Simultaneous determination of Hg(II) and Zn(II) using a GFP inspired chromophore

L. Shi, Y. Li, Z.-P. Liu, T.D. James, Y.-T. Long

Research output: Contribution to journalArticlepeer-review

29 Citations (Scopus)

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.
Original languageEnglish
Pages (from-to)401-404
Number of pages4
JournalTalanta
Volume100
Early online date9 Aug 2012
DOIs
Publication statusPublished - 15 Oct 2012

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