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Article
Chemistry, Inorganic & Nuclear
Gujuluva Gangatharan Vinoth Kumar et al.
Summary: In this study, a cyanide chromogenic probe (L) was utilized for the specific detection of Hg2+ ion using colorimetric technique. The probe exhibited selective response to Hg2+ ion with clear color changes from yellow to orange, and other metal ions had no impact on the colorimetric changes. The binding mechanism between the probe and Hg2+ ion was confirmed to be the formation of a charge transfer complex, and the probe could be reversed with EDTA.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Biochemical Research Methods
Weiping Lai et al.
Summary: We designed and synthesized a new near-infrared ratiometric fluorescent probe for monitoring mercury ions based on quinoline-fused rhodamine dye. The probe shows a ratiometric fluorescent change after treatment with mercury ions, with increased emission in the near-infrared region and significantly reduced emission in the visible region. The probe has remarkable detection selectivity, fast response, and high detection sensitivity, and can be applied as a detection tool for mercury ions with dual-channel ratiometric fluorescence imaging in living cells.
JOURNAL OF FLUORESCENCE
(2023)
Review
Biochemical Research Methods
Neha Kumari et al.
Summary: Metal cations play important roles in biology, medicine, and the environment. Selective sensing of metal cations is crucial for understanding metabolic processes, disease diagnosis, environmental analysis, and toxic detection. Schiff base probes have been widely used as fluorescent sensors for their easy processing and high sensitivity. This report presents an in-depth analysis of metal ion recognition by Schiff base fluorescent sensors, including their sensing mechanism and practical applications in cell imaging and real-life sample analysis.
JOURNAL OF FLUORESCENCE
(2023)
Article
Biochemical Research Methods
Mahantesh Budri et al.
Summary: In this study, a novel photoluminescent sensor based on a pyrene platform was developed, showing high selectivity and sensitivity towards Hg2+. The detection limit and association constant of the sensor for mercury were calculated using experimental results and fluorescence titration data. The practical application of the sensor for recognition of mercury(II) ions was successfully explored through economically viable test strips and cell imaging studies.
JOURNAL OF FLUORESCENCE
(2023)
Article
Chemistry, Physical
Lin Xiao et al.
Summary: In this study, a novel colorimetric and fluorescent dual-functional peptide-based probe FAHF was designed and prepared using solid phase peptide synthesis (SPPS) technology. FAHF showed high selectivity and rapid response towards Cu2+ and Hg2+ in 100% aqueous media, with recognizable color change observed by naked eye. The low concentrations of Cu2+ and Hg2+ could be accurately detected, with LODs of 61.02 nM and 40.27 nM, respectively. The FAHF-Cu2+ ensemble and FAHF-Hg2+ ensemble formed in situ were used as cascade probes for detecting S2- based on colorimetric and fluorescence off-on response, with LODs of 45.12 nM and 102.38 nM, respectively. Moreover, FAHF was successfully applied for fluorescence imaging of Cu2+, Hg2+, and S2- in living cells, and made into test strips for visual detection and rapid analysis under 365 nm UV lamp.
JOURNAL OF MOLECULAR STRUCTURE
(2023)
Article
Chemistry, Physical
Yanjie Du et al.
Summary: Herein, a phenanthro[9,10-d] imidazole Schiff based turn-on fluorescence sensor (compound 1) was synthesized for detecting Hg2+ in water samples. Compound 1 exhibited high sensitivity (detection limit was 45.76 nM) and rapid response (completed within 5 s) to Hg2+ with a fluorescence change from null to blue. The binding ratio of compound 1 to Hg2+ was determined to be 1:1 with a binding constant of 2.933 x 106 M-1. Detailed analysis and calculations confirmed the fluorescence emission mechanism and recognition mechanism of compound 1.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2023)
Article
Chemistry, Physical
Leyana K. Shaji et al.
Summary: We have developed a new chemosensor L based on benzothiazole conjugated with quinolinyl acrylate for the selective and sensitive detection of Hg2+ ions. The sensor shows minimal interference from other ions and can work in a wide pH range. The applicability of probe L in detecting Hg2+ in water and biological samples has been demonstrated.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2023)
Article
Biochemistry & Molecular Biology
Kristina Prsir et al.
Summary: Novel 1,8-naphthalimide-based fluorescent probes NI-1 and NI-2 were designed and screened for detection of heavy metal ions. NI-1 and NI-2 exhibited pH sensitivity and fluorescence intensity change in the presence of Cu2+ and Hg2+ ions. NI-1 could be used for quantification of Cu2+ ions in sub-micromolar quantities, while NI-2 showed remarkable selectivity for Hg2+ ions.
Article
Chemistry, Analytical
Awad I. Said et al.
Summary: A novel diamino triazine based 1,8-naphthalimide (NI-DAT) was synthesized and its photophysical properties were investigated. The fluorescence emission of NI-DAT was greatly affected by solvent polarity and quenched at higher pH due to photo-induced electron transfer. The chemosensor showed good selectivity and sensitivity towards Hg2+ in the presence of other cations and anions. Job's plot revealed a stoichiometric ratio of 2:1 for NI-DAT/Hg2+ complex.
Article
Spectroscopy
Shu-Chen Pei et al.
Summary: In this study, a dual colorimetric near-infrared fluorescent probe YF-Hg was constructed to rapidly and sensitively detect Hg2+, with the potential for live-cell fluorescence imaging.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2023)
Article
Spectroscopy
Guiqiao Wang et al.
