A NBD-based selective colorimetric and fluorescent chemosensor for Hg2+

Kim, Jin Hoon; Noh, Jin Young; Hwang, In Hong; Lee, Jae Jun; Kim, Cheal

doi:10.1016/j.tetlet.2013.05.074

Cited by 38 publications

(19 citation statements)

References 57 publications

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“…The detection limit of receptor R 1 with Pb 2+ is 0.26 × 10 ‐6 mol l −1 , R 1 with Hg 2+ is 0.28 × 10 −6 mol l −1 , R 2 with Hg 2+ is 0.18 × 10 −6 mol L −1 , and R 2 with Cu 2+ is 0.29 × 10 −6 mol L −1 . Detection limit of R 1 and R 2 was compared with some reported chemosensors for Cu 2+ , Hg 2+ , and Pb 2+ (Table ) (Ranyuk et al ., ; Jiang et al ., ; Huo et al ., ; Kim et al ., ; Leea et al ., ; Lin et al ., ; Tang et al ., ; Wang et al ., ). While each chemosensor showed some advantages such as easy synthesis, high sensitivity, no interference (Ranyuk et al ., ; Kim et al ., ; Lin et al ., ) naked eye detection and application in living cell imaging.…”

Section: Resultsmentioning

confidence: 99%

“…Detection limit of R1 and R2 was compared with some reported chemosensors for Cu 2+ , Hg 2+ , and Pb 2+ (Table 3) (Ranyuk et al, 2009;Jiang et al, 2011;Huo et al, 2013;Kim et al, 2013;Leea et al, 2013;Lin et al, 2013;Tang et al, 2013;Wang et al, 2013). While each chemosensor showed some advantages such as easy synthesis, high sensitivity, no interference (Ranyuk et al, 2009;Kim et al, 2013;Lin et al, 2013) naked eye detection and application in living cell imaging. Our receptor R1 and R2 exhibited quite appealing analytical features such as easy synthesis, dual sensing methods (naked eye and fluorescence detection), and simultaneous multiple cation sensing (R1 = Cu 2+ , Hg 2+ , R2 = Hg 2+ , Pb 2+ , and Sn 2+ ).…”

Section: Fluorescence Spectroscopic Studiesmentioning

confidence: 99%

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Naked eye sensing of toxic metal ions in aqueous medium using thiophene‐based ligands and its application in living cells

Udhayakumari

Suganya

Velmathi

et al. 2014

J of Molecular Recognition

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Thiophene-based diimine (R1) and monoimine (R2) were synthesized in a single step, and their cation binding affinity was tested using colorimetric and UV-vis spectral studies. R1 selectively shows a colorimetric turn-on response for Pb(2+), Hg(2+) ions and colorimetric turn-off with Sn(2+) ions, and R2 shows visual response for Cu(2+) and Hg(2+) over other examined metal ions in aqueous medium. R1 forms 1:1 complex with Pb(2+), Hg(2+), and Sn(2+) and exhibits fluorescence quenching, whereas R2 shows 2:1 complex with Hg(2+), Cu(2+) and shows fluorescence enhancement. The structural and electronic properties of the sensors and their metal complexes were also investigated using Density Functional Theory calculations. R2 was also successfully demonstrated as a fluorescent probe for detecting Cu(2+) ions in living cells.

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Section: Resultsmentioning

confidence: 99%

Section: Fluorescence Spectroscopic Studiesmentioning

confidence: 99%

Naked eye sensing of toxic metal ions in aqueous medium using thiophene‐based ligands and its application in living cells

Udhayakumari

Suganya

Velmathi

et al. 2014

J of Molecular Recognition

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“…Proposed sensing mechanism of 94 and 95 towards Hg 2+ 111,112. Proposed sensing mechanism of 94 and 95 towards Hg 2+ 111,112.…”

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confidence: 99%

Fluorescent and colorimetric sensors for environmental mercury detection

Chen

Guo

Zeng

et al. 2015

Analyst

300

134

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Exposure to mercury ions can damage the human brain, the nervous system, the endocrine system, and other biological systems. Much effort has therefore been made to develop real-time monitoring of mercury variations, and many mercury-ion sensors have been reported recently. In this review, mercury-ion sensors reported since 2008 are described and discussed. The sensors are classified as molecular, nanomaterial based, and others. Molecular sensors are based on chemical and hydrogen bond formation, and the other types are based on changes in the materials used.

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“…Recently, several molecular probe-based sensors using organic chromophores, quantum dots (QDs), small fluorescent organic molecules, proteins, antibodies and conjugated polymers coupled with several spectrometric and electrochemical techniques are reported for mercury(II) determination [36][37][38][39][40][41][42][43][44][45][46][47][48][49][50][51][52][53]. Some of these methods suffere from solubility issues, low stability, lower sensitivity and selectivity, complicated synthesis procedures and environmentally unfriendliness to monitor mercury(II) in biological and environmental samples.…”

Section: Introductionmentioning

confidence: 99%

A Simple and Highly Structured Procaine Hydrochloride as Fluorescent Quenching Chemosensor for Trace Determination of Mercury Species in Water

Al‐Eryani¹,

Ahmad²,

Saigl³

et al. 2018

Trace Elements - Human Health and Environment

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An ultrasensitive, simple and highly selective spectrofluorometric strategy for quantifying traces of mercury(II) in environmental water has been established using the fluorescent probe procaine hydrochloride (PQ + .Cl −). The procedure was based upon the formation of the ternary ion associate complex [(PQ +) 2 .(HgI 4) 2− ] between PQ + .Cl − and mercury(II) in iodide media at pH 9.0-10.0 with its subsequent extraction onto dichloromethane accompanied by a change in fluorescence intensity at λ ex/em = 268/333 nm. The developed strategy exhibited a linear range of 1-114 μg L −1 with lower limit of detection (LOD) and quantification (LOQ) of mercury(II) 1.3 and 3.98 nM, respectively. Intra and inter-day laboratory accuracy and precision for trace analysis of mercury(II) in water were performed. Complexed mercury(II) in environmental water, chemical speciation and successful literature comparison was performed. The proposed system offered excellent selectivity towards mercury(II) ions examined in the presence of competent ions in excess, relevant to real water samples. The method was applied for analysis of mercury(II) in tap water samples. Statistical comparison (Student's t and F tests) of the proposed method with the reference ICP-OES method revealed no significant differences in the accuracy and precision.

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A NBD-based selective colorimetric and fluorescent chemosensor for Hg2+

Cited by 38 publications

References 57 publications

Naked eye sensing of toxic metal ions in aqueous medium using thiophene‐based ligands and its application in living cells

Naked eye sensing of toxic metal ions in aqueous medium using thiophene‐based ligands and its application in living cells

Fluorescent and colorimetric sensors for environmental mercury detection

A Simple and Highly Structured Procaine Hydrochloride as Fluorescent Quenching Chemosensor for Trace Determination of Mercury Species in Water

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