A method to detect Hg2+ in vegetable via a “Turn–ON” Hg2+–Fluorescent sensor with a nanomolar sensitivity

Kraithong, Sasiwimon; Panchan, Waraporn; Charoenpanich, Adisri; Sirirak, Jitnapa; Sahasithiwat, Somboon; Swanglap, Pattanawit; Promarak, Vinich; Thamyongkit, Patchanita; Wanichacheva, Nantanit

doi:10.1016/j.jphotochem.2019.112224

Cited by 28 publications

(10 citation statements)

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“…A method to detect Hg2 + in vegetable via a "Turn-ON" Hg 2 + -Fluorescent sensor with a nanomolar sensitivity. [38] 3.9 ppb Silver nanoparticle incorporated colorimetric/fluorescence sensor for sub-ppb detection of mercury ion via plasmon-enhanced fluorescence. [39] 0.49 ppb Cost-Effective and Selective Fluorescent Chemosensor (Pyr-NH@SiO2 NPs) for Mercury Detection in Seawater.…”

Section: Articles Lodmentioning

confidence: 99%

An Experimental and Quantum (QTAIM) Performance Study of a Proposed Molecular Chemosensor: A Quinazolinone‐Based Sensor for Hg²⁺ Ion Detection

et al. 2023

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This work synthesized a novel colorimetric ligand based on the compound quinazolinone (Sensor) and investigated it. The sensing activity of the sensor toward different cation was studied. The sensor demonstrated a highly selective colorimetric sensing toward Hg 2 + with a detection limit of 0.1 ppb and visual color change from colorless to Purple in methanol-water solvents (v/v, 10,90). The cation binding character was determined using visual inspection, UV-Vis, and fluorescence analyses. In the computational part, the interaction between the receptor and Hg 2 + ion was investigated using density functional theory (TD-DFT) and quantum theory of atoms in molecules (QTAIM) in the solution phase (in the presence of water as solvent and the CPCM model). Theoretical studies have shown that electronic properties such as energy gap, absorption energy, charge/energy transfer, and optical properties change dramatically in the presence of Hg 2 + cations. Also, the effect of the electric field on the electronic properties of the sensor/Hg 2 + complex improved the Hg 2 + cation adsorption process.

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Section: Articles Lodmentioning

confidence: 99%

An Experimental and Quantum (QTAIM) Performance Study of a Proposed Molecular Chemosensor: A Quinazolinone‐Based Sensor for Hg²⁺ Ion Detection

et al. 2023

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Section: Chromo-fluorogenic Chemosensorsmentioning

confidence: 99%

“…The fluorescence enhancement was observed due to complexation-induced inhibition of PET. The limit of detection of 3.9 ppb Hg 2+ was estimated for sensor 30, and was applied to detect Hg 2+ in drinking water, live cells and plant tissues [60]. Xiaobo et al [61] recently introduced a bismacrocyclic polyamine-based chemosensor 31 (Figure 11) containing two 4-nitro-1,2,3-benzoxa-diazole molecules for the selective detection of Hg 2+ in CH 3 CN/HEPES (1:9, v/v).…”

Section: Fluorescent Turn-on and Ratiometric 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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“…However, the less effective ‘turn‐off’ fluorescence detection mechanism is predominantly observed due to many factors such as using mixed aqueous medium that promotes aggregation caused quenching effect of traditional fluorophores with planar π‐conjugated systems or heavy atom effect leading to emission quenching effect [24,25] . In this context, the development of highly efficient small‐molecule based ‘turn‐on’ fluorescence detection system, featured with high signal contrast, enhanced sensitivity and reduction in false positive signals, is highly beneficial and challenging by surpassing the above limitations [26–28] …”

Section: Introductionmentioning

confidence: 99%

A New Thiophene‐Appended Fluorescein‐Hydrazone‐Based Chromo‐Fluorogenic Sensor for the Screening of Hg²⁺ Ions in Real Water Samples

et al. 2021

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A simple yet efficient, Hg2+ selective sensor, based on a fluroescein‐thiophene conjugate, namely, (Z)‐3′,6′‐dihydroxy‐2‐(((3‐methylthiophen‐2‐yl)methylene)amino)spiro[isoindoline‐1,9′‐xanthen]‐3‐one (FT) has been designed and synthesized. The compound was well characterized by analytical techniques such as HR‐MS, FTIR, UV‐visible absorption, steady‐state fluorescence and time‐resolved spectrophotometric techniques. Comprehensive analysis demonstrated FTas a highly specific and ultra‐sensitive sensor towards Hg2+ ions in presence of several other interfering metal ions in ethanol/H2O (9 : 1, v/v) at pH=7.2 buffered with 10 mM HEPES buffer at room temperature. The complexation of the probe FT with Hg2+ was well confirmed by ESI‐MS and FTIR spectral analysis. The detection limit of the probe FT towards Hg2+ was achieved down to 137 nM. The structure of ligand FT and FT‐Hg2+ complex were well corroborated by theoretical studies as well. In addition, the FT‐Hg2+ complex was found to be reversible in presence of di‐sodium EDTA and hence decipher its recyclability capabilities. The significance of the present probe FT lies in its successful application for the detection and quantification of Hg2+ in real water samples and logic gate fabrication for future incorporation in small organic molecule based efficient molecular devices.

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A method to detect Hg2+ in vegetable via a “Turn–ON” Hg2+–Fluorescent sensor with a nanomolar sensitivity

Cited by 28 publications

References 50 publications

An Experimental and Quantum (QTAIM) Performance Study of a Proposed Molecular Chemosensor: A Quinazolinone‐Based Sensor for Hg²⁺ Ion Detection

An Experimental and Quantum (QTAIM) Performance Study of a Proposed Molecular Chemosensor: A Quinazolinone‐Based Sensor for Hg²⁺ Ion Detection

Mercury Toxicity and Detection Using Chromo-Fluorogenic Chemosensors

A New Thiophene‐Appended Fluorescein‐Hydrazone‐Based Chromo‐Fluorogenic Sensor for the Screening of Hg²⁺ Ions in Real Water Samples

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A method to detect Hg2+ in vegetable via a “Turn–ON” Hg2+–Fluorescent sensor with a nanomolar sensitivity

Cited by 28 publications

References 50 publications

An Experimental and Quantum (QTAIM) Performance Study of a Proposed Molecular Chemosensor: A Quinazolinone‐Based Sensor for Hg2+ Ion Detection

An Experimental and Quantum (QTAIM) Performance Study of a Proposed Molecular Chemosensor: A Quinazolinone‐Based Sensor for Hg2+ Ion Detection

Mercury Toxicity and Detection Using Chromo-Fluorogenic Chemosensors

A New Thiophene‐Appended Fluorescein‐Hydrazone‐Based Chromo‐Fluorogenic Sensor for the Screening of Hg2+ Ions in Real Water Samples

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Product

Resources

About

An Experimental and Quantum (QTAIM) Performance Study of a Proposed Molecular Chemosensor: A Quinazolinone‐Based Sensor for Hg²⁺ Ion Detection

An Experimental and Quantum (QTAIM) Performance Study of a Proposed Molecular Chemosensor: A Quinazolinone‐Based Sensor for Hg²⁺ Ion Detection

A New Thiophene‐Appended Fluorescein‐Hydrazone‐Based Chromo‐Fluorogenic Sensor for the Screening of Hg²⁺ Ions in Real Water Samples