Summary: A fluorescent signal-closing probe based on nitrogen-doped carbon quantum dots (NCQDs) was developed for quantitative detection of mercury ions (Hg2+). The NCQDs showed high selectivity and excellent anti-interference ability, and the detection system had a linear relationship between fluorescence quenching efficiency and Hg2+ concentration. The detection limit was 0.9 μM.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2023)
Article
Spectroscopy
Nishant Kumar Choudhary et al.
Summary: In this study, a vinyl substituted triphenylamine (TPA-alk) fluorescent probe was developed for the rapid and efficient detection of mercury ion (Hg2+) in water and biological environments. The probe showed selective detection of Hg2+ over a wide range of competitive metal ions and exhibited a blue shift in the UV absorbance spectrum. The detection limit was found to be 0.146 mu M (29.2 ppb) with high selectivity. The probe also showed biocompatibility and low cytotoxicity, making it suitable for cell imaging studies.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2023)
Article
Spectroscopy
Min Chen et al.
Summary: In this study, N, S co-doped carbon nanodots (NS-CDs) were used for fluorescent monitoring of Hg2+ with high sensitivity. Thymine modification further enhanced the sensitivity and the sensing system was also applicable for Hg2+ detection in tap water.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2023)
Article
Spectroscopy
Mosayeb Chaghaghazardi et al.
Summary: Nitrogen and sulfur co-doped carbon quantum dots (N,S-CQD) were synthesized and used as a selective fluorescent probe for the detection of mercury ions (Hg2+). The probe showed high sensitivity and could detect trace amounts of Hg2+ in water samples.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2023)
Article
Spectroscopy
Ping Wei et al.
Summary: A novel relay peptide-based fluorescent probe DGRK was synthesized and showed excellent water-solubility, stability, selectivity response, and large Stokes shift. It can detect Hg2+ and S2- and be used for fluorescence imaging in living cells, as well as for portable test strip analysis.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2023)
Article
Chemistry, Multidisciplinary
Layla Alzahrani et al.
Summary: This study presents a simple and direct spectrophotometric method for determining Hg(II) ions, which eliminates the need for additional solvent purification or pre-concentration. The method can accurately and sensitively detect mercury ions in tap water and Zamzam water samples under specific experimental conditions.
ARABIAN JOURNAL OF CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Tianzhu Shi et al.
Summary: A Schiff base acylhydrazone fluorescent probe (DPTYMH) was designed and synthesized for the selective detection of mercury ions (Hg2+), showing positive solvent photochromic effect based on intra-molecular charge transfer (ICT) mechanism. The probe exhibited rapid response time and low detection limit. It was successfully applied for the analysis of Hg2+ in water samples and used to construct a molecular logic gate. Moreover, DPTYMH test strips were developed for potential environmental detection of Hg2+ ions.
Article
Chemistry, Analytical
Waheed Ullah Khan et al.
Summary: High biocompatible nitrogen and sulfur co-doped carbon dots were synthesized through a one-step hydrothermal approach, exhibiting low toxicity and bright blue fluorescence, and they showed potential for chemical sensing and biological imaging applications.
ANALYTICA CHIMICA ACTA
(2023)
Article
Chemistry, Applied
Chenming Chan et al.
Summary: Due to the significant hazardous impact of Hg2+ on the environment and ecosystem, there is a need for highly sensitive and selective Hg2+ probes. A new imidazole-based Hg2+ probe has been synthesized and characterized, which can detect Hg2+ through an ion-specific co-ordination mechanism. The probe exhibits significant fluorescence enhancement in acetonitrile solutions containing Hg2+, with a limit of detection of 0.30 mu M. Additionally, it shows utility in detecting Hg2+ in biochemical systems and the environment based on paper test strip and HeLa cell experiments.
Article
Environmental Sciences
Greeshma Gigi et al.
Summary: The current study developed a portable solid-state opto-sensor for selective and sensitive detection of ultra-trace Hg2+ ions in water samples. The sensor was fabricated by impregnating a chromoionophoric probe onto a porous polymer framework, serving as an efficient platform for regenerative sensing. The sensor exhibited superior color shift and had a broad linear response range, low detection limit, and reusability potential.
ENVIRONMENTAL RESEARCH
(2023)
Article
Chemistry, Applied
Siying Che et al.
Summary: Here, a novel ionic fluorescent probe based on a functional quinoline-based IL is introduced for selective and sensitive detection of mercury(II) ions through the regulation function of electrostatic attraction. The probe exhibits high sensitivity (0.8 nM) and selectivity, outperforming quinoline probes without negative charge. It also demonstrates the ability to generate different fluorescent and colorimetric signals in the presence of various concentrations of mercury(II) ions, attributable to the formation of large conjugated systems and anion-mercury(II) complexes. Additionally, the probe can be loaded onto filter paper to function as a visual paper sensor with a rapid response time of less than 5 s.
Article
Engineering, Environmental
Serkan Erdemir et al.
Summary: Researchers have developed a novel fluorescence probe for the sensitive and selective detection of Hg2+, Cu2+, and Thiram. The probe has been successfully applied in real samples and also allows visualization of the ions in cells.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Physics, Atomic, Molecular & Chemical
Muhammad Mansha et al.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Chemistry, Physical
Saravanan Enbanathan et al.
Summary: In order to detect Hg2+ ions in organic semi-aqueous solutions, we created a fluorescent probe called DDPD with optical properties. Through a Hg2+-promoted deprotection process, the probe DDPD selectively detected Hg2+ ions in a broad pH range with a detection limit of 56 nM. DDPD can be used to qualitatively identify Hg2+ ions using test strips made of Whatman filter paper and also in HeLa cells it can identify and image Hg2+ ions using fluorescent microscopy.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2023)
Article
Chemistry, Physical
Bingxin Du et al.
