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Triazole-imidazole (TA-IM) derivatives as ultrafast fluorescent probes for selective Ag+ detection.

ABSTRACT: 1,2,3-Triazole-imidazole derivatives (TA-IM) were prepared as fluorescent probes for silver ion detection. The design principle is the incorporation of an intramolecular H-bond between the imidazole and triazole moiety that enables a co-planar conformation to achieve fluorescence emission in the UV-blue range. Screening of different metal ions revealed excellent binding affinity of this new class of compounds toward silver ions in aqueous solution. The novel probe provided ultrafast detection (<30 s) even for a very low concentration of silver ions (in the nM range) with good linear correlation, making it a practical sensor for detection of silver ions.

SUBMITTER: Lai Q

PROVIDER: S-EPMC6493330 | biostudies-literature | 2018 Oct

REPOSITORIES: biostudies-literature

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Triazole-imidazole (TA-IM) derivatives as ultrafast fluorescent probes for selective Ag<sup>+</sup> detection.

Lai Qi Q Liu Qing Q He Ying Y Zhao Kai K Wei Chiyu C Wojtas Lukasz L Shi Xiaodong X Song Zhiguang Z

Organic & biomolecular chemistry 20181001 42

1,2,3-Triazole-imidazole derivatives (TA-IM) were prepared as fluorescent probes for silver ion detection. The design principle is the incorporation of an intramolecular H-bond between the imidazole and triazole moiety that enables a co-planar conformation to achieve fluorescence emission in the UV-blue range. Screening of different metal ions revealed excellent binding affinity of this new class of compounds toward silver ions in aqueous solution. The novel probe provided ultrafast detection (< ...[more]

PMID: 30328458

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