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An aggregation-induced emission-based fluorescence turn-on probe for Hg²⁺ and its application to detect Hg²⁺ in food samples.

ABSTRACT: In this work, we presented a new tetraphenylethene-derived fluorescent probe TPE-M for Hg²⁺ detection in an aqueous solution. Probe TPE-M is molecularly dissolved in CH₃OH/PBS (20 mM, pH = 7.4) (3 : 7, v/v) mixed solution and is almost non-emissive. Reaction of TPE-M with Hg²⁺ leads to release of an AIE-active precursor 4, and results in a significant fluorescence enhancement. The Hg²⁺ recognition process has some distinct advantages including rapid response, high selectivity and sensitivity, strong anti-interference ability, and a low detection limit (4.16 × 10^-6 M). Moreover, the probe is applicable to detect Hg²⁺ in real food samples such as shrimp, crab and teas, suggesting the practical applicability of TPE-M.

SUBMITTER: Tang L

PROVIDER: S-EPMC9067245 | biostudies-literature | 2019 Jul

REPOSITORIES: biostudies-literature

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An aggregation-induced emission-based fluorescence turn-on probe for Hg2+ and its application to detect Hg2+ in food samples.

Tang Lijun L Yu Haili H Zhong Keli K Zhong Keli K Gao Xue X Li Jianrong J

RSC advances 20190729 40

In this work, we presented a new tetraphenylethene-derived fluorescent probe TPE-M for Hg2+ detection in an aqueous solution. Probe TPE-M is molecularly dissolved in CH3OH/PBS (20 mM, pH = 7.4) (3 : 7, v/v) mixed solution and is almost non-emissive. Reaction of TPE-M with Hg2+ leads to release of an AIE-active precursor 4, and results in a significant fluorescence enhancement. The Hg2+ recognition process has some distinct advantages including rapid re ...[more]

PMID: 35514521

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