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An ICT-Based Coumarin Fluorescent Probe for the Detection of Hydrazine and Its Application in Environmental Water Samples and Organisms.

ABSTRACT: As an inorganic small molecule pollutant, the toxicity and potential carcinogenicity of hydrazine (N2H4) are of increasing concern. In this work, A water-soluble fluorescent probe (OCYB) based on the intramolecular charge transfer (ICT) mechanism for the detection of hydrazine was designed and synthesized. Taking the advantage of 4-bromobutyryl as the recognition group, the high selectivity of OCYB to N2H4 was confirmed by steady-state fluorescence spectroscopy. The limit of detection (LOD) was calculated to be 78 nM in the DMSO-HEPES (pH 7.4) system. The detection mechanism was verified by NMR, HRMS and density functional theory (DFT) calculations. In addition, OCYB exhibits strong anti-interference ability and an "Off-On" fluorescence enhancement effect. Importantly, OCYB can be used to effectively monitor the fluorescence distribution of N2H4 in environmental water samples and organisms.

SUBMITTER: Liu X 

PROVIDER: S-EPMC9237640 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature

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An ICT-Based Coumarin Fluorescent Probe for the Detection of Hydrazine and Its Application in Environmental Water Samples and Organisms.

Liu Xina X   Zhu Meiqing M   Xu Chenyang C   Fan Fugang F   Chen Panpan P   Wang Yi Y   Li Dongyang D  

Frontiers in bioengineering and biotechnology 20220614

As an inorganic small molecule pollutant, the toxicity and potential carcinogenicity of hydrazine (N<sub>2</sub>H<sub>4</sub>) are of increasing concern. In this work, A water-soluble fluorescent probe (OCYB) based on the intramolecular charge transfer (ICT) mechanism for the detection of hydrazine was designed and synthesized. Taking the advantage of 4-bromobutyryl as the recognition group, the high selectivity of OCYB to N<sub>2</sub>H<sub>4</sub> was confirmed by steady-state fluorescence spe  ...[more]

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