An Acylhydrazone-Based Fluorescent Sensor for Sequential Recognition of Al3+ and H2PO4−

A novel acylhydrazone-based fluorescent sensor NATB was designed and synthesized for consecutive sensing of Al3+ and H2PO4−. NATB displayed fluorometric sensing to Al<...

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Autores principales:	Donghwan Choe, Cheal Kim
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	aluminum ion dihydrogen phosphate acylhydrazone fluorescent chemosensor sequential detection calculations Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
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spelling	oai:doaj.org-article:e2716ee65bf348ddbe27385fcc1481da2021-11-11T17:58:24ZAn Acylhydrazone-Based Fluorescent Sensor for Sequential Recognition of Al<sup>3+</sup> and H<sub>2</sub>PO<sub>4</sub><sup>−</sup>10.3390/ma142163921996-1944https://doaj.org/article/e2716ee65bf348ddbe27385fcc1481da2021-10-01T00:00:00Zhttps://www.mdpi.com/1996-1944/14/21/6392https://doaj.org/toc/1996-1944A novel acylhydrazone-based fluorescent sensor <b>NATB</b> was designed and synthesized for consecutive sensing of Al<sup>3+</sup> and H<sub>2</sub>PO<sub>4</sub><sup>−</sup>. <b>NATB</b> displayed fluorometric sensing to Al<sup>3+</sup> and could sequentially detect H<sub>2</sub>PO<sub>4</sub><sup>−</sup> by fluorescence quenching. The limits of detection for Al<sup>3+</sup> and H<sub>2</sub>PO<sub>4</sub><sup>−</sup> were determined to be 0.83 and 1.7 μM, respectively. The binding ratios of <b>NATB</b> to Al<sup>3+</sup> and <b>NATB</b>-Al<sup>3+</sup> to H<sub>2</sub>PO<sub>4</sub><sup>−</sup> were found to be 1:1. The sequential recognition of Al<sup>3+</sup> and H<sub>2</sub>PO<sub>4</sub><sup>−</sup> by <b>NATB</b> could be repeated consecutively. In addition, the practicality of <b>NATB</b> was confirmed with the application of test strips. The sensing mechanisms of Al<sup>3+</sup> and H<sub>2</sub>PO<sub>4</sub><sup>−</sup> by <b>NATB</b> were investigated through fluorescence and UV–Visible spectroscopy, Job plot, ESI-MS, <sup>1</sup>H NMR titration, and DFT calculations.Donghwan ChoeCheal KimMDPI AGarticlealuminum iondihydrogen phosphateacylhydrazonefluorescent chemosensorsequential detectioncalculationsTechnologyTElectrical engineering. Electronics. Nuclear engineeringTK1-9971Engineering (General). Civil engineering (General)TA1-2040MicroscopyQH201-278.5Descriptive and experimental mechanicsQC120-168.85ENMaterials, Vol 14, Iss 6392, p 6392 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	aluminum ion dihydrogen phosphate acylhydrazone fluorescent chemosensor sequential detection calculations Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
spellingShingle	aluminum ion dihydrogen phosphate acylhydrazone fluorescent chemosensor sequential detection calculations Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85 Donghwan Choe Cheal Kim An Acylhydrazone-Based Fluorescent Sensor for Sequential Recognition of Al<sup>3+</sup> and H<sub>2</sub>PO<sub>4</sub><sup>−</sup>
description	A novel acylhydrazone-based fluorescent sensor <b>NATB</b> was designed and synthesized for consecutive sensing of Al<sup>3+</sup> and H<sub>2</sub>PO<sub>4</sub><sup>−</sup>. <b>NATB</b> displayed fluorometric sensing to Al<sup>3+</sup> and could sequentially detect H<sub>2</sub>PO<sub>4</sub><sup>−</sup> by fluorescence quenching. The limits of detection for Al<sup>3+</sup> and H<sub>2</sub>PO<sub>4</sub><sup>−</sup> were determined to be 0.83 and 1.7 μM, respectively. The binding ratios of <b>NATB</b> to Al<sup>3+</sup> and <b>NATB</b>-Al<sup>3+</sup> to H<sub>2</sub>PO<sub>4</sub><sup>−</sup> were found to be 1:1. The sequential recognition of Al<sup>3+</sup> and H<sub>2</sub>PO<sub>4</sub><sup>−</sup> by <b>NATB</b> could be repeated consecutively. In addition, the practicality of <b>NATB</b> was confirmed with the application of test strips. The sensing mechanisms of Al<sup>3+</sup> and H<sub>2</sub>PO<sub>4</sub><sup>−</sup> by <b>NATB</b> were investigated through fluorescence and UV–Visible spectroscopy, Job plot, ESI-MS, <sup>1</sup>H NMR titration, and DFT calculations.
format	article
author	Donghwan Choe Cheal Kim
author_facet	Donghwan Choe Cheal Kim
author_sort	Donghwan Choe
title	An Acylhydrazone-Based Fluorescent Sensor for Sequential Recognition of Al<sup>3+</sup> and H<sub>2</sub>PO<sub>4</sub><sup>−</sup>
title_short	An Acylhydrazone-Based Fluorescent Sensor for Sequential Recognition of Al<sup>3+</sup> and H<sub>2</sub>PO<sub>4</sub><sup>−</sup>
title_full	An Acylhydrazone-Based Fluorescent Sensor for Sequential Recognition of Al<sup>3+</sup> and H<sub>2</sub>PO<sub>4</sub><sup>−</sup>
title_fullStr	An Acylhydrazone-Based Fluorescent Sensor for Sequential Recognition of Al<sup>3+</sup> and H<sub>2</sub>PO<sub>4</sub><sup>−</sup>
title_full_unstemmed	An Acylhydrazone-Based Fluorescent Sensor for Sequential Recognition of Al<sup>3+</sup> and H<sub>2</sub>PO<sub>4</sub><sup>−</sup>
title_sort	acylhydrazone-based fluorescent sensor for sequential recognition of al<sup>3+</sup> and h<sub>2</sub>po<sub>4</sub><sup>−</sup>
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/e2716ee65bf348ddbe27385fcc1481da
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An Acylhydrazone-Based Fluorescent Sensor for Sequential Recognition of Al<sup>3+</sup> and H<sub>2</sub>PO<sub>4</sub><sup>−</sup>

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