Summary: Developing selective and sensitive probes for mercury ion (Hg2+) is crucial due to its high toxicity and threat to public health and the environment. A new dye InRh has been prepared, which exhibits stable fluorescent signals in water over a wide pH range. A novel fluorescent probe InRhH for Hg2+ has been developed based on InRh, showing selective fluorescence off-on signal changes with a visible color change and a response time of 40 min. The probe can be applied for test strip experiments and detects Hg2+ at a level of 10-6 M with visible color change, and it can also be used for sensing Hg2+ in living cells by fluorescence imaging.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2023)
Article
Environmental Sciences
Meiqing Zhu et al.
Summary: In this study, a reversible CHEF-based near-infrared fluorescent probe DHEY capable of specifically recognizing Hg2+ was constructed. DHEY showed advantages of large Stokes shift, excellent selectivity, high sensitivity, and fast response efficiency. Interestingly, DHEY can also realize rapid and effective detection of Hg2+ after being recycled multiple times. The successful recovery of trace Hg2+ in different environmental water samples fully demonstrates the potential of DHEY for actual applications. In addition, DHEY enables real-time observation of the distribution and translocation pattern of exogenous Hg2+ in HeLa cells and zebrafish, providing important theoretical support for investigating the fate of heavy metal ions in the environment using fluorescence techniques.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Spectroscopy
Ju Yang et al.
Summary: Diethylenetriamine-ll-cyclodextrin-modified carbon quantum dots (3N-CQDs) were synthesized via a one-step hydrothermal method and showed good anti-interference capability. The prepared carbon quantum dots had low cytotoxicity, good biocompatibility, and excellent cellular imaging capability for HeLa cells. They were ideal fluorescent probes for the detection of Hg2+ and Fe3+ in water, with a relative fluorescence quantum yield of 67.2%.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2023)
Article
Spectroscopy
Hongqi Li et al.
Summary: A novel thionocarbonate-coumarin-thiourea triad-based probe with dual recognition sites was developed for sensing Hg2+ ions. The probe exhibited both fluorogenic and chromogenic sensing performance, with a 70-fold increase in fluorescence intensity upon the addition of Hg2+. It showed excellent selectivity and sensitivity for Hg2+ compared to other common metal ions, and had a linear response range from 0-40 μM with a LOD of 0.12 μM.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2023)
Article
Spectroscopy
Kunfeng Liu et al.
Summary: Surface modification of N, S-CDs was performed using cysteine and polyethylenimine as raw materials. The prepared N, S-CDs exhibited excitation-independent in the range of 300-380 nm. A fluorescence sensor with high sensitivity and selectivity to detect Hg2+ was developed based on the quenching effect of Hg2+ on the fluorescence intensity of N, S-CDs.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2023)
Article
Chemistry, Organic
Na Xiao et al.
Summary: A new isophorone-based chemodosimeter was developed for rapid, ratiometric, and selective detection of Hg2+ ions in buffer solution. The chemodosimeter exhibited a red-shift in fluorescence spectrum and a color change upon Hg2+ ion-induced deprotection of the dithioacetal group. The probe demonstrated good linearity and a detection limit of 0.2 lM in the range of 0-10.0 lM.
TETRAHEDRON LETTERS
(2023)
Article
Biochemical Research Methods
Xin Li et al.
ANALYTICAL AND BIOANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Analytical
Rupam Roy et al.
Summary: The development of fluorometric detection methods using fluorescent dyes for toxic metal ions in real samples and cellular environments has attracted significant research interest. This study presents the design and synthesis of a fluorescence probe His-NMI-Bu based on a 1,8-naphthalimide backbone, which exhibits intramolecular charge transfer. The probe demonstrates excellent pH tolerance in the pH range of 5-10 and chelation-induced fluorescence attenuation with Hg2+ ions, making it a suitable sensor for mercury ions. The probe also shows selective localization inside lysosomes, allowing for monitoring of mercury ions in these cellular compartments.
Review
Chemistry, Analytical
Yang Shi et al.
Summary: Metal ions are crucial in biochemical processes and their imbalance can lead to diseases. Developing a sensor to detect metal ions is critical for medical diagnostics. Fluorescent sensors have been extensively studied and show high sensitivity, selectivity, real-time monitoring, and versatility in assessing metal ions in living systems. This review summarizes recent advances in fluorescent sensors for metal ion detection and imaging in biosystems, discussing their applications in diagnostics, living cell imaging, and in vivo imaging, as well as future prospects and challenges.
Article
Chemistry, Analytical
Sofian Kanan et al.
Summary: The organic sensor Sensor A, prepared by the reaction of 1,3,5-benzenetricarboxylic acid and o-aminophenol in ethanol, fulfills the requirements for chemiluminescent detection of mercury and iron ions in aqueous solutions. It selectively detects these ions in the presence of other metal ions and exhibits a higher affinity for mercury ions. The sensor shows a linear response in a wide concentration range and has a high adsorption capacity for mercury ions.
Review
Chemistry, Analytical
Soma Sarkar et al.
Summary: In this paper, we have discussed the important modified rhodamine compounds used as chemosensors in the last 7-8 years. The review covers chemosensors for the detection of metal ions such as Al(III), Cu(II), Hg(II), Co(II), Fe(III), Au(III), Cr(III), and anions like CN-. The paper provides a clear description of the selectivity, sensitivity, photophysical properties, binding affinity, limit of detection, and application of these chemosensors. Additionally, functionalized rhodamine-based chemosensors emitting in the near-infrared region and targeting lysosomes for pH detection are discussed, along with their versatile applicability in medicine. The photophysical properties of spirolactam rhodamine photoswitches and their applications in single-molecule localization microscopy and 3D light photoactivable dye displays are also highlighted, along with the real-time detection of radical intermediates.
