A Pyrazole‐Based Highly Selective Colorimetric Chemosensor for Hg<sup>2+</sup> Ion in Semi‐Aqueous Medium

Karuppusamy, P.; Senthilvelan, J.; Vijayakumar, V.; Sarveswari, S.

doi:10.1002/slct.201903109

Cited by 14 publications

(2 citation statements)

References 53 publications

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“…The absorption band of 88 at 447 nm was red-shifted to 519 nm with a noticeable color change from yellow to pink upon complexation with Hg 2+ in 2:1 stoichiometry. Sensor 88 showed LOD of 4.73 × 10 −7 M, and was applied successfully to quantify Hg 2+ in various environmental samples [ 113 ]. In another work, the azo dye based chromogenic sensor 89 ( Figure 28 ) was studied for selective detection of Hg 2+ in DMSO-H 2 O (4:1 v / v ) medium.…”

Section: Chromo-fluorogenic Chemosensorsmentioning

confidence: 99%

Mercury Toxicity and Detection Using Chromo-Fluorogenic Chemosensors

2021

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Mercury (Hg), this non-essential heavy metal released from both industrial and natural sources entered into living bodies, and cause grievous detrimental effects to the human health and ecosystem. The monitoring of Hg2+ excessive accumulation can be beneficial to fight against the risk associated with mercury toxicity to living systems. Therefore, there is an emergent need of novel and facile analytical approaches for the monitoring of mercury levels in various environmental, industrial, and biological samples. The chromo-fluorogenic chemosensors possess the attractive analytical parameters of low-cost, enhanced detection ability with high sensitivity, simplicity, rapid on-site monitoring ability, etc. This review was narrated to summarize the mercuric ion selective chromo-fluorogenic chemosensors reported in the year 2020. The design of sensors, mechanisms, fluorophores used, analytical performance, etc. are summarized and discussed.

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Section: Chromo-fluorogenic Chemosensorsmentioning

confidence: 99%

Mercury Toxicity and Detection Using Chromo-Fluorogenic Chemosensors

2021

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“…Colorless changes from yellow to pink indicates the presence of mercury ion in the solution. This type of sensor is the best chemosensorand it is also a reusable probe20 .ECS Transactions, 107 (1) 16489-16499 (2022)Gurjaspreet Singh and colleagues had discovered a potential chemosensory based on Schiff base. This probe is made up of indole crown and Schiff's base.…”

mentioning

confidence: 99%

Fluorescent and Colorimetric Chemosensor for the Detection of Toxic Metal Ions of Mercury and Lead – A Mini Review

Tamizselvi¹,

Napoleon²

2022

ECS Trans.

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Variations in the predictable level of heavy metals ions have an uncompromising influence on living being and their surroundings. Real sample analysis was used to identify the heavy metal ions by using colorimetric and fluorescence techniques. The interaction of metal ions with the receptor has produced observable signals as measured by its photophysical changes. Nitrogen-containing heterocyclic compounds are the greatest weapons for identifying heavy metal ions, owing to their diverse reactivity, readily available substrate, and exquisite photophysical property. The main goal of this mini-review is to examine the current advancements in the structural analysis of nitrogen-containing heterocyclic compound-based fluorescence and colorimetric sensors. The interaction between receptor and metal by electron transfer mechanism and its wide applications have been developed and used for the sensing of heavy metal ions in the past ten years by various research groups about selectivity, sensitivity, reversibility, pH effect, stoichiometric ratio, binding constant, LOD values, and real-time applications.

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A Simple Colorimetric Probe for Sensitive Detection of Hg²⁺ Based on MnO₂ Nanosheets and Monothioglycerol

Ding

Zhao

et al. 2020

ChemistrySelect

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It is of great significance to develop efficient platforms for the detection of hypertoxic Hg 2 +. Colorimetric probes have received much attention for the detection of Hg 2 + in the last decades. In this work, a colorimetric probe composed of MnO 2 nanosheets and monothioglycerol (MTG) was rationally designed for Hg 2 + detection, which was facially prepared via onestep reaction at room temperature. The formation of HgÀ S bond between Hg 2 + and MTG inhibited the decomposition ability of MTG toward MnO 2 nanosheets, thus resulting in a color change from colorless to brown. On this basis, the probe quantified Hg 2 + in the concentration range from 2 to 60 μM with a low detection limit of 0.75 μM. The probe was applied to the detection of Hg 2 + in tap water successfully, and was further fabricated into test strips for the convenience of use. Thereby, a simple and sensitive colorimetric probe for Hg 2 + is developed in this work, which holds future promise for monitoring Hg 2 + in the environment.

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A Pyrazole‐Based Highly Selective Colorimetric Chemosensor for Hg²⁺ Ion in Semi‐Aqueous Medium

Cited by 14 publications

References 53 publications

Mercury Toxicity and Detection Using Chromo-Fluorogenic Chemosensors

Mercury Toxicity and Detection Using Chromo-Fluorogenic Chemosensors

Fluorescent and Colorimetric Chemosensor for the Detection of Toxic Metal Ions of Mercury and Lead – A Mini Review

A Simple Colorimetric Probe for Sensitive Detection of Hg²⁺ Based on MnO₂ Nanosheets and Monothioglycerol

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A Pyrazole‐Based Highly Selective Colorimetric Chemosensor for Hg2+ Ion in Semi‐Aqueous Medium

Cited by 14 publications

References 53 publications

Mercury Toxicity and Detection Using Chromo-Fluorogenic Chemosensors

Mercury Toxicity and Detection Using Chromo-Fluorogenic Chemosensors

Fluorescent and Colorimetric Chemosensor for the Detection of Toxic Metal Ions of Mercury and Lead – A Mini Review

A Simple Colorimetric Probe for Sensitive Detection of Hg2+ Based on MnO2 Nanosheets and Monothioglycerol

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Product

Resources

About

A Pyrazole‐Based Highly Selective Colorimetric Chemosensor for Hg²⁺ Ion in Semi‐Aqueous Medium

A Simple Colorimetric Probe for Sensitive Detection of Hg²⁺ Based on MnO₂ Nanosheets and Monothioglycerol