xiaojie
authors.initials: X
authors.lastname: Jiao
authors.affiliation: Tianjin Key Laboratory for Photoelectric Materials and Devices, School of Material Science & Engineering, Tianjin University of Technology, Tianjin, 300384, China.
authors.forename: Song
authors.initials: S
authors.lastname: He
authors.affiliation: Tianjin Institute of Animal Science and Veterinary Medicine, Tianjin, 300112, China.
authors.forename: Haijun
authors.initials: H
authors.lastname: Liu
authors.affiliation: Tianjin Key Laboratory for Photoelectric Materials and Devices, School of Material Science & Engineering, Tianjin University of Technology, Tianjin, 300384, China. xshzeng@tjut.edu.cn.
authors.forename: Xianshun
authors.initials: X
authors.lastname: Zeng
mesh_terms: D000818:Animals; D002232:Carbocyanines / Q000138:chemical synthesis* / Q000737:chemistry*; D002417:Cattle; D060326:Chemistry Techniques, Synthetic; D004247:DNA / Q000737:chemistry*; D019281:Dimerization; D005456:Fluorescent Dyes / Q000138:chemical synthesis* / Q000737:chemistry*; D055620:Optical Phenomena; D011108:Polymers / Q000138:chemical synthesis* / Q000737:chemistry*; D011807:Quinolizines / Q000138:chemical synthesis* / Q000737:chemistry*; D013050:Spectrometry, Fluorescence
chemical_list: D002232:Carbocyanines; D005456:Fluorescent Dyes; D011108:Polymers; D011807:Quinolizines; D004247:DNA; C427203:calf thymus DNA
keywords: Cyanine; DNA; Fluorescence spectroscopy; Sensor; Styryldehydropyridocolinium dye