A novel AIE chemosensor based on quinoline functionalized Pillar[5]arene for highly selective and sensitive sequential detection of toxic Hg2+ and CN−

Ma, Xiaoqiang; Wang, Yun; Wei, Tai‐Bao; Liu, Qi; Jiang, Xiaomei; Ding, Jin-Dong; Zhu, Wenbo; Yao, Hong; Zhang, Youming; Lin, Qi

doi:10.1016/j.dyepig.2019.01.049

Cited by 76 publications

(19 citation statements)

References 81 publications

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“…Pillar [5]arene functionalized quinoline based AIE chemosensor has been synthesized through self-assembly ( Figure 73) which appeared at 410 nm upon introducing Hg 2 + to chemosensor 75. [103] The fluorescence intensity at 410 nm has been decreased sharply because of formation of metal-coordinated polymer 75-Hg 2 + . With competitive coordinating interactions, complex 75-Hg 2 + was showed selective 'turn-on' behaviour for the detection of CN À .…”

Section: Fluorescent Sensors For Hg 2 + Ionsmentioning

confidence: 99%

8‐Hydroxyquinoline Fluorophore for Sensing of Metal Ions and Anions

Rohini

Paul

Luxami

2020

The Chemical Record

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Among various known hydroxyquinolines, 8-hydroxyquinoline (8-HQ) is the most prevalent moiety due to excellent property for the formation of the complex with different metal ions and anions, and utilized in a wide variety of applications in pharmacological and medicinal fields. 8-Hydroxyquinoline moiety and its analogues acts as fluorophoric ligands on complex formation with alkali and alkaline as well as transition metal ions and anions, thus, considered as an ideal building block in metallo-supramolecular chemistry for recognition, separation, and quantitative investigation of cations. 8-Hydroxyquinoline moiety is also used in various applications for the advancement of novel fluorescent chemosensors in a wide variety of areas viz., material chemistry, bioorganic chemistry, molecular imaging, analytical chemistry, molecular recognition, medical and biological science communities. The present review emphasises on the progress of sensing properties of 8-HQ centred small-molecule fluorescent chemosensors towards several metal ions viz.

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Section: Fluorescent Sensors For Hg 2 + Ionsmentioning

confidence: 99%

8‐Hydroxyquinoline Fluorophore for Sensing of Metal Ions and Anions

Rohini

Paul

Luxami

2020

The Chemical Record

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“…A more detailed schematic of their sensing mechanisms is shown in Scheme 6. The self-assembly of pillar[5]arene derivatives B12 and tripodal compound B13 via π-π stacking interactions turned on blue emission for both networks [85,86]. The addition of Hg 2+ to supramolecular network of B12 , and picric acid to that of B13 disrupted the self-assembly resulting in the quenching of blue fluorescence.…”

Section: Sensing Of Cyanidementioning

confidence: 99%

“…The addition of Hg 2+ to supramolecular network of B12 , and picric acid to that of B13 disrupted the self-assembly resulting in the quenching of blue fluorescence. Interestingly, the blue fluorescence can be recovered via the introduction of cyanide, which selectively interacted with Hg 2+ (to form Hg(CN) 2 ) and picric acid (deprotonating it to form HCN) thereby reinstating the self-assembly of B12 and B13 [85,86]. B12 and B13 sensed Hg 2+ and picric acid with a detection limit of 25.3 nM and 11.9 nM, respectively, and the subsequent compositions sensed cyanide with a detection limit of 77.1 nM and 0.745 μM, respectively [85,86].…”

Section: Sensing Of Cyanidementioning

confidence: 99%

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Recent Advances in Aggregation-Induced Emission Chemosensors for Anion Sensing

et al. 2019

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The discovery of the aggregation-induced emission (AIE) phenomenon in the early 2000s not only has overcome persistent challenges caused by traditional aggregation-caused quenching (ACQ), but also has brought about new opportunities for the development of useful functional molecules. Through the years, AIE luminogens (AIEgens) have been widely studied for applications in the areas of biomedical and biological sensing, chemosensing, optoelectronics, and stimuli responsive materials. Particularly in the application of chemosensing, a myriad of novel AIE-based sensors has been developed to detect different neutral molecular, cationic and anionic species, with a rapid detection time, high sensitivity and high selectivity by monitoring fluorescence changes. This review thus summarises the recent development of AIE-based chemosensors for the detection of anionic species, including halides and halide-containing anions, cyanides, and sulphur-, phosphorus- and nitrogen- containing anions, as well as a few other anionic species, such as citrate, lactate and anionic surfactants.

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“…Recently, several scientific reports have been made for the detection of Hg 2+ ion and it is interfering with other metal ions or anions . Most of the reported probes are fluorogenic quencher or enhancer within the presence of Hg 2+ .…”

Section: Introductionmentioning

confidence: 99%

A Pyrazole‐Based Highly Selective Colorimetric Chemosensor for Hg²⁺ Ion in Semi‐Aqueous Medium

et al. 2020

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In this study, a pyrazole‐based (Py‐KS) chemosensor was successfully designed and synthesized via Knoevenagel condensation and utilized as a colorimetric chemosensor for selective determination of Hg2+ in semi‐aqueous media. The probe exhibits a typical absorption band at 519 nm upon interaction with Hg2+, which is responsible for remarkable color change from yellow to pink. The detection limit of Py‐KS for the analysis of Hg2+ was found to be 4.73×10−7 M. The binding modes of interaction of Py‐KS with Hg2+ have been determined by Job's plot which exhibits 2:1 (Py‐KS: Hg2+) ratio, and further confirmed with 1H NMR titration and FT‐IR analysis. The association constant of Py‐KS‐Hg2+ complex was found as 1.2×103 M−1 using Benesi‐Hildebrand method. The probe could be recyclable after appropriate treatment with the reagents such as EDTA. Moreover, the designed probe Py‐KS has successfully demonstrated for the detection of Hg2+ in real sample analysis.

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A novel AIE chemosensor based on quinoline functionalized Pillar[5]arene for highly selective and sensitive sequential detection of toxic Hg2+ and CN−

Cited by 76 publications

References 81 publications

8‐Hydroxyquinoline Fluorophore for Sensing of Metal Ions and Anions

8‐Hydroxyquinoline Fluorophore for Sensing of Metal Ions and Anions

Recent Advances in Aggregation-Induced Emission Chemosensors for Anion Sensing

A Pyrazole‐Based Highly Selective Colorimetric Chemosensor for Hg²⁺ Ion in Semi‐Aqueous Medium

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A novel AIE chemosensor based on quinoline functionalized Pillar[5]arene for highly selective and sensitive sequential detection of toxic Hg2+ and CN−

Cited by 76 publications

References 81 publications

8‐Hydroxyquinoline Fluorophore for Sensing of Metal Ions and Anions

8‐Hydroxyquinoline Fluorophore for Sensing of Metal Ions and Anions

Recent Advances in Aggregation-Induced Emission Chemosensors for Anion Sensing

A Pyrazole‐Based Highly Selective Colorimetric Chemosensor for Hg2+ Ion in Semi‐Aqueous Medium

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A Pyrazole‐Based Highly Selective Colorimetric Chemosensor for Hg²⁺ Ion in Semi‐Aqueous Medium