Anthroneamine based chromofluorogenic probes for Hg2+ detection in aqueous solution

Kumar, Ashwani; Kumar, Subodh

doi:10.1016/j.tetlet.2012.01.134

Cited by 21 publications

(6 citation statements)

References 56 publications

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“…pH plays a vital characteristic on the performance of emission of any synthesized fluorophores . For that reason, the significance of pH on the fluorescence intensity of chemosensor B (20 μM) in the existence and nonexistence of Fe 3+ metal ion (100 μM) was scrutinized within pH value ranges from pH 1 to 12.…”

Section: Resultsmentioning

confidence: 99%

Discriminating Chemosensor for Detection of Fe³⁺ in Aqueous Media by Fluorescence Quenching Methodology

Vanjare

Mahajan

Hong

et al. 2018

Bulletin Korean Chem Soc

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The Schiff base as chemosensor (B) namely 2-((anthracen-1-ylimino) methyl) phenol was designed and synthesized. The spectral properties of chemosensor B were confirmed by using IR, 1 H NMR, 13 C NMR, and LC-MS techniques. The chemosensor B shows a significant fluorescence quenching with incremental addition of Fe 3+ . The present chemosensor B shows unaffected fluorescence response induced by Fe 3+ even in the presence of other competing ions in mixed solvent system. The binding mode and stoichiometry (2:1) between chemosensor B and Fe 3+ were analyzed by recording 1 H NMR and Job's plot respectively. The ground state complexation of chemosensor B and Fe 3+ was confirmed by absorption titration and fluorescence lifetime measurement in the absence and presence of various concentration of Fe 3+ ion to chemosensor B. The lower detection limit for Fe 3+ found to be 0.59 μM with correlation coefficient R 2 = 0.9815. The present chemosensor B successfully applied for quantitative determination of the Fe 3+ ion from ordinary water samples.

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Section: Resultsmentioning

confidence: 99%

Discriminating Chemosensor for Detection of Fe³⁺ in Aqueous Media by Fluorescence Quenching Methodology

Vanjare

Mahajan

Hong

et al. 2018

Bulletin Korean Chem Soc

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“…By mass spectral analyses, the ion peaks were detected at m/z 435. 4 [38][39][40] and imidazole N atoms. Meanwhile, Fe 3＋ is also coordinates with DMSO [41,42] and 4 ClO -(Scheme 2).…”

Section: Resultsmentioning

confidence: 99%

“…The design of fluorescent chemosensors for various metal ions is an important area because of their fundamental role in medical, environmental and biological applications. [1,2] Till now, a number of fluorescent sensors for heavy and transition metal ions, such as, Hg ＋ , [3][4][5][6] Cu 2＋ , [7][8][9][10][11] Zn 2＋ , [12][13][14][15] Pb 2＋ , [16][17][18][19] and Cd 2＋ [20][21][22][23] have been investigated. Surprisingly, the reported Fe 3＋ selective fluorescent sensors are relatively scarce [24][25][26] despite the widespread applications of Fe 3＋ .…”

Section: Introductionmentioning

confidence: 99%

Selective Chemosensor of Fe³⁺ Based on Fluorescence Quenching by 2,2′‐Bisbenzimidazole Derivative in Aqueous Media

et al. 2013

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2,2'-Bisbenzimidazole derivative (L) was designed as a fluorescent chemosensor for Fe 3＋ . This structurally simple chemosensor displays significant fluorescence quenching with increasing concentrations of Fe 3＋ . L exhibited high selectivity and antidisturbance for Fe 3＋ among environmentally relevant metal ions in aqueous media. The method of Job's plot indicated the formation of 1∶2 complex between L and Fe 3＋ , and the possible binding mode of the system was also proposed. In addition, further study demonstrates the detection limit on fluorescence response of the sensor to Fe 3＋ is down to 10 −7 mol•L −1 range. The binding mode was investigated by fluorescence spectra, ESI-MS, IR data, 1 H NMR, 13 C NMR and crystal data.

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“…All reagents and solvents used in the experiments, including propargyl bromide (80% toluene), all metal perchlorates, TBAHSO 4 , DMSO, potassium carbonate, and ethanol were purchased from Aldrich (analytical grade) and were used without further purification. 1-Amino-3H-naphtho[1,2,3-de]quinoline-2,7-dione (compound 3) was synthesized according to a procedure reported previously [78]. All the fluorescence spectra were recorded on a ChronosBH fluorescence lifetime spectrometer.…”

Section: General Chemicals and Materialsmentioning

confidence: 99%

A Chromo-Fluorogenic Naphthoquinolinedione-Based Probe for Dual Detection of Cu2+ and Its Use for Various Water Samples

Kumar

Chae

2022

Molecules

Self Cite

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The presence of an abnormal amount of Cu2+ in the human body causes various health issues. In the current study, we synthesized a new naphthoquinolinedione-based probe (probe 1) to monitor Cu2+ in different water systems, such as tap water, lakes, and drain water. Two triazole units were introduced into the probe via a click reaction to increase the binding affinity to a metal ion. In day-light, probe 1 dissolved in a mixed solvent system (HEPES: EtOH = 1:4) showed a vivid color change from light greenish-yellow to pink in the presence of only Cu2+ among various metal ions. In addition, the green luminescence and fluorescence emission of the probe were effectively bleached out immediately after Cu2+ addition. The limit of detection (LOD) of the probe was 0.5 µM when a ratio-metric method was used for metal ion detection. The fluorescence titration data of the probe with Cu2+ showed a calculated LOD of 41.5 pM. Hence, probe 1 possesses the following dual response toward Cu2+ detection: color change and fluorescence quenching. Probe 1 was also useful for detecting Cu2+ spiked in tap/lake water as well as the cytoplasm of live HeLa cells. The current system was investigated using ultraviolet-visible and fluorescence spectroscopy as well as density functional theory calculations (DFT).

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Anthroneamine based chromofluorogenic probes for Hg2+ detection in aqueous solution

Cited by 21 publications

References 56 publications

Discriminating Chemosensor for Detection of Fe³⁺ in Aqueous Media by Fluorescence Quenching Methodology

Discriminating Chemosensor for Detection of Fe³⁺ in Aqueous Media by Fluorescence Quenching Methodology

Selective Chemosensor of Fe³⁺ Based on Fluorescence Quenching by 2,2′‐Bisbenzimidazole Derivative in Aqueous Media

A Chromo-Fluorogenic Naphthoquinolinedione-Based Probe for Dual Detection of Cu2+ and Its Use for Various Water Samples

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Anthroneamine based chromofluorogenic probes for Hg2+ detection in aqueous solution

Cited by 21 publications

References 56 publications

Discriminating Chemosensor for Detection of Fe3+ in Aqueous Media by Fluorescence Quenching Methodology

Discriminating Chemosensor for Detection of Fe3+ in Aqueous Media by Fluorescence Quenching Methodology

Selective Chemosensor of Fe3+ Based on Fluorescence Quenching by 2,2′‐Bisbenzimidazole Derivative in Aqueous Media

A Chromo-Fluorogenic Naphthoquinolinedione-Based Probe for Dual Detection of Cu2+ and Its Use for Various Water Samples

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About

Discriminating Chemosensor for Detection of Fe³⁺ in Aqueous Media by Fluorescence Quenching Methodology

Discriminating Chemosensor for Detection of Fe³⁺ in Aqueous Media by Fluorescence Quenching Methodology

Selective Chemosensor of Fe³⁺ Based on Fluorescence Quenching by 2,2′‐Bisbenzimidazole Derivative in Aqueous Media