title: Silver(I) ions and cysteine detection based on photoinduced electron transfer mediated by cytosine-Ag(+)-cytosine base pairs.
abstract: Upon formation of cytosine-Ag(+)-cytosine base pairs as a mediator for the photoinduced electron transfer, the fluorescence of FAM-labeled DNA was quenched and the fluorescence emission wavelength exhibited a red shift. Based on these phenomena a novel dual-output fluorescent DNA sensor for Ag(+) ions and cysteine detection was developed.
authors.affiliation: Key Laboratory of Eco-environments in Three Gorges Reservoir Region (Ministry of Education), School of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, P.R.China.
authors.forename: Wan Yi
authors.initials: WY
authors.lastname: Xie
authors.forename: Wei Tao
authors.initials: WT
authors.lastname: Huang
authors.forename: Nian Bing
authors.initials: NB
authors.lastname: Li
authors.forename: Hong Qun
authors.initials: HQ
authors.lastname: Luo
mesh_terms: D020029:Base Pairing; D001483:Base Sequence; D003545:Cysteine / Q000737:chemistry*; D003596:Cytosine / Q000032:analysis*; D004579:Electron Transport; D005452:Fluoresceins / Q000737:chemistry; D007477:Ions / Q000737:chemistry*; D009841:Oligonucleotides / Q000737:chemistry; D055668:Photochemical Processes; D012834:Silver / Q000032:analysis*; D013050:Spectrometry, Fluorescence
chemical_list: D005452:Fluoresceins; D007477:Ions; D009841:Oligonucleotides; C024098:6-carboxyfluorescein; D012834:Silver; D003596:Cytosine; D003545:Cysteine