title: New fluorescent sensor for Cu(2+) and S(2-) in 100% aqueous solution based on displacement approach.
abstract: An On-Off-On type fluorescent sensor (HL) has been developed, which exhibited high selectivity and sensitivity for Cu(2+) over other common ions in 100% aqueous solution. Once HL combined with Cu(2+), blue fluorescence was almost completely quenched and the L-Cu ensemble was formed. Moreover, the ensemble showed high specificity for S(2-) based on the displacement approach, and no interferences were observed in the presence of other anions. Such fluorescence modulation behavior simulates the performance of an IMPLICATION logic gate. In addition, the fluorescent sensor was successfully applied to fluorescent cellular imaging implying potential applications in physiological and environmental systems.
authors.affiliation: The College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou 450001, P. R. China. zangsqzg@zzu.edu.cn.
authors.forename: Yan
authors.initials: Y
authors.lastname: Fu
authors.forename: Qing-Chuan
authors.initials: QC
authors.lastname: Feng
authors.forename: Xiu-Juan
authors.initials: XJ
authors.lastname: Jiang
authors.forename: Hong
authors.initials: H
authors.lastname: Xu
authors.forename: Min
authors.initials: M
authors.lastname: Li
authors.forename: Shuang-Quan
authors.initials: SQ
authors.lastname: Zang
mesh_terms: D001562:Benzimidazoles / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology; D001565:Benzoates / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology; D045744:Cell Line, Tumor; D002470:Cell Survival / Q000187:drug effects; D003300:Copper / Q000032:analysis*; D006801:Humans; D009682:Magnetic Resonance Spectroscopy; D008856:Microscopy, Fluorescence; D015394:Molecular Structure; D013050:Spectrometry, Fluorescence / Q000379:methods*; D021241:Spectrometry, Mass, Electrospray Ionization; D013440:Sulfides / Q000032:analysis*
chemical_list: D001562:Benzimidazoles; D001565:Benzoates; D013440:Sulfides; D003300:Copper