CRITICAL REVIEWS IN ANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Applied
Yangmei Wu et al.
Summary: A novel fluorescent probe (TO-PCBM) based on flavonol and thiocarbonate was synthesized for turn-on monitoring of Hg2+. The probe exhibited sensitive detection, low limit of detection, large Stokes shift, and fast response. The unique sensing mechanism involved the deprotection of thiocarbonate induced by Hg2+, resulting in the emission of strongly excited state intramolecular proton transfer of MHPCB. The probe showed high recovery rate in real environmental water samples and successfully monitored Hg2+ in fluorescence imaging of zebrafish and onion cells.
Article
Chemistry, Analytical
Xiao Wang et al.
Summary: Mercury is a toxic heavy metal pollutant that poses serious threats to the environment and organism health. Oxidative stress caused by Hg2+ exposure results in the production of reactive oxygen and nitrogen species, damaging the health of organisms. Developing an efficient screening method to monitor the fluctuations in Hg2+ and ONOO- levels is crucial.
ANALYTICA CHIMICA ACTA
(2023)
Article
Chemistry, Analytical
Pawan Kumar Sada et al.
Summary: A new rhodamine-6G hydrazone (RHMA) was synthesized using rhodamine-6G hydrazide and 5-Allyl-3methoxysalicylaldehyde. RHMA was fully characterized and showed selective recognition of Cu2+ and Hg2+ among other metals. The absorbance and fluorescence of RHMA changed significantly with the presence of Cu2+ and Hg2+, resulting in a visual color change. RHMA also showed reversibility in the presence of EDTA2- ions and can be applied as a test strip for detection.
ANALYTICA CHIMICA ACTA
(2023)
Article
Spectroscopy
Xiangqian Li et al.
Summary: In this study, a selective fluorescent probe called ICM-Hg was successfully designed and synthesized for the detection of Hg2+ in real samples and intracellular staining. ICM-Hg displayed high specificity toward Hg2+ through the activation of intramolecular charge transfer (ICT) process, resulting in a distinct color change and enhanced yellow fluorescence emission. The fluorescent intensity of ICM-Hg showed a linear relationship with Hg2+ concentration (0-45 μM), with a detection limit of 231 nM. Furthermore, ICM-Hg demonstrated efficient detection of Hg2+ in real samples such as tap water, tea, shrimp, and crab, as well as intracellular fluorescence imaging.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2023)
Article
Spectroscopy
Liangyu He et al.
Summary: A naphthalimide functionalized fluoran dye NAF has been prepared, which exhibits a red-shift in emission at 550 nm in a water-CH3CN mixture due to aggregating induced emission (AIE) effect. NAF can function as a selective and sensitive sensor for Hg2+ ions by displaying a ratiometric fluorescence signal change and visible color change. It shows fast response time, wide pH range, and low detection limit, making it suitable for ratiometric imaging of Hg2+ ions in living HeLa cells.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2023)
Article
Chemistry, Analytical
Yusuf Alcay et al.
Summary: This study aimed to construct a new NIR fluorophore probe (CSME) based on a chromenylium cyanine platform decorated with methionine biomolecule, to address the shortcomings in the analysis of hazardous Hg2+ in the environment and living cells. The CSME structure and its interaction with Hg2+ ion were assessed using various techniques, and the probe showed significant changes in spectral and colorimetric properties upon interaction with Hg2+. The probe exhibited fast response time, wide linear ranges, and a lower Limit of Detection (LOD) compared to the US Environmental Protection Agency (EPA) prediction. It was successfully applied for Hg2+ analysis in drinking water, tap water, and living cells.
Review
Engineering, Environmental
G. Prabakaran et al.
Summary: Fluorometric/colorimetric chemosensors have become increasingly important in the precise detection of metal ions due to their specificity, economy, rapid reaction, ease of use, nakedeye screening, and low detection limit. This study focuses on pyrene fluorophore-derived fluorescent chemosensors, particularly for detecting D-transition metal ions and their applications in environmental and biological samples. Various mechanisms, such as energy transfer, ligand to metal charge transfer, and aggregation-induced emission, have been utilized in these chemosensors. In terms of applications, pyrene-based fluorescent derivatives have been successfully used in the examination of live cells, water, and food samples in different domains. Recent studies have specifically covered the synthesis and design of adaptable pyrene fluorophore-based derivatives for specific detection of D-transition metal ions, binding processes, detection limits, and diverse applications from 2018 to 2022.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Chemistry, Multidisciplinary
Mani Rajasekar et al.
Summary: Nowadays, fluorescence sensors are widely used in various domains such as biology, physiology, environmental sciences, and pharmacology. Despite the advancements in this field, several issues and difficulties persist. This review provides a historical overview and highlights innovative works from international groups that have contributed significantly to the study of fluorescence sensors. It also explores ethical considerations, challenges, and potential future research avenues in developing sensors for particular analytes. The future of sensor technology appears to be promising in both established and emerging technologies.
RESULTS IN CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Yanru Huang et al.
Summary: In this study, a benzothiazole derived fluorescent probe based on the AIE + ESIPT mechanism was developed for the rapid detection of mercury ion (Hg2+). The probe showed excellent selectivity, good anti-interference ability, low detection limit (2.85 x 10(-9) M), and a large Stokes shift (170 nm) in a DMF/H2O mixture solution. The practical application evaluation confirmed its effectiveness in live cell imaging, natural water, and seafood samples for precise determination of Hg2+.
