title: G-quadruplex facilitated turn-off fluorescent chemosensor for selective detection of cupric ion.
abstract: A simple turn-off fluorescent method was utilized to quantitatively detect Cu(II) which can selectively quench fluorescent dye molecules. Addition of DNA G-quadruplex into the solution significantly magnifies the discrimination, lowers the limit of detection and broadens the linear response range.
authors.affiliation: State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, China.
authors.forename: Haixia
authors.initials: H
authors.lastname: Qin
authors.forename: Jiangtao
authors.initials: J
authors.lastname: Ren
authors.forename: Jiahai
authors.initials: J
authors.lastname: Wang
authors.forename: Erkang
authors.initials: E
authors.lastname: Wang
mesh_terms: D003300:Copper / Q000032:analysis*; D005456:Fluorescent Dyes / Q000737:chemistry*; D054856:G-Quadruplexes; D013050:Spectrometry, Fluorescence
chemical_list: D005456:Fluorescent Dyes; D003300:Copper