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A Naphthalimide-Based Fluorescence "Off-on-Off" Chemosensor for Relay Detection of Al³⁺ and ClO.

ABSTRACT: A novel Al³⁺ chemosensor NPA was designed and synthesized on basis of the mechanism of ICT and CHEF. Upon addition of Al³⁺, the probe NPA displayed a bright green fluorescence under UV radiation and visual color change from yellow to colorless. Spectrum titrations showed that NPA could be recognized as a fluorescent turn-on probe with 10^-8 M detection level. The probe was successfully applied in real water sample and test paper. More important, NPA-Al³⁺ complex were used as a fluorescent turn-off probe for the detection of ClO^- with the detection as low as 2.34 × 10^-8 M. The performance of NPA to Al³⁺ and NPA-Al³⁺ complex to ClO^- demonstrated that NPA could be served as a sensitive probe and exhibit INHIBIT logic gate behavior with Al³⁺ and ClO^- as inputs.

SUBMITTER: Sun XJ

PROVIDER: S-EPMC6687763 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature

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A Naphthalimide-Based Fluorescence "Off-on-Off" Chemosensor for Relay Detection of Al3+ and ClO.

Sun Xue-Jiao XJ Liu Ting-Ting TT Fu Hong H Li Na-Na NN Xing Zhi-Yong ZY Yang Fan F

Frontiers in chemistry 20190802

A novel Al3+ chemosensor NPA was designed and synthesized on basis of the mechanism of ICT and CHEF. Upon addition of Al3+, the probe NPA displayed a bright green fluorescence under UV radiation and visual color change from yellow to colorless. Spectrum titrations showed that NPA could be recognized as a fluorescent turn-on probe with 10-8 M detection level. The probe was successfully applied in real water sample and test paper. More importan ...[more]

PMID: 31428604

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