NEW JOURNAL OF CHEMISTRY
(2023)
Review
Chemistry, Analytical
Zeng-Hui Yuan et al.
Summary: This article introduces small-molecule fluorescent probes developed in recent years for detecting mercury ions. Compared to traditional quantitative methods, these fluorescent probes have advantages such as convenient detection, high sensitivity, and good selectivity. By comparing the performances and explaining the mechanisms of these probes, it is hoped to provide certain reference value for the design and application of metal ion fluorescent probes.
CRITICAL REVIEWS IN ANALYTICAL CHEMISTRY
(2022)
Article
Chemistry, Analytical
Serkan Erdemir et al.
Summary: In this study, a new fluorescent probe THI based on electron deficient dicyanovinyl, electron-rich diethylamino, and receptor thiazoline has been developed for the detection of Hg2+ ions. The probe shows reversible recognition behavior towards Hg2+ with S2-. It exhibits high selectivity towards Hg2+ with low detection limit and solvato-chromism properties in tested solvents. Furthermore, it can be used as a fluorescent probe to visualize Hg2+ in living cells without any toxic effect.
ANALYTICA CHIMICA ACTA
(2022)
Article
Chemistry, Applied
Ashwani Kumar et al.
Summary: The study developed a highly effective probe (probe 5) for sensitive detection and selective binding of Hg2+ in aqueous samples, as well as the detection of methylmercury. The probe exhibited a strong fluorescence quenching effect and demonstrated excellent Hg2+ detection capability in human cells.
Article
Spectroscopy
Brian Musikavanhu et al.
Summary: The new Schiff base probe QT shows high selectivity and sensitivity towards Hg2+ detection, even in the presence of other common metal ions. It has potential applications in both laboratory settings and field testing with environmental samples.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2022)
Article
Chemistry, Analytical
Ji Wang et al.
Summary: A design strategy for constructing luminescent organic molecules with high selectivity and sensitivity for detecting mercury ions was reported. The molecules, featuring NH-pyrazole groups, showed strong fluorescence and demonstrated a proof-of-concept luminescent sensor for Hg(II) ion detection in environmental water samples.
ANALYTICA CHIMICA ACTA
(2022)
Review
Chemistry, Analytical
Zarif Gul et al.
Summary: To maintain a green and sustainable environment, rapid detection of potentially toxic heavy metals like mercury has attracted great attention. In recent years, nanoparticles-based sensors have been developed as an alternative to bulky organic chemosensors due to their rapid response, low cost, eco-friendly nature, and easy synthesis. This review discusses promising nanoparticles-based sensors for mercury detection, which show clear color or fluorescence change upon coordination with Hg(II) ions. The sensors are even capable of detecting mercury in different oxidation states and recent trends have shifted towards the use of magnetic nanoparticles for simultaneous detection and removal of Hg(II) ions from environmental samples.
CRITICAL REVIEWS IN ANALYTICAL CHEMISTRY
(2022)
Article
Chemistry, Applied
Weijie Chen et al.
Summary: Heavy metal pollution, especially mercury(II) contamination, is a severe threat to human health and environmental security. This study developed a new near-infrared fluorescent probe that can specifically detect and measure mercury(II) ions and be used for in vivo imaging in biological systems.
Article
Optics
Wen-Li Guan et al.
Summary: Developing a simple and low-cost method for detecting toxic ions is a crucial challenge. This study presents a novel fluorescent sensor that shows high sensitivity and specific selectivity towards Hg2+ and CN-. The sensor also functions as a fluorescence turn-on selective sensor for CN- with high anti-interference ability. The mechanisms of ion recognition were investigated through experiments and quantum chemical calculations, providing insights into the collaboration of the fluorescent signal groups and confirming charge transfer. Additionally, logic gates and test kits for detecting Hg2+ and CN- were prepared.
JOURNAL OF LUMINESCENCE
(2022)
Article
Optics
Jalal Isaad et al.
Summary: A novel coumarin-thiol chemosensor L has been designed and prepared for sequential colorimetric and fluorescent detection of mercury (II) and cyanide ions in aqueous solution. The probe L shows high selectivity and sensitivity towards mercury (II) cations, and forms a complex L/Hg2+ which exhibits red-shift and fluorescence quenching. In turn, the complex L/Hg2+ shows high selectivity for cyanide anions. A test paper was also developed for simultaneous detection of mercury (II) and cyanide ions in pure water without the need for additional equipment.
JOURNAL OF LUMINESCENCE
(2022)
Article
Chemistry, Physical
Gurjaspreet Singh et al.
Summary: A new series of thiosemicarbazone-triazole linked organotriethoxysilanes were synthesized and characterized for selective detection of Hg2+ ion with high binding affinity. The chemosensor 6a showed potential biological application in monitoring Hg2+ ions with low cytotoxicity.
JOURNAL OF MOLECULAR STRUCTURE
(2022)
Article
Chemistry, Physical
Uma Krishnan et al.
Summary: A new fluorescent probe bearing the 2-aminothiophenol moiety was designed and synthesized, showing dual-sensing behavior for Hg2+ and Cr3+ ions with detection limits of 6 nM and 1.96 nM, respectively. The probe is pH-independent in the range of 6.0 to 12.0, offering new possibilities for constructing colorimetric and ratiometric responses.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2022)
Article
Chemistry, Physical
Yan Zhang et al.
Summary: In this research, a new fluorescent probe BC-Hg was designed and synthesized, which can rapidly and quantitatively detect Hg2+ in water samples and living systems, with its specificity and anti-interference ability. It also exhibits a naked eye colorimetric effect and the Tyndall effect.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2022)
Article
Chemistry, Physical
Serkan Erdemir et al.
