title: A new "turn-on" naphthalenedimide-based chemosensor for mercury ions with high selectivity: successful utilization of the mechanism of twisted intramolecular charge transfer, near-IR fluorescence, and cell images.
abstract: For the first time, a new near-IR "turn-on" fluorescent chemosensor with high selectivity for Hg(2+) ions was designed according to the twisted intramolecular charge transfer (TICT) mechanism. The selective fluorescence enhancement effect can be optimized by modulating the solvent systems. And this naphthalenedimide-based sensor with long wavelength absorption and emission can be used to image intracellular Hg(2+) ions in living Hela cells.
authors.affiliation: Department of Chemistry, Wuhan University, Wuhan 430072, China.
authors.forename: Qianqian
authors.initials: Q
authors.lastname: Li
authors.forename: Ming
authors.initials: M
authors.lastname: Peng
authors.forename: Huiyang
authors.initials: H
authors.lastname: Li
authors.forename: Cheng
authors.initials: C
authors.lastname: Zhong
authors.forename: Liang
authors.initials: L
authors.lastname: Zhang
authors.forename: Xiaohong
authors.initials: X
authors.lastname: Cheng
authors.forename: Xiaoniu
authors.initials: X
authors.lastname: Peng
authors.forename: Ququan
authors.initials: Q
authors.lastname: Wang
authors.forename: Jingui
authors.initials: J
authors.lastname: Qin
authors.forename: Zhen
authors.initials: Z
authors.lastname: Li
mesh_terms: D006367:HeLa Cells; D006801:Humans; D007094:Imides / Q000737:chemistry*; D008628:Mercury / Q000032:analysis*; D015394:Molecular Structure; D009281:Naphthalenes / Q000737:chemistry*; D013055:Spectrophotometry, Infrared
chemical_list: D007094:Imides; D009281:Naphthalenes; C542131:naphthalenediimide; D008628:Mercury