Fluorescence sensor for sequential detection of zinc and phosphate ions

Miran An; Bo Yeon Kim; Hansol Seo; Aasif Helal; Hong Seok Kim

doi:10.1016/j.saa.2016.06.026

Fluorescence sensor for sequential detection of zinc and phosphate ions

Miran An, Bo Yeon Kim, Hansol Seo, Aasif Helal^*, Hong Seok Kim

^*Corresponding author for this work

Interdisciplinary Research Center for Hydrogen Technologies and Carbon Management

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

66 Scopus citations

Abstract

A new, highly selective turn-on fluorescent chemosensor based on 2-(2′-tosylamidophenyl)thiazole (1) for the detection of zinc and phosphate ions in ethanol was synthesized and characterized. Sensor 1 showed a high selectivity for zinc compared to other cations and sequentially detected hydrogen pyrophosphate and hydrogen phosphate. The fluorescence mechanism can be explained by two different mechanisms: (i) the inhibition of excited-state intramolecular proton transfer (ESIPT) and (ii) chelation-induced enhanced fluorescence by binding with Zn^2 +. The sequential detection of phosphate anions was achieved by the quenching and subsequent revival of ESIPT.

Original language	English
Pages (from-to)	87-94
Number of pages	8
Journal	Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy
Volume	169
DOIs	https://doi.org/10.1016/j.saa.2016.06.026
State	Published - 5 Dec 2016

Bibliographical note

Publisher Copyright:
© 2016 Elsevier B.V.

Keywords

Fluorogenic chemosensor
Phosphate
Sequential recognition
Thiazole sulfonamide
Zinc

ASJC Scopus subject areas

Analytical Chemistry
Atomic and Molecular Physics, and Optics
Instrumentation
Spectroscopy

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title = "Fluorescence sensor for sequential detection of zinc and phosphate ions",

abstract = "A new, highly selective turn-on fluorescent chemosensor based on 2-(2′-tosylamidophenyl)thiazole (1) for the detection of zinc and phosphate ions in ethanol was synthesized and characterized. Sensor 1 showed a high selectivity for zinc compared to other cations and sequentially detected hydrogen pyrophosphate and hydrogen phosphate. The fluorescence mechanism can be explained by two different mechanisms: (i) the inhibition of excited-state intramolecular proton transfer (ESIPT) and (ii) chelation-induced enhanced fluorescence by binding with Zn2 +. The sequential detection of phosphate anions was achieved by the quenching and subsequent revival of ESIPT.",

keywords = "Fluorogenic chemosensor, Phosphate, Sequential recognition, Thiazole sulfonamide, Zinc",

author = "Miran An and Kim, \{Bo Yeon\} and Hansol Seo and Aasif Helal and Kim, \{Hong Seok\}",

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year = "2016",

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doi = "10.1016/j.saa.2016.06.026",

language = "English",

volume = "169",

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journal = "Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy",

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T1 - Fluorescence sensor for sequential detection of zinc and phosphate ions

AU - An, Miran

AU - Kim, Bo Yeon

AU - Seo, Hansol

AU - Helal, Aasif

AU - Kim, Hong Seok

PY - 2016/12/5

Y1 - 2016/12/5

N2 - A new, highly selective turn-on fluorescent chemosensor based on 2-(2′-tosylamidophenyl)thiazole (1) for the detection of zinc and phosphate ions in ethanol was synthesized and characterized. Sensor 1 showed a high selectivity for zinc compared to other cations and sequentially detected hydrogen pyrophosphate and hydrogen phosphate. The fluorescence mechanism can be explained by two different mechanisms: (i) the inhibition of excited-state intramolecular proton transfer (ESIPT) and (ii) chelation-induced enhanced fluorescence by binding with Zn2 +. The sequential detection of phosphate anions was achieved by the quenching and subsequent revival of ESIPT.

AB - A new, highly selective turn-on fluorescent chemosensor based on 2-(2′-tosylamidophenyl)thiazole (1) for the detection of zinc and phosphate ions in ethanol was synthesized and characterized. Sensor 1 showed a high selectivity for zinc compared to other cations and sequentially detected hydrogen pyrophosphate and hydrogen phosphate. The fluorescence mechanism can be explained by two different mechanisms: (i) the inhibition of excited-state intramolecular proton transfer (ESIPT) and (ii) chelation-induced enhanced fluorescence by binding with Zn2 +. The sequential detection of phosphate anions was achieved by the quenching and subsequent revival of ESIPT.

KW - Fluorogenic chemosensor

KW - Phosphate

KW - Sequential recognition

KW - Thiazole sulfonamide

KW - Zinc

UR - https://www.scopus.com/pages/publications/84975815531

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DO - 10.1016/j.saa.2016.06.026

M3 - Article

AN - SCOPUS:84975815531

SN - 1386-1425

VL - 169

SP - 87

EP - 94

JO - Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy

JF - Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy

ER -

Fluorescence sensor for sequential detection of zinc and phosphate ions

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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