Summary: A novel sensory macromolecule has been designed for the recognition of Ca2+ ions, which has demonstrated excellent sensing behavior and can be used for monitoring calcium ions in various environments.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2022)
Article
Spectroscopy
Ananta Hazra et al.
Summary: In this study, a rhodamine-based compound (RBO) was reported as a selective fluorescent chemosensor for the detection of Al3+ and Hg2+ ions. It exhibited a high fluorescence enhancement and low detection limits, and could also be used for constructing logic gates.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2022)
Article
Chemistry, Organic
Guangbo Bao et al.
Summary: In this study, a new water-soluble fluorescent chemical sensor was designed and developed for rapid and efficient detection of mercury ions in aqueous solutions. The sensor exhibited high selectivity, sensitivity, significant Stokes shift, fast kinetics, and low detection limit.
TETRAHEDRON LETTERS
(2022)
Article
Chemistry, Multidisciplinary
Shahid Ali et al.
Summary: This study reported the synthesis and characterization of pyrene-functionalized silica nanoparticles for the selective detection of mercury ions in seawater samples. The chemosensor showed high selectivity towards mercury ions and a low detection limit, making it a promising tool for mercury ion detection in marine environments.
Article
Chemistry, Multidisciplinary
Xiao-Juan Wang et al.
Summary: A novel valine-based isocyanonaphthalene (NpI) was synthesized and used for the selective fluorescence detection of Hg2+. The probe exhibited high sensitivity, excellent aqueous solubility, and good antijamming capability, and could be used for real-time detection. It was also successfully applied to visualize intracellular Hg2+ in living cells and monitor Hg2+ in real water samples with good recoveries and small relative standard deviations.
FRONTIERS IN CHEMISTRY
(2022)
Article
Chemistry, Physical
Jalal Isaad et al.
Summary: A novel colorimetric and fluorescent coumarin hydrazone probe L was developed to detect and quantify Hg2+ and CN- cations based on absorbance and emission titrations.
JOURNAL OF MOLECULAR STRUCTURE
(2022)
Article
Chemistry, Analytical
Ranjana Aggarwal et al.
Summary: We synthesized a new environmentally safe organic molecule for the detection and treatment of mercury. This molecule acts as a selective Hg2+ ion chemosensor with good sensitivity and binding affinity. It also exhibits strong antimicrobial activity and shows non-toxicity in cell viability studies.
MICROCHEMICAL JOURNAL
(2022)
Article
Spectroscopy
Kun Huang et al.
Summary: This study reports a new pyridyl-functionalized rhodamine dye, PR, which has stable fluorescence signal in water. Based on PR, a fluorescent probe, PRHg, has been developed for sensing Hg2+. PRHg shows high selectivity and sensitivity towards Hg2+ and can respond to Hg2+ within 40 minutes.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2022)
Article
Food Science & Technology
Yibin Zhang et al.
Summary: In this study, a NIR emission fluorophore called dicyanoisophorone and a recognition function motif called thiobenzoate were used to fabricate a probe called HgS. The probe HgS can respond to Hg2+ in the NIR emission range and has a significant Stokes shift, excellent selectivity, and biocompatibility. It can be used to monitor Hg2+ in bio-system and water samples.
FOOD ANALYTICAL METHODS
(2022)
Article
Biochemistry & Molecular Biology
Jinjin Zeng et al.
Summary: This study synthesized red-emissive carbon dots with great potential in bioimaging and biosensing. The obtained carbon dots exhibited high water solubility, strong red emission, and high fluorescence quantum yield. They also acted as highly selective and sensitive probes for detecting Hg2+ and glutathione. The study demonstrated the biocompatibility and feasibility of these carbon dots in bioimaging, suggesting promising applications in biological and environmental assays.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Chemistry, Physical
Hongjin Chen et al.
Summary: A new fluorescence sensor M1 consisting of 4,4-difluoro-4-bora-3a,4a-diazaindacene (BODIPY) and thiosemicarbazide moieties was designed for selective and sensitive detection of mercury ion.
JOURNAL OF MOLECULAR STRUCTURE
(2022)
Article
Chemistry, Physical
Linyun Wu et al.
Summary: In this study, we designed and synthesized an efficient and stable method for detecting mercury ions, which exhibited fast response and high selectivity. The method showed excellent performance in detecting mercury ions and achieved high recovery rates in actual environmental water samples. Furthermore, it was successfully applied to living cells, plant cells, and living bodies in the field of biology.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2022)
Article
Chemistry, Analytical
Guimei Wang et al.
Summary: Two novel near-infrared probes have been developed for efficient and rapid detection of Hg2+, showing excellent sensitivity and selectivity in vitro.
MICROCHEMICAL JOURNAL
(2022)
Article
Spectroscopy
Qian Zhang et al.
Summary: In this study, a novel fluorescent probe 1 based on rhodamine and anthracene groups was designed and synthesized for the selective, sensitive, and ratiometric detection of Hg2+ using the FRET mechanism. The probe exhibited a fast response time and a visible color change, and it was successfully used for cell imaging of Hg2+ detection. The mechanism of Hg2+ detection by probe 1 was verified through various experimental techniques.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2022)
Article
Chemistry, Multidisciplinary
Nannan Zhu et al.
Summary: The determination of mercuric ions (Hg2+) in environmental and biological samples has attracted researchers' attention lately. In this study, a novel turn-on Hg2+ fluorescent probe utilizing a rhodamine derivative has been constructed, which can sensitively and selectively sense Hg2+. The probe shows reversible dual colorimetric and fluorescence sensing of Hg2+ through forming a 1:1 coordination complex with Hg2+.
