A Selective Colorimetric and Fluorometric Chemosensor Based on Conjugated Polydiacetylenes for Cadmium Ion Detection

Thanh Chung Pham; Yong Kyun Kim; Jung Bin Park; Sumin Jeon; Juhyeon Ahn; Yubin Yim; Juyoung Yoon; Songyi Lee

doi:10.1002/cptc.201900165

A Selective Colorimetric and Fluorometric Chemosensor Based on Conjugated Polydiacetylenes for Cadmium Ion Detection

Thanh Chung Pham, Yong Kyun Kim, Jung Bin Park, Sumin Jeon, Juhyeon Ahn, Yubin Yim, Juyoung Yoon, Songyi Lee

Department of Chemistry & Nanoscience

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

42 Scopus citations

Abstract

In the current study, a polydiacetylene (PDA)-based sensor, derived from a chelidamic acid-picolylamine (CP)-substituted diacetylene monomer, displayed a selective colorimetric and fluorometric change in the presence of cadmium (Cd²⁺) at pH 7.4. The PDA−CP solutions showed a colorimetric change from blue to violet in response to various amounts of Cd²⁺. The chemosensor also showed a rapid fluorescence turn-on response and significant selectivity to Cd²⁺ compared with other metallic cations. The Cd²⁺-selective PDA-based sensor system facilitated the visual detection of Cd²⁺ in aqueous solution. The Cd²⁺ detection limit of PDA−CP was reduced to 1.85×10⁻⁵ M.

Original language	English
Pages (from-to)	1133-1137
Number of pages	5
Journal	ChemPhotoChem
Volume	3
Issue number	11
DOIs	https://doi.org/10.1002/cptc.201900165
State	Published - 1 Nov 2019

Bibliographical note

Publisher Copyright:
© 2019 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim

Keywords

Schiff bases
cadmium
chemosensors
colorimetric sensors
conjugated polymers

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10.1002/cptc.201900165

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title = "A Selective Colorimetric and Fluorometric Chemosensor Based on Conjugated Polydiacetylenes for Cadmium Ion Detection",

abstract = "In the current study, a polydiacetylene (PDA)-based sensor, derived from a chelidamic acid-picolylamine (CP)-substituted diacetylene monomer, displayed a selective colorimetric and fluorometric change in the presence of cadmium (Cd2+) at pH 7.4. The PDA−CP solutions showed a colorimetric change from blue to violet in response to various amounts of Cd2+. The chemosensor also showed a rapid fluorescence turn-on response and significant selectivity to Cd2+ compared with other metallic cations. The Cd2+-selective PDA-based sensor system facilitated the visual detection of Cd2+ in aqueous solution. The Cd2+ detection limit of PDA−CP was reduced to 1.85×10−5 M.",

keywords = "Schiff bases, cadmium, chemosensors, colorimetric sensors, conjugated polymers",

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doi = "10.1002/cptc.201900165",

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AU - Pham, Thanh Chung

AU - Kim, Yong Kyun

AU - Park, Jung Bin

AU - Jeon, Sumin

AU - Ahn, Juhyeon

AU - Yim, Yubin

AU - Yoon, Juyoung

AU - Lee, Songyi

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KW - Schiff bases

KW - cadmium

KW - chemosensors

KW - colorimetric sensors

KW - conjugated polymers

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A Selective Colorimetric and Fluorometric Chemosensor Based on Conjugated Polydiacetylenes for Cadmium Ion Detection

Abstract

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Keywords

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