A pyrene-benzthiazolium conjugate portraying aggregation induced emission, a ratiometric detection and live cell visualization of HSO3−

Diwan, Uzra; Kumar, Virendra; Mishra, Rakesh K.; Rana, Nishant Kumar; Koch, Biplob; Singh, Manish Kumar; Upadhyay, K. K.

doi:10.1016/j.aca.2016.04.057

Cited by 51 publications

(12 citation statements)

References 61 publications

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“…Similarly, AIE-based bisulphite sensors C1 – C3 (Scheme 7) with Michael acceptors can readily undergo a Michael addition with bisulphite nucleophile (Scheme 7). C1 in water/DMF (7:3 v / v ) emitted blue in the presence of HSO 3 − and SO 3 2 − anions (Figure 8a) due to the Michael addition of HSO 3 − and SO 3 2 − at the C=C bond bridging pyrene and benzthiazlium moieties, effectively inhibiting ICT between them [89]. Paper test strips coated with compound C1 also exhibited similar emission change (Figure 8b).…”

Section: Sensing Of Sulphur-containing Oxoanionsmentioning

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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Section: Sensing Of Sulphur-containing Oxoanionsmentioning

confidence: 99%

“…( b ) Photos showing emission change of C1-coated paper test strips on exposure to HSO 3 − . Reproduced with permission from [89]. Copyright 2016, Elsevier B. V. ( c ) Spectrofluorometric titration of C2 with HSO 3 − with photos showing the quenching of yellow emission upon exposure to the anion.…”

Section: Figures Schemes and Tablesmentioning

confidence: 99%

Recent Advances in Aggregation-Induced Emission Chemosensors for Anion Sensing

et al. 2019

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“…12 Synthesis of molecules containing pyrene is often associated with the recently discovered aggregation-induced emission (AIE). 13,14 Pyrene-containing probes are often employed for analytical purposes such as sensing of environmentally relevant analytes 15 and also for probing their interaction with DNA, the building block of life. 16 More often than not, these interactions are revealed by the modulation of the characteristic band corresponding to the pyrene excimer.…”

Section: Introductionmentioning

confidence: 99%

“…Because the polarity sensitivity of an ICT probe is great due to large dipole moment incurred by the same in the excited state, it is often employed as a sensor to study biologically relevant systems. , A very well known fluorophore that exhibits a rare photophysical phenomenon of excimer formation is pyrene . Synthesis of molecules containing pyrene is often associated with the recently discovered aggregation-induced emission (AIE). , Pyrene-containing probes are often employed for analytical purposes such as sensing of environmentally relevant analytes and also for probing their interaction with DNA, the building block of life . More often than not, these interactions are revealed by the modulation of the characteristic band corresponding to the pyrene excimer. , At this juncture, the probes capable of displaying ICT and excimer formation could be important.…”

Section: Introductionmentioning

confidence: 99%

Photophysical Properties of an Azine-Linked Pyrene–Cinnamaldehyde Hybrid: Evidence of Solvent-Dependent Charge-Transfer-Coupled Excimer Emission

2019

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We report the photophysical properties of a synthetic asymmetric azine-based compound (17 Z ,18 E )-4′-(( E )-3-phenylallylidene)-1′-(dimethylamino)-1-((pyren-8-yl)methylene)hydrazine ( PYNC ). The molecule PYNC shows an appreciable red shift in the emission maximum in a wide range of solvents. In water, PYNC shows the characteristic feature of excimer formation exclusively. However, in all other solvents, the excimer band is present alongside the charge transfer emission band. The assignment of charge transfer and excimer bands has been established by various steady-state emission spectral data. PYNC , owing to this novel excimer-coupled charge transfer phenomenon, can be a potential probe for studying various supramolecular assemblies of biological interest.

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“…The concept of AIE was coined by our group in 2001. , The aggregation-induced emission fluorogens (AIEgens) emitted intensely upon aggregate formation, which are very suitable for application on the solid-state sensing device. Thanks to the enthusiastic efforts of scientists worldwide, many AIEgens have been developed and used as fluorescence “turn-on” or “light-up” biosensors for metal ions , anions, , explosives, nerve agents, biological macromolecules, , pathogens, , and so on. Most of the AIEgens were applied in solution, which limited its real application.…”

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confidence: 99%

Development of Reaction-Based AIE Handy Pen for Visual Detection of Toxic Vapors

Huang

Jiao

Guo

et al. 2021

ACS Materials Lett.

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Exposure of toxic vapors had a harmful effect on human health. The solid-phase microextraction (SPME) device has been widely used because of its great simplicity, high efficiency, and low cost, especially when used for analysis of gaseous compounds through coupling with GC-MS. In this work, an on-site SPME-like handy detection device (termed AIE Handy Pen) was developed by decoration of toxic vapors responsive AIEgens (TPE-Py, responsive to diethyl chlorophosphite (DCP, nerve agent) or 1,2-dihydroquinoxaline (DQ2), responsive to amine vapor) on the SPME fiber by a sol–gel process. Thanks to its unique solid-state emission characteristics, the AIEgens can be illuminated upon exposure to gaseous compounds on the fiber, and the fluorescence of the reacted AIEgens could be easily visualized under UV-illumination. The detection limit could be as low as 3.4 ppb (for DCP vapors) or 0.2 ppm (for amine vapors) with the minimal detection time of 30 min (for DCP vapors) or 5 min (for amine vapors). This AIE pen could be easily expanded by decoration of different kinds of responsive AIEgens for on-site analysis of various toxic vapors.

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A pyrene-benzthiazolium conjugate portraying aggregation induced emission, a ratiometric detection and live cell visualization of HSO3−

Cited by 51 publications

References 61 publications

Recent Advances in Aggregation-Induced Emission Chemosensors for Anion Sensing

Recent Advances in Aggregation-Induced Emission Chemosensors for Anion Sensing

Photophysical Properties of an Azine-Linked Pyrene–Cinnamaldehyde Hybrid: Evidence of Solvent-Dependent Charge-Transfer-Coupled Excimer Emission

Development of Reaction-Based AIE Handy Pen for Visual Detection of Toxic Vapors

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