Article
Chemistry, Multidisciplinary
Pushparani Selvakumar Umabharathi et al.
Summary: In this study, an azomethine thiazole compound, AM1, was synthesized and demonstrated to have high sensitivity for the detection of mercury ions through colorimetry, fluorescence, and visual observation. The structure of AM1 was confirmed and its sensitivity was attributed to quenching mechanism. Real-time detection of Hg2+ ions in HeLa cell line was achieved using AM1-coated test strip. The study provides a potential method for the detection of heavy metal ions in living organisms.
Article
Chemistry, Analytical
Meijun Su et al.
Summary: Considering the threat of mercury ions to human health and the environment, a simple water-soluble naphthalimide derived fluorescent dye was constructed based on the twisted intramolecular charge transfer mechanism. This dye has the ability to detect and remove Hg2+ with high sensitivity, and it possesses excellent water solubility and AIEE characteristics.
ANALYTICA CHIMICA ACTA
(2022)
Review
Chemistry, Analytical
Zarif Gul et al.
Summary: Rapid detection of potentially toxic heavy metals like Hg(II) has attracted attention due to the importance of maintaining a safe environment. Coordination chemistry plays a crucial role in the detection of Hg(II). The size, charge, and nature of the donor atom and cation are crucial in the selective interaction between the sensor and metal ions. Designing sensors with utmost sensitivity and selectivity is still a work in progress.
CRITICAL REVIEWS IN ANALYTICAL CHEMISTRY
(2022)
Article
Chemistry, Inorganic & Nuclear
Dhanapal Jothi et al.
Summary: This study developed a novel fluorescent sensor for the selective and sensitive detection of Hg2+, utilizing the thioacetal group as a sensing unit. The sensor showed high selectivity and rapid response towards Hg2+ in solution, and was also able to be used for Hg2+ imaging in live cells.
INORGANIC CHEMISTRY COMMUNICATIONS
(2022)
Article
Biochemical Research Methods
Mahesh Gosi et al.
Summary: A probe combining fluorescent moieties coumarin and xanthene was designed and synthesized for detection of copper and mercury ions. The probe exhibited turn-off and turn-on fluorescence for copper and mercury ions respectively, and showed better sensitivity towards these ions compared to other competing metal ions. The probe's detection limits were determined by UV-visible spectral and fluorescence measurements. Additionally, a filter paper containing the probe was prepared, which could detect copper and mercury ions in real-time with a color change.
JOURNAL OF FLUORESCENCE
(2022)
Article
Chemistry, Inorganic & Nuclear
Hongyu Wang et al.
Summary: A new Porous Organic Polymer (POP), CTF-PTZ, with high selectivity and low detection limit for Hg2+ detection, was synthesized through polymerization in the presence of trifluoromethanesulfonic acid catalyst. The fluorescence responsive POP material shows promising potential for Hg2+ detection.
JOURNAL OF SOLID STATE CHEMISTRY
(2022)
Article
Chemistry, Analytical
Kun Jia et al.
Summary: This study demonstrates the synthesis of amphiphilic polyurethane (PU) to encapsulate hydrophobic quantum dots (QD) and the conjugation of green emitting carbon nanodots (CD) with the QD@PU probe for enhanced detection of Hg (II). Furthermore, both QD@PU and CD-QD@PU doped stretchable PU membranes can be used for naked eye discrimination of Hg (II).
SENSORS AND ACTUATORS B-CHEMICAL
(2022)
Review
Chemistry, Organic
Pooja et al.
Summary: Due to their intense and persistent fluorescence emission, structural flexibility, and excellent biocompatibility, coumarins are widely used in developing new fluorescent chemosensors. They have been used for sensing various metal ions and have shown potential applications in imaging, biology, and medical research.
ASIAN JOURNAL OF ORGANIC CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Qiren Tan et al.
Summary: A rapid, simple, and sensitive parallel detection method for Cd2+ and Hg2+ using carbon dots as fluorescent sensors was developed in this study. The method showed good selectivity and detection limits for Cd2+ and Hg2+, and has been successfully applied in fruits and vegetables.
FRONTIERS IN CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Shunwei Wu et al.
Summary: Nitrogen doped carbon quantum dots (N-CQDs) were synthesized through a simple method and optimized in preparation conditions. The synthesized N-CQDs exhibited specific selectivity for Hg2+ with good linear correlation and low detection limit. Additionally, N-CQDs were successfully applied for the detection of Hg2+ in tap water and industrial wastewater, as well as in fluorescent inks and cell imaging.
Review
Chemistry, Multidisciplinary
Graciela M. Escandar et al.
Summary: Recent publications on spectroscopic methodologies for detecting mercury in drinking water are reviewed. The specific details and performance of the developed protocols are critically analyzed, with special emphasis on their validation and applicability to real samples. It was found that while most studies provide detailed information on the synthesis and properties of the sensing phases, they do not follow the latest developments in analytical techniques. Recommendations are provided for proper method development and validation.
Article
Chemistry, Multidisciplinary
Archana Raveendran et al.
Summary: Metals are essential to life forms but exposure to heavy metal ions can be detrimental. Fluorescence spectroscopy, especially using BODIPY-based fluorescent probes, has advantages in detecting metal ions due to their simplicity, selectivity, and sensitivity. This review focuses on the detection of IIB metal ions using derivatives of BODIPY, discussing synthetic procedures, design principles, binding mechanisms, photophysical properties, and biological applications. The review highlights the potential of BODIPY dyes as cellular imaging agents and provides valuable references for researchers in this field.
