A fluorescent sensor based on bicarboxamidoquinoline for highly selective relay recognition of Zn2+ and citrate with ratiometric response

Tian, Xuhua; Guo, Xiangfeng; Jia, Lei; Yang, Rui; Cao, Guangzhou; Liu, Chaoyue

doi:10.1016/j.snb.2015.07.047

Cited by 42 publications

(7 citation statements)

References 33 publications

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“…In addition, the detection limits (LOD) of QS towards Zn 2+ was estimated for 2.70 × 10 −8 M based on the definition by 3δ/slope (Figure S5), which met the limit for drinking water according to the WHO standard (46 μM) and pointed to the high detection sensitivity compared with other fluorescent probes. The fluorescence emission changes could be explained that probe QS combined with Zn 2+ reinforced the intramolecular charge transfer (ICT), resulting in red shift of the spectrum, the formation of a rigid structure of the molecule, inhibiting the non‐radiative transition caused by C=N isomerization and the CHEF (chelation enhanced fluorescence effect) process, so that the fluorescence was enhanced.…”

Section: Resultsmentioning

confidence: 99%

An aminoquinoline based fluorescent probe for sequential detection of Znic (II) and inorganic phosphate and application in living cell imaging

Chang

Bai

et al. 2019

Applied Organom Chemis

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A novel fluorescent probe 5‐(diethylamino)‐2‐(((2‐(hydroxymethyl)quinolin‐8‐yl)imino)methyl)phenol (QS) was synthesized by condensation reaction of 8‐aminoquinoline derivative and 4‐(diethylamino)salicylaldehyde. It was found that the probe QS was capable of high selectivity and sensitivity about specific color and fluorescence changes towards Zn2+ ion in EtOH‐H2O (v/v = 4/1, 0.01 M, Tris–HCl buffer, pH = 7.30) solution. The interaction of QS with Zn2+ ion illustrated a “turn‐on” fluorescence response at 550 nm (λex: 458 nm), moreover, after the subsequent addition of inorganic phosphate (Pi) into the solution above, a “turn‐off” fluorescence response was observed. The sensing ability of the probe QS towards Zn2+ was confirmed by fluorescence titration, UV–Vis titration and HRMS analysis. Besides, the intracellular sensing behavior of QS with Zn2+ and Pi were captured in living PC12 cells. The limit of detection (LOD) for Zn2+ and Pi sensing was found to be 0.03 μM and 0.08 μM, respectively.

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Section: Resultsmentioning

confidence: 99%

An aminoquinoline based fluorescent probe for sequential detection of Znic (II) and inorganic phosphate and application in living cell imaging

Chang

Bai

et al. 2019

Applied Organom Chemis

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“…To verify the practical applicability of probe 1, the determination of Cu 2+ and Zn 2+ in tap water and lake water (obtained from Xinyue Lake, Henan Polytechnic University) was evaluated using the standard addition method. 52 Briefly, the Cu 2+ and Zn 2+ spiked water sample (0.2 mL) was mixed with 1.8 mL of DMF, then 20 µl of the DMF solution of the probe (1 mM) was added and the absorption spectra were recorded. The Cu 2+ and Zn 2+ concentrations were calculated from the equation shown in Figures 2 and 3.…”

Section: Detection Of Cu 2+ and Zn 2+ In Water Samplesmentioning

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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“…Tian et al . have reported a new sensor 47 based on bis carboxamidoquinoline for sequential recognition of Zn 2+ and citrate with ratiometric behavior was established ( Scheme ).…”

Section: Introductionmentioning

confidence: 99%

A Critical Review on Colorimetric and Fluorescent Probes for the Sensing of Analytes via Relay Recognition from the year 2012–17

2018

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Designing an effective sensor molecule for the selective detection of analyte with dual sensitivity is an innovative approach and is expected to offer huge biological and environmental benefits. Contrary to other sensing process, the reversible recognition of two different analytes while varying the binding sites and signaling subunits is entirely a new concept as the metal ion present in the ensemble can be easily displaced in the presence of ionic or neutral analytes. A reversible strategy can also be employed in the simultaneous recognition and identification of two different analytes with the aid of highly selective and sensitive chemosensors. This review gives an overview of the recent inventions (from 2012 to 2017) in the field of colorimetric and fluorescent receptors towards the detection of two analytes via a relay recognition process. A special emphasis is placed on different mechanisms associated with the sensing process assisted by fluorescence induced receptors which will help to design an effective sensor system for the selective detection of anions or amino acids or metal ions.

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A fluorescent sensor based on bicarboxamidoquinoline for highly selective relay recognition of Zn2+ and citrate with ratiometric response

Cited by 42 publications

References 33 publications

An aminoquinoline based fluorescent probe for sequential detection of Znic (II) and inorganic phosphate and application in living cell imaging

An aminoquinoline based fluorescent probe for sequential detection of Znic (II) and inorganic phosphate and application in living cell imaging

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

A Critical Review on Colorimetric and Fluorescent Probes for the Sensing of Analytes via Relay Recognition from the year 2012–17

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A fluorescent sensor based on bicarboxamidoquinoline for highly selective relay recognition of Zn2+ and citrate with ratiometric response

Cited by 42 publications

References 33 publications

An aminoquinoline based fluorescent probe for sequential detection of Znic (II) and inorganic phosphate and application in living cell imaging

An aminoquinoline based fluorescent probe for sequential detection of Znic (II) and inorganic phosphate and application in living cell imaging

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

A Critical Review on Colorimetric and Fluorescent Probes for the Sensing of Analytes via Relay Recognition from the year 2012–17

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