Studies on UV–vis and fluorescence changements in Co2+ and Cu2+ recognition by a new benzimidazole–benzothiadiazole derivative

Çimen, Oğuzhan; Dinçalp, Haluk; Varlıklı, Canan

doi:10.1016/j.snb.2014.12.056

Cited by 31 publications

(14 citation statements)

References 63 publications

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“…Indeed, discovery and design of new probing agent/sensing molecule is now a very active area of research with hundreds of reports each year. Because of several advantages such as fast response, higher selectivity and sensitivity, portability etc methods based on optical chemosensors (colorimetric/fluorescence) are particularly mentionable in this regard [21][22][23].…”

Section: Introductionmentioning

confidence: 99%

An easily accessible optical chemosensor for Cu2+ based on novel imidazoazine framework, its performance characteristics and potential applications

Kumawat

Kumar

Bhatt

et al. 2017

Sensors and Actuators B: Chemical

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Despite the fact that a large number of chemical sensors for Cu 2+ have been proposed by different groups in recent past, most of them fall into very few classes of molecular framework with similar utilities and limitations. In order to broaden the scope and to overcome the limitation of present day chemical sensors, design, synthesis and testing of molecular systems based on novel fluoro/chromophore is a research goal of significant interest. In the present report, two novel furan-2-yl substituted imidazoazine based optic chemosensors (IA-1 and IA-2) for Cu 2+ have been disclosed for the first time. Proposed sensors were found to have high association constants (10 4 M −1), acceptable detection limits (10 −7 M), high selectivity and reversibility/reusability. Different aspects of this sensing phenomenon were studied using fluorescence spectroscopy and NMR based titrations. Designed probe have shown potential applications in the area of sample monitoring, photo-printing and membrane sensing.

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Section: Introductionmentioning

confidence: 99%

An easily accessible optical chemosensor for Cu2+ based on novel imidazoazine framework, its performance characteristics and potential applications

Kumawat

Kumar

Bhatt

et al. 2017

Sensors and Actuators B: Chemical

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“…Copper (II) ion, being the third adequate element in the human body among the essential metals following iron and zinc, plays crucial roles in many fundamental physiological processes in organisms ranging from bacteria to mammals . Copper ions also catalyze the formation of reactive oxygen species (ROS) that can damage lipids, nucleic acids, and proteins .…”

Section: Introductionmentioning

confidence: 99%

“…Designing heterocycle‐based fluorescent sensors that is , rhodamine based, benzimidazole based, anthracene based, biphenyl based, dipyrromethene (BODIPY), calix[4]arene based, chromenone based, cyclodextrin based, indene‐1,3‐dione based, phenylenediamine based, thiazole based, carbazole based, ferrocene based, and pyrrole based, is an interesting strategy for probing a minute copper level in the sample. Fluorescent probes made up of organic materials for the heavy metal ion detection attracted widespread interest for environmental detection of contaminants.…”

Section: Introductionmentioning

confidence: 99%

Chromogenic and fluorogenic detection of copper ions in the solution and intracellular media

Hanif¹,

Rafiq

Saleem

et al. 2018

J Chinese Chemical Soc

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The development of a fluorescent sensor for the trace detection of the metallic contamination in the ecosystem and biological media have been a demand to reduce the health risk and environmental protection. Herein, we report the synthesis of 2-formyl-5-picolinyl-substituted rhodamine B derivative through Schiff base formation for the trace detection of the copper ions in the aqueous organic media as well as inside the live cells via bioimaging experiments. The ligand was successfully employed to detect the minute copper level ratiometrically through the chromogenic and fluorogenic response. The detection limit of the sensor was found to be 0.54 × 10 −9 mol/L using 3 σ/slope relations. The reversible behavior of the ligand copper complex was determined using sulfide ions that regenerate the entire native properties of the ligands by snatching copper from the complex. The bioimaging experimental results represent the efficient membrane permeability of ligands with the minimum level of toxicity in the measured range found by the MTT assay. The appearance of bright red fluorescence from the BHK-21 (hamster kidney fibroblast) cells upon treatment of the ligand incubated cells with the copper ions represents the utility of the proposed sensor for the copper detection probe in the intracellular media.

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“…Some of the resultant molecules have light-emitting properties and can be used as active materials in many elds, including heavy metal ion assay, 14,15 biosensors and orescence imaging probes. [18][19][20] Pei jian group prepared a series of D-A-D type oligomers taking BTD as the acceptor and oligo(thienylene vinylene)s with distinct lengths as the donor unit, which showed the broad absorption bands between 300-800 nm, and their emission bands were centered at approximately 650 nm. 21 Sanjio S. Zade et al reported three BTD derivatives with the D-A-D conguration and phenyl, thiophene and selenophene as the donor units.…”

Section: Introductionmentioning

confidence: 99%

Effects of the acceptor pattern and substitution position on the properties of N-phenyl-carbazolyl based donor–acceptor–donor molecules

et al. 2017

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Studies on UV–vis and fluorescence changements in Co2+ and Cu2+ recognition by a new benzimidazole–benzothiadiazole derivative

Cited by 31 publications

References 63 publications

An easily accessible optical chemosensor for Cu2+ based on novel imidazoazine framework, its performance characteristics and potential applications

An easily accessible optical chemosensor for Cu2+ based on novel imidazoazine framework, its performance characteristics and potential applications

Chromogenic and fluorogenic detection of copper ions in the solution and intracellular media

Effects of the acceptor pattern and substitution position on the properties of N-phenyl-carbazolyl based donor–acceptor–donor molecules

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