Overview of the chemosensor ligands used for selective detection of anions and metal ions (Zn2+, Cu2+, Ni2+, Co2+, Fe2+, Hg2+)

Patil, Amit; Salunke‐Gawali, Sunita

doi:10.1016/j.ica.2018.05.026

Cited by 76 publications

(13 citation statements)

References 117 publications

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“…During the past few years, several chemosensors have evolved for the selective qualitative analysis of different metal ions based on metal-ligand coordination as the host-guest interaction principle [7,24]. Our aim in this research work was to develop ligand bearing coordination sites that had a binding ability and selectivity toward specific transition metal ions in aqueous systems.…”

Section: Resultsmentioning

confidence: 99%

“…properties for metal ion sensing with high sensitivity and selectivity [6,7]. Various molecular structures of sensors comprising a crown ether, pyridines, and quinolines have been synthesized for binding with metal ions [7][8][9][10]. Among all the identified organic sensors, Schiff base ligands are one of the chemosensors that have been extensively studied for sensing both cations and anions [6].…”

Section: Preparation Of 1-(2-thiophenylimino)-4-(n-dimethyl)benzenementioning

confidence: 99%

“…This visualization is based on the coordination between organic molecules, having lone pair electrons (acting as donors), and the metals (acting as acceptors). Much effort has been made to design and synthesize organic molecules with colorimetric and fluorescence properties for metal ion sensing with high sensitivity and selectivity [6,7]. Various 2 of 10 molecular structures of sensors comprising a crown ether, pyridines, and quinolines have been synthesized for binding with metal ions [7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

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Colorimetric Detection of Multiple Metal Ions Using Schiff Base 1-(2-Thiophenylimino)-4-(N-dimethyl)benzene

2019

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In this paper, a Schiff base ligand 1-(2-thiophenylimino)-4-(N-dimethyl)benzene (SL1) bearing azomethine (>C=N-) and thiol (-SH) moieties capable of coordinating to metals and forming colored metal complexes was synthesized and examined as a colorimetric chemosensor. The sensing ability toward the metal ions of Cu2+, Cr3+, Fe2+ Ni2+, Co2+, Mg2+, Zn2+, Fe2+, Fe3+, NH4VO3 (V5+), Mn2+, Hg2+, Pb2+, and Al3+ was investigated in a mixture of H2O and dimethylformamide (DMF) solvent using the UV–Visible spectra monitoring method. The synthesized Schiff base ligand showed colorimetric properties with Cr3+, Fe2+, Fe3+, and Hg2+ ions, resulting in a different color change for each metal that could be identified easily with the naked eye. The UV–Vis spectra indicated a significant red shift (~69–288 nm) from the origin after the addition of the ligand to these metal ions, which may be due to ligand-to-metal charge-transfer (LMCT). On applying Job’s plot, it was indicated that the ligand binds to the metal ions in a 2:1 ligand-to-metal molar ratio. SL1 behaves as a bidentate ligand and binds through the N atom of the imine group and the S atom of the thiol group. The results indicate that the SL1 ligand is an appropriate coordination entity and can be developed for use as a chemosensor for the detection of Cr3+, Fe2+, Fe3+, and Hg2+ ions.

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Section: Resultsmentioning

confidence: 99%

Section: Preparation Of 1-(2-thiophenylimino)-4-(n-dimethyl)benzenementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Colorimetric Detection of Multiple Metal Ions Using Schiff Base 1-(2-Thiophenylimino)-4-(N-dimethyl)benzene

2019

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“…Recently, as a result of concern for human health and environmental safety, worldwide attention has been devoted to design and synthesize highly sensitive fluorescent probes for the selective recognition of heavy metal ions. [1][2][3][4][5][6][7] Among the most important natural metal cations, zinc is the second most abundant metal ion that has a large biological spectrum of functions. 8 Abnormal concentration of zinc causes frequent depressed immune function, accustom infections, bullous pustular dermatitis, diarrhea, alopecia, mental disturbances, metal fume fever, adult respiratory distress syndrome.…”

Section: Introductionmentioning

confidence: 99%

A Simple Fluorescent Chemosensor for Detection of Zinc Ions in Some Real Samples and Intracellular Imaging in Living Cells

