Simultaneous bioimaging recognition of Al3+ and Cu2+ in living-cell, and further detection of F− and S2− by a simple fluorogenic benzimidazole-based chemosensor

Liu, Haiyang; Zhang, Bibo; Tan, Chunyan; Liu, Feng; Cao, Jian; Tan, Ying; Jiang, Yuyang

doi:10.1016/j.talanta.2016.08.061

Cited by 85 publications

(19 citation statements)

References 76 publications

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“…Various metal ions [51,52] were selected to study their sensitivity to HFNs and the results are shown in Figure 6f. We found that the intensity of HFNs is very sensitive to Cu(II) compared with the other metal ions, which is also reported elsewhere [53][54][55]. The fluorescence selectivity was investigated to understand the behavior of HFNs and HFNs dispersed in different cation Ag(I), Cd(II), Cu(II), Ca(II), Cr(III), Mg(II), Ni(II) and Pb(II) solutions.…”

Section: Fluorescence-based Detection Of Cu(ii) Ionssupporting

confidence: 78%

Hairy Fluorescent Nanospheres Based on Polyelectrolyte Brush for Highly Sensitive Determination of Cu(II)

Wang

Chen

et al. 2020

Polymers

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Currently, it is an ongoing challenge to develop fluorescent nanosphere detectors that are uniform, non-toxic, stable and bearing a large number of functional groups on the surface for further applications in a variety of fields. Here, we have synthesized hairy nanospheres (HNs) with different particle sizes and a content range of carboxyl groups from 4 mmol/g to 9 mmol/g. Based on this, hairy fluorescent nanospheres (HFNs) were prepared by the traditional coupling method (TCM) or adsorption-induced coupling method (ACM). By comparison, it was found that high brightness HFNs are fabricated based on HNs with poly (acrylic acid) brushes on the surface via ACM. The fluorescence intensity of hairy fluorescent nanospheres could be controlled by tuning the content of 5-aminofluorescein (5-AF) or the carboxyl groups of HNs easily. The carboxyl content of the HFNs could be as high as 8 mmol/g for further applications. The obtained HFNs are used for the detection of heavy metal ions in environmental pollution. Among various other metal ions, the response to Cu (II) is more obvious. We demonstrated that HFNs can serve as a selective probe and for the separation and determination of Cu(II) ions with a linear range of 0–0.5 μM and a low detection limit of 64 nM.

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Section: Fluorescence-based Detection Of Cu(ii) Ionssupporting

confidence: 78%

Hairy Fluorescent Nanospheres Based on Polyelectrolyte Brush for Highly Sensitive Determination of Cu(II)

Wang

Chen

et al. 2020

Polymers

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“…In recent times, a paradigm drift towards the development of simple molecule based multifunctional chemosensors, potentially capable to selectively target both metal ions as well as small molecules of environmental and biological significance, is witnessed in the field of analytical research. [1,2] These multiple target sensors have many advantages over single ion recognition based traditional chemosensors such as easy synthetic protocols, cost effectiveness, superb efficiency towards multiple targets of interest, easy sample preparation, real time responses, operational simplicity and recoverability. [3][4][5][6][7] Azine based Schiff base molecular systems, which are recognized with easy synthetic protocols, provide ample opportunities to develop push-pull architectures with D-π-A type conjugation through azine linkages in conjunction with excellent chromophoric units.…”

Section: Introductionmentioning

confidence: 99%

Mechanistic Insight into Selective Sensing of Hazardous Hg²⁺ and Explosive Picric Acid by Using a Pyrene‐Azine‐Hydroxyquinoline Framework in Differential Media

Mondal

Biswas

et al. 2020

ChemistrySelect

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A pyrene-hydroxyquinoline tethered ingeniously designed and developed azine based Schiff base luminophoric system, 2-((Z)-((E)-(pyren-1-ylmethylene)hydrazono)methyl)quinolin-8-ol (PHQ) has been explored as a selective 'TURN ON' chromofluorogenic sensor for hazardous Hg 2 + ions in ethanol/H 2 O (9 : 1,v/v) medium with detection limit of 0.22 μM and binding constant of 1.09 x 10 3 M À 1. The detail scrutiny of mechanism of interaction between PHQ and Hg 2 + is rationalized through various techniques like 1 H NMR titration, FT-IR, mass spectral analysis, theoretical computations, Job's plot, dynamic light scattering (DLS), transmission electron microscopy (TEM), time resolved excited state decay dynamics and fluorescence reversibility studies, which concretely declare a synergistic effect of supramolecular aggregation induced enhanced emission and deactivation of photo-induced electron transfer (PET) processes. On the other hand, a 'TURN OFF' luminescence feature of highly fluorescent PHQ hydrosol is utilized for the selective screening of powerful explosive picric acid (PA) in aqueous medium and mechanism is deciphered by means of steady state, time-resolved emission as well as computational studies which altogether reflect a combined effect of PET and ground state complexation between probe and PA. The commendable detection limit of 55 nM and Stern-Volmer quenching constant of 1.48 x 10 4 M À 1 with high quenching efficiency of 84% increases the pertinency of the nano-probe.

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“…For instance, anthracene, 10,11 anthraquinone, 12,13 calixpyrrole, 14,15 dipyrrolylquinoxaline, 16 and other chromophore molecules have been used as chromogenic units, displaying various colors and/or uorescence. In addition, uoride-binding motifs such as urea, 17,18 thiourea, 19,20 hydrazide, 21,22 indole, 23,24 and imidazole 23,25 groups have been adopted for selective recognition of uoride. The receptor groups mostly recognize uoride by Hbonding or deprotonation of the -NH moiety.…”

Section: Introductionmentioning

confidence: 99%

A hydrazide organogelator for fluoride sensing with hyperchromicity and gel-to-sol transition

Park

Lee

et al. 2020

RSC Adv.

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Simultaneous bioimaging recognition of Al3+ and Cu2+ in living-cell, and further detection of F− and S2− by a simple fluorogenic benzimidazole-based chemosensor

Cited by 85 publications

References 76 publications

Hairy Fluorescent Nanospheres Based on Polyelectrolyte Brush for Highly Sensitive Determination of Cu(II)

Hairy Fluorescent Nanospheres Based on Polyelectrolyte Brush for Highly Sensitive Determination of Cu(II)

Mechanistic Insight into Selective Sensing of Hazardous Hg²⁺ and Explosive Picric Acid by Using a Pyrene‐Azine‐Hydroxyquinoline Framework in Differential Media

A hydrazide organogelator for fluoride sensing with hyperchromicity and gel-to-sol transition

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Simultaneous bioimaging recognition of Al3+ and Cu2+ in living-cell, and further detection of F− and S2− by a simple fluorogenic benzimidazole-based chemosensor

Cited by 85 publications

References 76 publications

Hairy Fluorescent Nanospheres Based on Polyelectrolyte Brush for Highly Sensitive Determination of Cu(II)

Hairy Fluorescent Nanospheres Based on Polyelectrolyte Brush for Highly Sensitive Determination of Cu(II)

Mechanistic Insight into Selective Sensing of Hazardous Hg2+ and Explosive Picric Acid by Using a Pyrene‐Azine‐Hydroxyquinoline Framework in Differential Media

A hydrazide organogelator for fluoride sensing with hyperchromicity and gel-to-sol transition

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Product

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Mechanistic Insight into Selective Sensing of Hazardous Hg²⁺ and Explosive Picric Acid by Using a Pyrene‐Azine‐Hydroxyquinoline Framework in Differential Media