RESULTS IN CHEMISTRY
(2022)
Article
Chemistry, Analytical
Min Li et al.
Summary: A new NIR probe CyP was synthesized for selective detection and imaging of Hg2+ in living cells and animals, demonstrating good performance in experiments.
Article
Chemistry, Multidisciplinary
Daoyong Jiang et al.
Summary: A novel fluorescent probe, PM, was successfully synthesized and designed for the colorimetric fluorescent detection of Hg2+ in aqueous THF solution. The sensing mechanism of PM involves the metal ion-induced hydrolysis of the Schiff-base skeleton, which was confirmed by various experiments and calculations. A portable smartphone-assisted platform was established for the convenient and reliable Hg2+ detection. PM was also applied to monitor intracellular Hg2+ ions and has the potential for developing specific chemoprobes for Hg2+ detection in sulfur-rich living organisms.
NEW JOURNAL OF CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Meijun Su et al.
Summary: In this study, a new water-soluble fluorescent probe NIML was designed and synthesized for the detection and removal of mercury ions. The binding of NIML and Hg2+ resulted in fluorescence emission enhancement and aggregation, allowing for reliable monitoring results. The probe had good water solubility and low toxicity, making it suitable for imaging living cells and zebrafish.
NEW JOURNAL OF CHEMISTRY
(2022)
Review
Chemistry, Applied
Huang Shuai et al.
Summary: The study summarizes recent efforts in developing fluorescent probes for detecting mercury ions, highlighting strategies, methods, and capabilities of the probes, as well as proposing prospects for future research.
Review
Polymer Science
Neha Choudhury et al.
Summary: This review article provides recent insights on metal ion sensing applications, specifically focusing on Cu2+/Hg2+ ions, using a wide array of polymeric probes including pendant receptor-based, mesoporous and nanoparticle silica-based polymers, conjugated polymers, imprinted polymers, and polymeric nanoparticles. The article also emphasizes the sensing mechanism of these sensors through a number of crucial processes.
EUROPEAN POLYMER JOURNAL
(2021)
Article
Chemistry, Physical
Cinthia Quiroga-Campano et al.
Summary: Calix[4]arenes-based fluorescent chemosensors containing thiosemicarbazone and naphthalene were synthesized and examined for their binding abilities towards anions and cations. Both receptors showed selective recognition of Cu(II) and exhibited an off/on fluorescence behavior due to complex formation with copper. The H-1 NMR spectra indicated that receptor L2 changed its conformation from cone to pinched cone upon interaction with copper.
JOURNAL OF MOLECULAR STRUCTURE
(2021)
Article
Chemistry, Physical
Mani Rajasekar
Summary: Rhodamine dyes are widely used as fluorescent probes due to their high fluorescence quantum yield and photo-stability. While minute quantities of heavy metal ions are necessary for organisms, excessive amounts can have damaging effects. The development of chemical sensors is important for sensing and recognizing environmental and biological applications.
JOURNAL OF MOLECULAR STRUCTURE
(2021)
Article
Chemistry, Multidisciplinary
Amrit Kaur et al.
Summary: The supramolecular assemblies of Naph-MDHP show strong affinity for Fe2+ ions and H2O2, generating highly fluorescent architectures in aqueous medium while preventing the oxidation of Fe2+ ions and Fenton reaction. These assemblies have real-time applications in protecting dopamine and DNA from iron-H2O2 induced oxidative stress.
Review
Engineering, Environmental
Sikandar Khan et al.
Summary: Schiff bases are compounds synthesized through the condensation reaction of primary amines with carbonyl compounds, showing potential applications in medicine and chemical sensing. They coordinate with various metal ions to form stable complexes and are utilized as chemical sensors for detecting different metal ions.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Environmental Sciences
Michael S. Bank
SCIENCE OF THE TOTAL ENVIRONMENT
(2020)
Article
Engineering, Chemical
Yu Ding et al.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2019)
Review
Nanoscience & Nanotechnology
Donggeon Yoo et al.
NANOSCALE RESEARCH LETTERS
(2019)
Article
Multidisciplinary Sciences
Ehsan Yahyazadeh et al.
Article
Chemistry, Multidisciplinary
Geng Yang et al.
Review
Chemistry, Inorganic & Nuclear
Baljeet Kaur et al.
COORDINATION CHEMISTRY REVIEWS
(2018)
Editorial Material
Environmental Sciences
Niladri Basu
ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY
(2018)
Article
Engineering, Chemical
Shaily et al.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2017)
Review
Environmental Sciences
Lei Zhang et al.
ATMOSPHERIC CHEMISTRY AND PHYSICS
(2016)
Article
Environmental Studies
Jessica Templeton et al.
REVIEW OF EUROPEAN COMPARATIVE & INTERNATIONAL ENVIRONMENTAL LAW
(2014)
Article
Chemistry, Applied
Xu Zhang et al.
Article
Chemistry, Analytical
Lakshmi Narayana Suvarapu et al.
REVIEWS IN ANALYTICAL CHEMISTRY
(2013)
Article
Environmental Sciences
J. Zysk et al.
ATMOSPHERIC ENVIRONMENT
(2011)
Review
Environmental Sciences
F. Sprovieri et al.
ATMOSPHERIC CHEMISTRY AND PHYSICS
(2010)
Article
Environmental Sciences
N. Pirrone et al.
ATMOSPHERIC CHEMISTRY AND PHYSICS
(2010)
Review
Biochemistry & Molecular Biology
Dylan W. Domaille et al.
NATURE CHEMICAL BIOLOGY
(2008)