Aziz

Aboelhasan

Sayed

2020

J. Braz. Chem. Soc.

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A new designed fluorescent chemosensor TYMN ((E)-1-((thiazol-2-ylimino)methyl) naphthalen-2-ol) for highly sensitive and selective tracing of trace amount of Zn 2+ ions in some real samples was synthesized and characterized. The sensor TYMN can detect Zn 2+ ions via fluorescence enhancement with a high selectivity over a wide range of metal ions, especially Cd 2+. The sensor showed large fluorescence enhancement upon complexation with Zn 2+ and simultaneous color change from yellow to orange. The limit of detection was analyzed to be 0.0311 μM with a linear dynamic range 0.1-1.0 μM. The sensor could work in a pH span of 5.0-8.0. Based on the physicochemical and analytical methods like electrospray ionization (ESI)-mass, Job plot, 1 H nuclear magnetic resonance (NMR) and theoretical calculations, the detection mechanism for Zn 2+ was explained based on restriction of internal charge transfer (ICT) mechanism. TYMN sensor was potentially utilized for Zn 2+ ions concentration evaluation in some real samples. Fluorescence microscopy experiments revealed that probe TYMN may have application as a fluorophore to detect the Zn 2+ in living cells.

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“…During the past few years, research on the development of new analytical techniques that can enable the detection of target materials in a simple manner is significantly enhanced. Particularly, development of chemosensors for detecting the cations and anions become a thirsty area of research, because they can eliminate the use of complicated analytical procedures and allows the accurate target detection in a simple manner . Hence several research groups are intensively working on the development of chemosensors.…”

Section: Introductionmentioning

confidence: 99%

A Naked Eye and Turn‐On Fluorescence Detection of Zn²⁺ Ion by Imidazole‐Quinoline‐Based Fluorophore and Its Application in Live‐Cell Imaging

et al. 2020

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A novel quinoline-imidazole hybrid conjugate chromophore, 2-(4,5-diphenyl-1H-imidazol-2-yl)-4-phenylquinoline (DIPQ), is designed, synthesized, characterized using NMR, ESI-MS and ESI-HRMS analyses and explored for its ability in detecting a range of biologically relevant cations. Among the various metal ions, DIPQ responds selectively to the addition of Zn 2 + with a change in color from colorless to pale yellow along with characteristic green fluorescence at 564 nm. Zn 2 + induced absorption and fluorescence changes of DIPQ are not affected by other commonly coexistent metal ions and anions. DIPQ-Zn 2 + binding interactions are thoroughly studied using NMR and MALDI-MS analyses. DIPQ is capable to detect Zn 2 + even at the nano-molar levels with a limit of detection (LOD) and limit of quantification (LOQ) of 2.7 × 10 À 8 M and 8.1 × 10 À 8 M, respectively. Sample matrices have trivial impact on the Zn 2 + detection ability of DIPQ. The quantitative results obtained from the DIPQ method are comparable with the ICP-OES method. Moreover, DIPQ has a wide pH range of operation, exhibited good cell permeability and low toxicity for biological applications. Furthermore, DIPQ is suitable to detect Zn 2 + ions present in biological tissues.

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Overview of the chemosensor ligands used for selective detection of anions and metal ions (Zn2+, Cu2+, Ni2+, Co2+, Fe2+, Hg2+)

Cited by 76 publications

References 117 publications

Colorimetric Detection of Multiple Metal Ions Using Schiff Base 1-(2-Thiophenylimino)-4-(N-dimethyl)benzene

Colorimetric Detection of Multiple Metal Ions Using Schiff Base 1-(2-Thiophenylimino)-4-(N-dimethyl)benzene

A Simple Fluorescent Chemosensor for Detection of Zinc Ions in Some Real Samples and Intracellular Imaging in Living Cells

A Naked Eye and Turn‐On Fluorescence Detection of Zn²⁺ Ion by Imidazole‐Quinoline‐Based Fluorophore and Its Application in Live‐Cell Imaging

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Overview of the chemosensor ligands used for selective detection of anions and metal ions (Zn2+, Cu2+, Ni2+, Co2+, Fe2+, Hg2+)

Cited by 76 publications

References 117 publications

Colorimetric Detection of Multiple Metal Ions Using Schiff Base 1-(2-Thiophenylimino)-4-(N-dimethyl)benzene

Colorimetric Detection of Multiple Metal Ions Using Schiff Base 1-(2-Thiophenylimino)-4-(N-dimethyl)benzene

A Simple Fluorescent Chemosensor for Detection of Zinc Ions in Some Real Samples and Intracellular Imaging in Living Cells

A Naked Eye and Turn‐On Fluorescence Detection of Zn2+ Ion by Imidazole‐Quinoline‐Based Fluorophore and Its Application in Live‐Cell Imaging

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A Naked Eye and Turn‐On Fluorescence Detection of Zn²⁺ Ion by Imidazole‐Quinoline‐Based Fluorophore and Its Application in Live‐Cell Imaging