Hydrazone Based Dual – Responsive Colorimetric and Ratiometric Chemosensor for the Detection of Cu2+/F− Ions: DNA Tracking, Practical Performance in Environmental Samples and Tooth Paste

Durai, Willsingh Anbu; Ramu, A.

doi:10.1007/s10895-020-02488-0

Cited by 23 publications

(3 citation statements)

References 77 publications

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“…1,2 Among the anions, the essential micronutrient F À is a trace element present in the body, which helps to care for teeth, build dental enamel and inhibit osteoporosis. [3][4][5][6][7][8][9] However, excess F À causes various troubles, including skeletal fluorosis, kidney disease and acute gastrointestinal disorders. [10][11][12][13] Therefore, it is very important to develop an analytical method that effectively detects fluoride.…”

Section: Introductionmentioning

confidence: 99%

“…Anions play a pivotal role in diverse kinds of biological and chemical processes 1,2 . Among the anions, the essential micronutrient F − is a trace element present in the body, which helps to care for teeth, build dental enamel and inhibit osteoporosis 3–9 . However, excess F − causes various troubles, including skeletal fluorosis, kidney disease and acute gastrointestinal disorders 10–13 .…”

Section: Introductionmentioning

confidence: 99%

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Fluoride detection with a colorimetric and fluorescent dual‐mode chemosensor

Song

Gil

Lee

et al. 2022

Coloration Technology

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We designed a colorimetric and fluorescent dual-mode chemosensor ADM ((E)-2-(((2-amino-4,5-dichlorophenyl)imino)methyl)-6-methoxyphenol) for detecting fluoride (F À ). The sensor ADM can detect F À by colour and fluorescence changes. The colour change is from colourless to yellow, and the fluorescence change is a yellow turn-on. With the results of Job plot and electrospray ionisation mass spectrometry, the reaction of F À and ADM turned out to be a 1:1 binding. The detection limits for F À of ADM were 5.00 μM in ultraviolet-visible and 4.16 μM in fluorescence. The detecting process of F À by ADM was demonstrated by ultraviolet-visible and fluorescent titrations, electrospray ionisation mass spectrometry, proton nuclear magnetic resonance titration and theoretical calculations.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Fluoride detection with a colorimetric and fluorescent dual‐mode chemosensor

Song

Gil

Lee

et al. 2022

Coloration Technology

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“…[22] At the same year, Willsingh Anbu Durai and Andy Ramu reported a colorimetric method that hydrazone based dual-responsive ratiometric/colorimetric chemosensor for highly selective and sensitive detection of Cu 2+ ions in dimethyl sulfoxide (DMSO) solvent, the detection limits are found to be 5.8 μM. [23] In a word, colorimetric detection of Cu 2+ usually leads to the change of probe absorbance directly or indirectly through coordination. Therefore, it is of great significance to develop signal molecules that can strongly coordinate with Cu 2+ and cause strong changes in absorbance or other properties (such as enzyme activity) of the detection system.…”

Section: Introductionmentioning

confidence: 99%

A Facile Colorimetric Method For Ultra-Rapid And Sensitive Detection of Copper Ions In Water

Chen

Sun

et al. 2021

Preprint

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It is of great meaning to develop a facile, reliable and sensitive method to detect copper ions in water. In the study, a facile method has been developed for rapid and sensitive detection of Cu2+. An interesting phenomenon has been observed that 3,3',5,5'-tetramethylbenzidine (TMB) ethanol solution can be extremely fast passed from colorless to yellow once Cu2+ ions are added. It easily occurs to us that Cu2+ can be quantitatively determined via the absorbance at 904 nm of the color changed TMB solution. More importantly, some specific anions (Cl- , Br- ) can significantly enhance the absorption intensity. Under the optimized experimental conditions, this method exhibits a good linear response range for Cu2+ from 0.5 to 100 μM, with the detection limit of 93 nM. Moreover, the possible detection principle has been explored. It is worth mentioning that the color change can be clearly observed by naked eyes for the detection of 1 μM Cu2+, which is far below the threshold limit of Cu2+ in drinking water suggested by World Health Organization. It means that this method possess great promise for on-site Cu2+ detection.

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Development of Colorimetric and Turn‐On Fluorescence Sensor for the Detection of Al³⁺ and F⁻ Ions: DNA Tracking and Practical Performance as Applications

Durai

Ramu

2020

ChemistrySelect

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In this study, a new probe is designed (E)-1-(((5-mercapto-1,3,4thiadiazol-2-yl)imino)methyl)naphthalen-2-ol (NAATD) for dual colorimetric and turn-on fluorescence chemosensor. Higher selectivity and sensitivity towards Al 3 + /F À ions over other competitive ions in DMSO solution were achieved. The detection limits were found to be 3.14 nM and 9.9 nM for Al 3 + and F À ions respectively. The sensing mechanism and stoichio-metric ratio is investigated and affirmed by DFT calculations and Job's plot analysis respectively. The DNA tracking ability of the NAATD-Al 3 + is investigated by fluorescence technique which indicates that DNA efficiently bind with the probe and displace Al 3 + ions. Finally, the practical utility of the probe was successfully demonstrated by using environmental water and tooth paste samples.[a] W.

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Hydrazone Based Dual – Responsive Colorimetric and Ratiometric Chemosensor for the Detection of Cu2+/F− Ions: DNA Tracking, Practical Performance in Environmental Samples and Tooth Paste

Cited by 23 publications

References 77 publications

Fluoride detection with a colorimetric and fluorescent dual‐mode chemosensor

Fluoride detection with a colorimetric and fluorescent dual‐mode chemosensor

A Facile Colorimetric Method For Ultra-Rapid And Sensitive Detection of Copper Ions In Water

Development of Colorimetric and Turn‐On Fluorescence Sensor for the Detection of Al³⁺ and F⁻ Ions: DNA Tracking and Practical Performance as Applications

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Hydrazone Based Dual – Responsive Colorimetric and Ratiometric Chemosensor for the Detection of Cu2+/F− Ions: DNA Tracking, Practical Performance in Environmental Samples and Tooth Paste

Cited by 23 publications

References 77 publications

Fluoride detection with a colorimetric and fluorescent dual‐mode chemosensor

Fluoride detection with a colorimetric and fluorescent dual‐mode chemosensor

A Facile Colorimetric Method For Ultra-Rapid And Sensitive Detection of Copper Ions In Water

Development of Colorimetric and Turn‐On Fluorescence Sensor for the Detection of Al3+ and F− Ions: DNA Tracking and Practical Performance as Applications

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Product

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Development of Colorimetric and Turn‐On Fluorescence Sensor for the Detection of Al³⁺ and F⁻ Ions: DNA Tracking and Practical Performance as Applications