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• W2621122867 endingPage "201" @default.
• W2621122867 startingPage "189" @default.
• W2621122867 abstract "Novel supramolecular hybrid containing polyethyleneimine-functionalized graphene quantum dots (PEI-GQDs) and mercaptopyridine-substituted zinc phthalocyanine (Pc)[email protected] nano-alloys is presented in this study. The designed hybrid was employed as a dual fluorescence nanoprobe for Hg2+ and biothiol detection in aqueous solution using PEI-GQDs as the fluorescence switching signal probe. The dual sensing platform for the analytes detection is firstly, based on the quenching (turn “OFF”) of the PEI-GQDs fluorescence upon π-π interaction or electrostatic attraction with [email protected] conjugate. The quenched fluorescence can be switched back to the “ON” mode in the presence of Hg2+ and switched “OFF” again when biothiols are introduced to capture the Hg2+ ion via the formation of the strong metal-thiol bond (Hg-S). The “off-on-off” processes were modulated by different amounts of Hg2+ and biothiols. The nanoprobes were found to be highly stable and selective towards the target analytes in the presence of other amino acids and metal ions. Also, the probes were successfully deployed in the assay of the test analytes in spiked samples." @default.
• W2621122867 created "2017-06-09" @default.
• W2621122867 creator A5024493862 @default.
• W2621122867 creator A5057135938 @default.
• W2621122867 date "2017-10-01" @default.
• W2621122867 modified "2023-09-25" @default.
• W2621122867 title "Graphene quantum dots anchored onto mercaptopyridine-substituted zinc phthalocyanine-Au@Ag nanoparticle hybrid: Application as fluorescence “off-on-off” sensor for Hg2+ and biothiols" @default.
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• W2621122867 doi "https://doi.org/10.1016/j.dyepig.2017.06.002" @default.
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