A diarylethene-based "on–off–on" fluorescence sensor for the sequential recognition of mercury and cysteine. Issue 33 (10th April 2017)

• Record Type: Journal Article
• Authors: Li, Gang; Ma, Lele; Liu, Gang; Fan, Congbin; Pu, Shouzhi
• Is Part Of: RSC advances. Volume 7:Issue 33(2017)
• Page Start: 20591
• Page End: 20596
• Publication Date: 2017-04-10
• Subjects: Chemistry -- Periodicals; 540.5
• DOI: 10.1039/c6ra27773j
• Languages: English
• ISSNs: 2046-2069

Abstract

Abstract : A novel photochromic diarylethene with a quinoline unit was synthesized with multi-controllable fluorescence switching properties, which could be induced by light, mercury (Hg 2+ ) and cysteine (Cys). Abstract : A novel photochromic diarylethene with a quinoline unit was synthesized with multi-controllable fluorescence switching properties, which could be induced by light, mercury (Hg 2+ ) and cysteine (Cys). Because the diarylethene displayed obvious fluorescence quenching with Hg 2+ and the fluorescence was recovered to its original state evidently with Cys, it could sequentially recognize Hg 2+ and Cys. Additionally, a logic circuit was constructed with the fluorescence intensity at 468 nm as output, and the combined stimuli of light and chemicals as inputs.