Highly selective colorimetric fluorescence sensor for Cu2+: cation-induced ‘switching on’ of fluorescence due to excited state internal charge transfer in the red/near-infrared region of emission spectra

Goswami, Shyamaprosad; Sen, Debabrata; Das, Nirmal K.; Hazra, Giridhari

doi:10.1016/j.tetlet.2010.08.048

Cited by 73 publications

(23 citation statements)

References 48 publications

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“…Recently, special attention has been devoted to tailored monomeric 1,8-naphthalimide systems for the determination of cations [12][13][14][15][16], and anions [17][18][19] in aqueous and no aqueous media. A new strategy in the sensors design is to use dendritic and branched molecules because of their properties deriving from the well-defined, tridimensional structure [20].…”

Section: Introductionmentioning

confidence: 99%

Synthesis and spectral characterization of a new blue fluorescent tripod for detecting metal cations and protons

Staneva

Makki

Sobahi

et al. 2015

Journal of Luminescence

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Section: Introductionmentioning

confidence: 99%

Synthesis and spectral characterization of a new blue fluorescent tripod for detecting metal cations and protons

Staneva

Makki

Sobahi

et al. 2015

Journal of Luminescence

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“…The fluorescence quenching by the copper ion was due to the complexation of the copper toward the ligand which was further confirmed by the NMR and mass spectrometric analysis. Goswami et al 96 reported the 1,8-naphthalimide-based colorimetric fluorescence sensor 18 (Fig. Fig.…”

Section: Naphthalimide Based Cu 2+ Sensormentioning

confidence: 99%

Optical sensor: a promising strategy for environmental and biomedical monitoring of ionic species

2015

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There is fast growing research on designing and improving the metal recognition methodologies in the ecosystems and biological media. The fluorescent based techniques proved a mile stones for non-invasive metal sensation and quantification in the multichannel environment. Metals as the natural components of Earth's crust are generally present in trace concentrations in the environmental samples where the humic substances have complexation affinity toward them. Iron, zinc and copper are the 1 st , 2 nd and 3 rd adequate elements indispensable to the body in trace playing the crucial roles in many biological processes. However, the unregulated amounts either as excess or deficient may exacerbate deterioration to the vital organs and triggered the progression of complications. Beside these three essential elements, mercury is widely considered to be one of the most hazardous pollutants and highly dangerous elements due to its recognized accumulative and toxic characters in the environment and the ecosystem. In the current scenario, we have tried to summarize the maximum amount of recently developed fluorescent signaling materials for the Cu 2+ , Fe 2+ / Fe 3+ , Zn 2+ and Hg 2+ . The spectral shifting in the molecules on metal chelation, mode of complexation and stoichiometries of resulting adducts have been discussed in detail. Furthermore, the molecules which have been reported as intracellular metal detector via bioimaging are specifically highlighted that might be useful for the design and development of cell viable and membrane permeable molecular probes in the future perspective.

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“…Copper, as the plentiful element in body after iron and zinc, is indispensable in numerous physiological metabolisms of organisms . It serves as a vital cofactor by forming active site in many metalloenzymes, e.g., cytochrome c oxidase .…”

Section: Introductionmentioning

confidence: 99%

Colorimetric Detection of Co²⁺, Cu²⁺, and Zn²⁺ by a Multifunctional Chemosensor in Aqueous Solution

Jang

Chae

Jung

et al. 2019

Bulletin Korean Chem Soc

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A novel multifunctional colorimetric sensor HMBC ((E)‐3‐((2‐hydroxy‐3‐methoxybenzylidene)amino)benzofuran‐2‐carboxamide), based on 3‐aminobenzofuran‐2‐carboxamide and 2‐hydroxyl‐3‐methoxylbenzaldehyde, was designed and synthesized. The chemosensor HMBC could sense Co2+, Cu2+, and Zn2+ by color changes from colorless to yellow. Limits of detection (0.38, 0.41, and 1.02 μM) of HMBC for Co2+, Cu2+, and Zn2+ were much lower than the New Jersey Department of Environmental Protection (NJDEP) standard (1.70 μM) for Co2+ and the WHO guidelines (31.5 μM and 76 μM) for Cu2+ and Zn2+. Significantly, HMBC could be applied for the quantification of Co2+, Cu2+, and Zn2+ in real samples. The sensing process of HMBC for Co2+, Cu2+, and Zn2+ was well demonstrated by 1H NMR and UV–Visible titrations, Job plots, theoretical calculations, and ESI‐mass spectroscopy.

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Highly selective colorimetric fluorescence sensor for Cu2+: cation-induced ‘switching on’ of fluorescence due to excited state internal charge transfer in the red/near-infrared region of emission spectra

Cited by 73 publications

References 48 publications

Synthesis and spectral characterization of a new blue fluorescent tripod for detecting metal cations and protons

Synthesis and spectral characterization of a new blue fluorescent tripod for detecting metal cations and protons

Optical sensor: a promising strategy for environmental and biomedical monitoring of ionic species

Colorimetric Detection of Co²⁺, Cu²⁺, and Zn²⁺ by a Multifunctional Chemosensor in Aqueous Solution

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Highly selective colorimetric fluorescence sensor for Cu2+: cation-induced ‘switching on’ of fluorescence due to excited state internal charge transfer in the red/near-infrared region of emission spectra

Cited by 73 publications

References 48 publications

Synthesis and spectral characterization of a new blue fluorescent tripod for detecting metal cations and protons

Synthesis and spectral characterization of a new blue fluorescent tripod for detecting metal cations and protons

Optical sensor: a promising strategy for environmental and biomedical monitoring of ionic species

Colorimetric Detection of Co2+, Cu2+, and Zn2+ by a Multifunctional Chemosensor in Aqueous Solution

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Product

Resources

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Colorimetric Detection of Co²⁺, Cu²⁺, and Zn²⁺ by a Multifunctional Chemosensor in Aqueous Solution