Histidine–dialkoxyanthracene dyad for selective and sensitive detection of mercury ions

Sachin Patil; Widad Belhajjame; Basem Moosa; Niveen M. Khashab

doi:10.1080/10610278.2017.1412438

Histidine–dialkoxyanthracene dyad for selective and sensitive detection of mercury ions

Sachin Patil, Widad Belhajjame, Basem Moosa, Niveen M. Khashab

Research output: Contribution to journal › Article › peer-review

Abstract

Histidine-dialkoxyanthracene (HDA) was synthesised as a turn off type fluorescent sensor for fast and sensitive detection of mercury ions (Hg2+) in aqueous media. The two histidine moieties act as ‘claws’ to selectively complex Hg2+. The binding ratio of HDA to Hg2+ was 1:1 (metal-to-ligand ratio). The association constant for Hg2+ towards the receptor HDA obtained from Benesi–Hildebrand plot was found to be 3.22 × 104 M−1 with detection limit as low as 4.7 nM (0.94 μg/L).

Original language	English (US)
Pages (from-to)	345-350
Number of pages	6
Journal	Supramolecular Chemistry
Volume	30
Issue number	4
DOIs	https://doi.org/10.1080/10610278.2017.1412438
State	Published - Dec 17 2017

Bibliographical note

KAUST Repository Item: Exported on 2021-01-19
Acknowledgements: This work was supported by the King Abdullah University of Science and Technology (KAUST).

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10.1080/10610278.2017.1412438

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title = "Histidine–dialkoxyanthracene dyad for selective and sensitive detection of mercury ions",

abstract = "Histidine-dialkoxyanthracene (HDA) was synthesised as a turn off type fluorescent sensor for fast and sensitive detection of mercury ions (Hg2+) in aqueous media. The two histidine moieties act as {\textquoteleft}claws{\textquoteright} to selectively complex Hg2+. The binding ratio of HDA to Hg2+ was 1:1 (metal-to-ligand ratio). The association constant for Hg2+ towards the receptor HDA obtained from Benesi–Hildebrand plot was found to be 3.22 × 104 M−1 with detection limit as low as 4.7 nM (0.94 μg/L).",

author = "Sachin Patil and Widad Belhajjame and Basem Moosa and Khashab, {Niveen M.}",

note = "KAUST Repository Item: Exported on 2021-01-19 Acknowledgements: This work was supported by the King Abdullah University of Science and Technology (KAUST).",

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AU - Patil, Sachin

AU - Belhajjame, Widad

AU - Moosa, Basem

AU - Khashab, Niveen M.

N1 - KAUST Repository Item: Exported on 2021-01-19 Acknowledgements: This work was supported by the King Abdullah University of Science and Technology (KAUST).

PY - 2017/12/17

Y1 - 2017/12/17

N2 - Histidine-dialkoxyanthracene (HDA) was synthesised as a turn off type fluorescent sensor for fast and sensitive detection of mercury ions (Hg2+) in aqueous media. The two histidine moieties act as ‘claws’ to selectively complex Hg2+. The binding ratio of HDA to Hg2+ was 1:1 (metal-to-ligand ratio). The association constant for Hg2+ towards the receptor HDA obtained from Benesi–Hildebrand plot was found to be 3.22 × 104 M−1 with detection limit as low as 4.7 nM (0.94 μg/L).

AB - Histidine-dialkoxyanthracene (HDA) was synthesised as a turn off type fluorescent sensor for fast and sensitive detection of mercury ions (Hg2+) in aqueous media. The two histidine moieties act as ‘claws’ to selectively complex Hg2+. The binding ratio of HDA to Hg2+ was 1:1 (metal-to-ligand ratio). The association constant for Hg2+ towards the receptor HDA obtained from Benesi–Hildebrand plot was found to be 3.22 × 104 M−1 with detection limit as low as 4.7 nM (0.94 μg/L).

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DO - 10.1080/10610278.2017.1412438

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JO - Supramolecular Chemistry

JF - Supramolecular Chemistry

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Histidine–dialkoxyanthracene dyad for selective and sensitive detection of mercury ions

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