A cyanobiphenyl-based ratiometric fluorescent sensor for highly selective and sensitive detection of Zn2+

Bie, Fusheng; Cao, Han; Yan, Peng; Cui, Haizhu; Shi, Yijun; Ma, Jie; Liu, Xuejing; Han, Ying

doi:10.1016/j.ica.2020.119652

Cited by 13 publications

(3 citation statements)

References 61 publications

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“…The reason for the observed large Stokes shifts was intra-molecular charge-transfer excitation of an electron from the HOMO to the LUMO of the chromophore, accompanied by elongation of the bond and considerable solvent reorganization due to hydrogen bonding to the solvent. The chemosensor CM1 showed a prominent Stokes shift, and it can be used for practical application for the detection of Cd 2+ [32].…”

Section: Stokes Shiftmentioning

confidence: 99%

Rapid Detection of Cd2+ Ions in the Aqueous Medium Using a Highly Sensitive and Selective Turn-On Fluorescent Chemosensor

Sadia

Khan

et al. 2023

Molecules

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Herein, a novel optical chemosensor, (CM1 = 2, 6-di((E)-benzylidene)-4-methylcyclohexan-1-one), was designed/synthesized and characterized by 1H-NMR and FT-IR spectroscopy. The experimental observations indicated that CM1 is an efficient and selective chemosensor towards Cd2+, even in the presence of other metal ions, such as Mn2+, Cu2+, Co2+, Ce3+, K+, Hg2+,, and Zn2+ in the aqueous medium. The newly synthesized chemosensor, CM1, showed a significant change in the fluorescence emission spectrum upon coordination with Cd2+. The formation of the Cd2+ complex with CM1 was confirmed from the fluorometric response. The 1:2 combination of Cd2+ with CM1 was found optimum for the desired optical properties, which was confirmed through fluorescent titration, Job’s plot, and DFT calculation. Moreover, CM1 showed high sensitivity towards Cd2+ with a very low detection limit (19.25 nM). Additionally, the CM1 was recovered and recycled by the addition of EDTA solution that combines with Cd2+ ion and, hence, frees up the chemosensor.

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Section: Stokes Shiftmentioning

confidence: 99%

Rapid Detection of Cd2+ Ions in the Aqueous Medium Using a Highly Sensitive and Selective Turn-On Fluorescent Chemosensor

Sadia

Khan

et al. 2023

Molecules

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“…Therefore, many heavy metals such as Zn2+ ion need to be detected in a sensitive and selective way. In recent years, many different molecules have been studied in the literature for the optical detection of Zn 2+ ion by using benzothiazole [12,13], antracene [14], benzidine [15], triphenylamine [16,17], cyanobiphenyl [18], benzotriazole [19], tetrahydroquinazole [20], dinitrophenyl [21], thiophene [22], rhodanine [23], benzoimidazole [24], phenanthroline [25], naphthalene [26], 1,10-phenanthroline [27], BINOL [28] and sulphonamide [29]. Among these molecules, calixarenes play an important role.…”

Section: Introductionmentioning

confidence: 99%

Phenylethylamine Derivative of Calix[4]arene Schiff Base for Fluorometric Detection of Zinc Ion

ÖZÇELİK,

NG'ANDU,

TABAKCI

et al. 2023

KONJES

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As a Zn2+ fluorescent probe, we have designed and synthesized a new type of calixarene Schiff-base ligand (L) possessing a 1-phenylethylamine group as the fluorophore and the receptor. As only Zn2+ caused a significant increase in fluorescence emission intensity at 480 nm and the limit of detection (LOD) reached 4.8 x 10-7 M, the synthesized fluorescent probe L demonstrated high selectivity and sensitivity towards Zn2+ compared to other metal ions. In addition, the formation of a 1:1 complex between probe L and Zn2+ was determined. As a consequence, it was determined that probe L can be utilized for the detection and monitoring of Zn2+ in the environment.

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“…1 Among heavy metal ions, Zn 2+ and Cu 2+ are widely considered as pollutants, as well as the essential trace elements in biological systems. [2][3][4] Therefore, developing a straightforward and effective approach to sensitively detect multiple heavy metal ions is vital for human health and environmental monitoring. In the last two decades, many traditional analytical techniques, such as electrochemistry, capillary electrophoresis, inductively coupled plasmamass spectrometry and atomic emission spectrometry, have been improved.…”

Section: Introductionmentioning

confidence: 99%

Thiocarbazone‐appended coumarin: An easily accessible ratiometric fluorescent chemosensor for multianalyte (Zn²⁺ and Cu²⁺) systems

Bian

et al. 2021

Coloration Technology

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A simple thiocarbazone-appended coumarin derivative 1 with high selectivity as a ratiometric fluorescence sensor towards Cu 2+ and Zn 2+ in a semi-aqueous solution was synthesised and characterised. Upon the addition of Cu 2+ and Zn 2+ , the emission of 1 solution undergoes a blue and red shift to 480 and 545 nm according to the intense blue and yellow colour under a 365-nm ultraviolet lamp, respectively. Binding was confirmed by ultraviolet-visible absorption analysis, fluorescence measurement, mass spectrometry, proton nuclear magnetic resonance, Fourier Transform-infrared spectroscopy and density functional theory calculation. The results show that 1 coordinated with Cu 2+ and Zn 2+ in different modes, resulting in different ratiometric fluorescence responses. The detection limits of the sensor 1 for Cu 2+ and Zn 2+ were 100.8 and 11.5 nM, respectively. The association constants (K a ) of Cu 2+ and Zn 2+ with 1 were determined to be 5.59 × 10 4 and 5.08 × 10 4 M −1 , respectively. Fluorescent microscopy experiments demonstrated that probe 1 has the potential to be used to monitor Zn 2+ and Cu 2+ in living cells.

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A cyanobiphenyl-based ratiometric fluorescent sensor for highly selective and sensitive detection of Zn2+

Cited by 13 publications

References 61 publications

Rapid Detection of Cd2+ Ions in the Aqueous Medium Using a Highly Sensitive and Selective Turn-On Fluorescent Chemosensor

Rapid Detection of Cd2+ Ions in the Aqueous Medium Using a Highly Sensitive and Selective Turn-On Fluorescent Chemosensor

Phenylethylamine Derivative of Calix[4]arene Schiff Base for Fluorometric Detection of Zinc Ion

Thiocarbazone‐appended coumarin: An easily accessible ratiometric fluorescent chemosensor for multianalyte (Zn²⁺ and Cu²⁺) systems

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A cyanobiphenyl-based ratiometric fluorescent sensor for highly selective and sensitive detection of Zn2+

Cited by 13 publications

References 61 publications

Rapid Detection of Cd2+ Ions in the Aqueous Medium Using a Highly Sensitive and Selective Turn-On Fluorescent Chemosensor

Rapid Detection of Cd2+ Ions in the Aqueous Medium Using a Highly Sensitive and Selective Turn-On Fluorescent Chemosensor

Phenylethylamine Derivative of Calix[4]arene Schiff Base for Fluorometric Detection of Zinc Ion

Thiocarbazone‐appended coumarin: An easily accessible ratiometric fluorescent chemosensor for multianalyte (Zn2+ and Cu2+) systems

Contact Info

Product

Resources

About

Thiocarbazone‐appended coumarin: An easily accessible ratiometric fluorescent chemosensor for multianalyte (Zn²⁺ and Cu²⁺) systems