Development of highly selective chemosensor for chomium(III) estimation in aqueous environment

Raju, V.S.; Kumar, Rajender; Kumar, S. K. Ashok; Yadamari, Tharakeswar; Sahoo, Suban K.

doi:10.1016/j.inoche.2019.01.011

Cited by 13 publications

(5 citation statements)

References 43 publications

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“…All chemical reagents were commercially obtained. 1 H and 13 C NMR data were recorded on a Varian spectrometer. Absorption and fluorescence spectra were recorded by using a Perkin Elmer spectrometer (Lambda 25 UV-Vis and LS45).…”

Section: Materials and Equipmentmentioning

confidence: 99%

“…The development of chemosensors for detecting a variety of metal ions has attracted great attention owing to their versatile applicability in pathological, biological, and industrial environments. [1][2][3] Among various analytical methods, colorimetric and fluorescent assays are strongly preferred as optical methods, because they offer versatile advantages like fast response, and high selectivity and sensitivity. [4][5][6][7][8] Therefore, a wide range of colorimetric and fluorescent sensors have been reported for detecting diverse metal ions.…”

Section: Introductionmentioning

confidence: 99%

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A Heterocyclic-based Bifunctional Sensor for Detecting Cobalt and Zinc Ion

Lee

Kim

2020

ANAL. SCI.

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A new bifunctional chemosensor HBP ((E)-2-(2-((5-bromopyridin-2-yl)methylene)hydrazinyl) quinoline) based on heterocyclic compounds was designed and studied. The HBP showed successful detecting ability toward cobalt ion with a UV-visible red-shift and a color change of colorless to pink. Moreover, toward zinc ion, the HBP showed an obvious fluorescence turn-on response. The binding ratio of the HBP to cobalt and zinc was a 2 to 1 for both ions. The detection limits were found to be 10 nM for Co 2+ and 18 nM for Zn 2+ . Based on UV-vis and fluorescent spectral variations, Job plots, ESI-MS, FT-IR and calculations, the binding mechanisms of the HBP toward cobalt and zinc ions were proposed.

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Section: Materials and Equipmentmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A Heterocyclic-based Bifunctional Sensor for Detecting Cobalt and Zinc Ion

Lee

Kim

2020

ANAL. SCI.

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“…Thus, the selective and sensitive detection of Cr 3+ ions in environmental and biological samples is required [18,19]. Although many chemical sensors for Cr 3+ have been designed, most of them are unsuccessful in detecting Cr 3+ ions in an aqueous medium, making them unsuitable for practical application [20][21][22][23][24][25][26][27][28][29].…”

Section: Introductionmentioning

confidence: 99%

“…18,19 Although many chemical sensors for Cr 3+ have been designed, most of them are unsuccessful in detecting Cr 3+ ions in an aqueous medium, making them unsuitable for practical applications. [20][21][22][23][24][25][26][27][28][29] Therefore, it is essential to design new water-friendly chemical sensors for the sensitive detection of Cr 3+ .…”

Section: Introductionmentioning

confidence: 99%

An ESIPT-based fluorescent probe for the detection of multiple analytes and a facile approach to discriminate between arsenate and pyrophosphate in water

et al. 2022

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“…It responds to the particular analyte by converting the chemical stimuli into a signal that can be measured or recorded . In chemosensors, nanoparticles capped by different agents (e.g., citrate, 1,4-dithiothreitol, and thymine derivative) or molecules would present the aggregation and disaggregation or the chelation effect in the presence of a particular analyte, resulting in the color or fluorescence or UV–vis change. ,− Currently, chemosensors based on various innovative nanomaterials provide an alternative for Cr(VI) detection; e.g., a Zr 4+ MOF was applied to selective sensing of Cr(VI) with a detection limit of 0.004 mg L –1 . In a recent study, it was found that gallic acid-capped gold nanoparticles could be applied for colorimetric detection of Cr(VI) via the aggregation-induced color change, with the limits of detection (LODs) being 2 μM by eye vision and 0.1 μM by UV–vis spectroscopy.…”

mentioning

confidence: 99%

Ultrasensitive Colorimetric Chromium Chemosensor Based on Dye Color Switching under the Cr(VI)-Stimulated Au NPs Catalytic Activity

et al. 2019

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In view of the high toxicity of Cr(VI), simple and rapid on-site analytical approaches are in high demand for environment monitoring. Herein, an innovative chemosensor is developed for on-site sensitive detection of Cr(VI) in minutes by the naked eye. The chemosensor consists of gallic acid-capped gold nanoparticles (GA-Au NPs), methylene blue (MB), and NaBH 4 . In the presence of Cr(VI) ions, the reduction of MB by NaBH 4 is able to greatly accelerate due to the Cr(VI)-stimulated catalytic activity of GA-Au NPs, resulting in a color switching of MB from blue to colorless for the quantitative detection of Cr(VI). The chemosensor in solution exhibits excellent selectivity and ultrahigh sensitivity to Cr(VI), with the detection limits of 0.05 nM by UV−vis spectroscopy and 0.1 nM by the naked eye. Similarly, a paper-based chemosensor is obtained by immobilization of GA-Au NPs and MB onto a piece of filter paper, offering a more convenient approach for rapid on-site detection of Cr(VI). In addition, H 2 O 2 as an oxidizing agent is employed to convert Cr(III) into Cr(VI), thus achieving speciation analysis of Cr. The applicability of a chemosensor is also validated by the detection of Cr speciation in water samples with satisfactory recoveries.

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Development of highly selective chemosensor for chomium(III) estimation in aqueous environment

Cited by 13 publications

References 43 publications

A Heterocyclic-based Bifunctional Sensor for Detecting Cobalt and Zinc Ion

A Heterocyclic-based Bifunctional Sensor for Detecting Cobalt and Zinc Ion

An ESIPT-based fluorescent probe for the detection of multiple analytes and a facile approach to discriminate between arsenate and pyrophosphate in water

Ultrasensitive Colorimetric Chromium Chemosensor Based on Dye Color Switching under the Cr(VI)-Stimulated Au NPs Catalytic Activity

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