An acac-BODIPY dye as a reversible “ON-OFF-ON” fluorescent sensor for Cu2+ and S2- ions based on displacement approach

More, Ankush B.; Mula, Soumyaditya; Thakare, Shrikant; Chakraborty, Saikat; Ray, Alok K.; Sekar, Nagaiyan; Chattopadhyay, Subrata

doi:10.1016/j.jlumin.2017.06.005

Cited by 28 publications

(11 citation statements)

References 69 publications

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“…Therefore, it is of great significance to design a copper ion detection sensor with high selectivity and sensitivity in the field of environment [9,10]. In addition, sulfur ion (S 2− ) is a necessary anion in many physiological processes, such as preventing apoptosis, inflammation, and oxidation [11]. But excessive sulfur ions, which are often discharged from the refinery and leather industry, can damage the nervous system of the human body, and even lead to Alzheimer's disease [12,13].…”

Section: Introductionmentioning

confidence: 99%

Facile and Green Fabrication of Carrageenan-Silver Nanoparticles for Colorimetric Determination of Cu2+ and S2−

et al. 2020

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In the present work, silver nanoparticles (AgNPs) were prepared by a simple and green method using carrageenan as reducing and capping agent. The as-synthesized carrageenan-AgNPs was demonstrated as an effective duel colorimetric sensing for selective and sensitive recognition of Cu2+ and S2−, which could be used to detect these ions with naked eyes. In addition, the possible sensing mechanism was that Cu2+ ions caused serious aggregation of carrageenan-AgNPs, which led to the color change of carrageenan-AgNPs. AgNPs were etched by S2− forming Ag2S, which played an important role in the determination of S2− ions. Furthermore, it has been successfully applied to the determination of Cu2+ and S2− in tap water and lake water, showing its great potential for the analysis of environmental water samples.

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Section: Introductionmentioning

confidence: 99%

Facile and Green Fabrication of Carrageenan-Silver Nanoparticles for Colorimetric Determination of Cu2+ and S2−

et al. 2020

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“…In this regard, several examples of fluorometric as well as colorimetric sensors for copper ion with remarkable changes in their absorption or emission properties have been reported during recent years ,. However, upon binding with Cu 2+ some sensors undergo fluorescence quenching due to the inherent paramagnetic nature of Cu 2+ and this issue is generally considered as a defect in fluorescent Cu 2+ sensing . More interestingly, the non‐fluorescent Cu 2+ complex has potential utility in the selective recognition of anion by the displacement approach through the implication of the Cu‐complex as secondary molecular sensor ,…”

Section: Introductionmentioning

confidence: 99%

“…Once sulfide anion is protonated it becomes even more toxic due to the formation of either HS − or H 2 S . Therefore, sulfide anion detection has become very important for monitoring its toxicity as well as signalling function in biological systems and the exploitation of Cu‐complexes in this domain is highly stimulating ,,…”

Section: Introductionmentioning

confidence: 99%

A Highly Selective “On‐Off‐On” Optical Switch for Sequential Detection of Cu²⁺and S²⁻Ions Based on 2, 6‐Diformyl‐4‐methyl Phenol and Catecholase Activity by Its Copper Complex

2018

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A new highly selective chemosensor for Cu 2 + and S 2 À ions, Ethyl 2-cyano-3-(2-hydroxy-5-methyl-3-(p-tolylimino)methyl) phenyl)acrylate) (HL) based on 2, 6-diformyl-4-methylphenol was designed and synthesized. The ligand exhibited excellent sensitivity towards copper ion by the emission quenching even in the presence of other biologically important metal ions. Once HL combine with Cu 2 + it can display a rapid response and high selectivity toward sulfide anion resulting in off-on sensing via Cu 2 + displacement assay. The signal transduction happen via reversible formation-separation of complex L-Cu and CuS and the complex LÀCu was synthesized by the reaction of HL and Cu 2 + and characterized by single-crystal Xray diffraction and DFT optimization studies. The catecholase like activity for LÀCu complex have been studied by using 3,5di-tertbutylcatechol (3,5-DTBC) as the substrate.[a] Dr.

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“…Based also on Cu 2+ complexes, compound 9 was prepared for detecting S 2− in CH 3 CN:water [17]. In this example, decomplexation was induced by the formation of the corresponding CuS salt (Figure 10).…”

Section: Sensors Based On the Displacement Approachmentioning

confidence: 99%

BODIPY Core as Signaling Unit in Chemosensor Design

Costero¹,

Parra²,

Gil³

et al. 2019

BODIPY Dyes - A Privilege Molecular Scaffold With Tunable Properties

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BODIPY derivatives possess unique photophysical properties and for these reasons, they have been used in numerous fields. Among the different applications, they are used in designing chemosensors that has increased in the last years. Here, we report several strategies and examples for detecting analytes of different characteristics: cations, anions, and hazardous and pollutant neutral molecules using BODIPY core as signaling unit.

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An acac-BODIPY dye as a reversible “ON-OFF-ON” fluorescent sensor for Cu2+ and S2- ions based on displacement approach

Cited by 28 publications

References 69 publications

Facile and Green Fabrication of Carrageenan-Silver Nanoparticles for Colorimetric Determination of Cu2+ and S2−

Facile and Green Fabrication of Carrageenan-Silver Nanoparticles for Colorimetric Determination of Cu2+ and S2−

A Highly Selective “On‐Off‐On” Optical Switch for Sequential Detection of Cu²⁺and S²⁻Ions Based on 2, 6‐Diformyl‐4‐methyl Phenol and Catecholase Activity by Its Copper Complex

BODIPY Core as Signaling Unit in Chemosensor Design

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An acac-BODIPY dye as a reversible “ON-OFF-ON” fluorescent sensor for Cu2+ and S2- ions based on displacement approach

Cited by 28 publications

References 69 publications

Facile and Green Fabrication of Carrageenan-Silver Nanoparticles for Colorimetric Determination of Cu2+ and S2−

Facile and Green Fabrication of Carrageenan-Silver Nanoparticles for Colorimetric Determination of Cu2+ and S2−

A Highly Selective “On‐Off‐On” Optical Switch for Sequential Detection of Cu2+and S2−Ions Based on 2, 6‐Diformyl‐4‐methyl Phenol and Catecholase Activity by Its Copper Complex

BODIPY Core as Signaling Unit in Chemosensor Design

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Product

Resources

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A Highly Selective “On‐Off‐On” Optical Switch for Sequential Detection of Cu²⁺and S²⁻Ions Based on 2, 6‐Diformyl‐4‐methyl Phenol and Catecholase Activity by Its Copper Complex