Two new indole derivatives as anion receptors for detecting fluoride ion

Liu, Xiuming; Zhao, Qiang; Li, Yue; Song, Wei‐Chao; Li, Yaping; Chang, Ze; Bu, Xian‐He

doi:10.1016/j.cclet.2013.06.032

Cited by 17 publications

(4 citation statements)

References 26 publications

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“…The limit of detection was calculated to be 65 nM. Notably, the limit of detection (65 nM) in the present study is much higher than those of the F – ion detection probe in the literature studies − (Figure b and Table S2).…”

Section: Results and Discussioncontrasting

confidence: 44%

Recyclable Magnetic Fluorescent Fe₃O₄@SiO₂ Core–Shell Nanoparticles Decorated with Carbon Dots for Fluoride Ion Removal

Lin

et al. 2021

ACS Appl. Nano Mater.

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Tremendous efforts have been dedicated to developing fluorescent probes with biocompatible and cyclic features. Challenges remain in terms of high toxicity, poor dispersity in aqueous solution, low efficiency, and high detection limit problems. Inspired by the low biotoxicity and high quantum yield of amine-modified carbon dots (NCDs) as well as the reversible binding between metal ions (Mn+ ions) and carbon dots, a fluorescent quenching receptor is created based on the mechanism of nonradiative electron transfer from NCDs to Mn+ ions. This fluorescent quenching receptor is coordinated on a mesoporous superparamagnetic Fe3O4@mSiO2 nanoparticle, which forms a probe structure of Fe3O4@mSiO2-SiCDs@DTPA-Mn+/NCDs. NCDs detach from metal ions and recover their fluorescence when the probe is placed in the environment to be detected. The concentration of fluoride ions (F– ions) in the environment could be determined by the fluorescence intensity of the detached NCDs. This novel nanoscale probe has recyclable performance and can be reused at least 6 times. The minimum detection limit is down to 65 nM with a wide linear response range of 1 to 25 μM. The ion removal capacity could be up to 21.4 mg/g. This nanoscale fluorescent probe can be used for sufficiently high-response F– ion detection and removal of the platform.

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Section: Results and Discussioncontrasting

confidence: 44%

Recyclable Magnetic Fluorescent Fe₃O₄@SiO₂ Core–Shell Nanoparticles Decorated with Carbon Dots for Fluoride Ion Removal

Lin

et al. 2021

ACS Appl. Nano Mater.

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“…Indole‐based fluorescent sensors have been widely synthesized to detect ions. Bi‐indole was used to combine with 6,7,9,10,17,18,20,21‐Octahydrodibenzo[b,k], diaminomaleonitrile and 1,2,3,4,5,6‐hexaaminobenzene respectively to detect F − with high selectivity. Cyanide could be detect by indole organic salt derivatives and colorimetric detected by three indole‐based fluorescent sensors .…”

Section: Introductionmentioning

confidence: 99%

A Study on the Interaction between New Indole Amide Compound and Aluminum(III) Ion

Chen

Jiang

et al. 2019

ChemistrySelect

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A new indole-based compound N-(pyridine-2-ylmethyl)-1Hindole-2-carboxamide (FL) which could selectively recognize Al 3 + had been designed, synthesized and evaluated. FL could detect Al 3 + with high sensitivity. The fluorescence intensity of FL-Al 3 + solution was linear dependence to the concentration of Al 3 + in the ranges from 0 to 5 μmol/L. The addition of Al 3 + caused quenching of fluorescence intensity and the limit of detection for Al 3 + was as low as 1.79 × 10 À 9 M. The binding ratio of FL-Al 3 + was obtained 3:2 by Job's plot and the binding constant was 9.37 × 10 5 . Moreover, FL had been successfully applied in real sample detection.[a] J.

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“…Colorimetric signaling like a direct naked-eye detectable color changing provides an easy to use sensor with high sensitivity and selectivity [1][2][3]. Most of the sensor-anion interactions are based on hydrogen bonding interaction and some of them are followed by sensor deprotonation [4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Chalcone Based Colorimetric Sensor for Anions: Experimental and TD-DFT Study

Fitriana¹,

Pranowo²,

Purwono³

2018

Indones. J. Chem.

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Two new indole derivatives as anion receptors for detecting fluoride ion

Cited by 17 publications

References 26 publications

Recyclable Magnetic Fluorescent Fe₃O₄@SiO₂ Core–Shell Nanoparticles Decorated with Carbon Dots for Fluoride Ion Removal

Recyclable Magnetic Fluorescent Fe₃O₄@SiO₂ Core–Shell Nanoparticles Decorated with Carbon Dots for Fluoride Ion Removal

A Study on the Interaction between New Indole Amide Compound and Aluminum(III) Ion

Chalcone Based Colorimetric Sensor for Anions: Experimental and TD-DFT Study

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Two new indole derivatives as anion receptors for detecting fluoride ion

Cited by 17 publications

References 26 publications

Recyclable Magnetic Fluorescent Fe3O4@SiO2 Core–Shell Nanoparticles Decorated with Carbon Dots for Fluoride Ion Removal

Recyclable Magnetic Fluorescent Fe3O4@SiO2 Core–Shell Nanoparticles Decorated with Carbon Dots for Fluoride Ion Removal

A Study on the Interaction between New Indole Amide Compound and Aluminum(III) Ion

Chalcone Based Colorimetric Sensor for Anions: Experimental and TD-DFT Study

Contact Info

Product

Resources

About

Recyclable Magnetic Fluorescent Fe₃O₄@SiO₂ Core–Shell Nanoparticles Decorated with Carbon Dots for Fluoride Ion Removal

Recyclable Magnetic Fluorescent Fe₃O₄@SiO₂ Core–Shell Nanoparticles Decorated with Carbon Dots for Fluoride Ion Removal