title: Simultaneous determination of Hg(II) and Zn(II) using a GFP inspired chromophore.
abstract: A dual-function chemosensor for Hg(2+) and Zn(2+) ions, inspired by the green fluorescent protein (GFP) chromophore, was designed and synthesized, which could specifically recognize Zn(2+) through an "OFF-ON" fluorescence mechanism due to the restriction of the free rotation of the aryl-alkene bond, whilst also producing a selective visible colorimetric response from yellow to pink with Hg(2+) ions. The response upon exposure to Zn(2+) and Hg(2+) is instantaneous, and the detect limits of Zn(2+) and Hg(2+) are 2.18×10(-8) M and 4.91×10(-7) M respectively.
authors.affiliation: State Key Laboratory of Bioreactor Engineering, and Department of Chemistry, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, PR China.
authors.forename: Lei
authors.initials: L
authors.lastname: Shi
authors.forename: Yang
authors.initials: Y
authors.lastname: Li
authors.forename: Zhao-Peng
authors.initials: ZP
authors.lastname: Liu
authors.forename: Tony D
authors.initials: TD
authors.lastname: James
authors.forename: Yi-Tao
authors.initials: YT
authors.lastname: Long
mesh_terms: D040761:Biomimetic Materials / Q000737:chemistry*; D002623:Chemistry Techniques, Analytical / Q000295:instrumentation*; D003116:Color; D003124:Colorimetry; D004785:Environmental Pollutants / Q000032:analysis* / Q000737:chemistry; D049452:Green Fluorescent Proteins / Q000737:chemistry*; D008628:Mercury / Q000032:analysis* / Q000737:chemistry; D013050:Spectrometry, Fluorescence; D013056:Spectrophotometry, Ultraviolet; D013997:Time Factors; D015032:Zinc / Q000032:analysis* / Q000737:chemistry
chemical_list: D004785:Environmental Pollutants; D049452:Green Fluorescent Proteins; D008628:Mercury; D015032:Zinc