Microwave-Assisted One-Pot Synthesis of Indole-Based Fluorescent Probe for Sensitive Detection of Copper (II)

Yu-Chieh Wang; Che-Kai Wu; Jia-Lin Wang; Kwang-Ming Lee; Youn-Yuen Shu

doi:10.1007/s10895-019-02467-0

Microwave-Assisted One-Pot Synthesis of Indole-Based Fluorescent Probe for Sensitive Detection of Copper (II)

J Fluoresc. 2020 Jan;30(1):21-25. doi: 10.1007/s10895-019-02467-0. Epub 2019 Dec 14.

Authors

Yu-Chieh Wang^{1

2}, Che-Kai Wu¹, Jia-Lin Wang², Kwang-Ming Lee¹, Youn-Yuen Shu³

Affiliations

¹ Department of Chemistry National Kaohsiung Normal University, No. 62, Shenjhong Road, Yanchao, Kaohsiung City, 82444, Taiwan.
² Department of Chemistry National Central University, No.300, Zhongda Road., Zhongli, Taoyuan City, 32001, Taiwan.
³ Department of Chemistry National Kaohsiung Normal University, No. 62, Shenjhong Road, Yanchao, Kaohsiung City, 82444, Taiwan. shuyy@nknu.edu.tw.

PMID: 31838621
DOI: 10.1007/s10895-019-02467-0

Abstract

In this study, a rapid, inexpensive and convenient microwave assisted synthesis of indole-3-propionic acid-bisphenol A diglycidyl ether (IPA-SR3) fluorescent probe was developed. This fluorescent probe has the dual illumination characteristics of photoinduced electron transfer and aggregation-induced emission for the specific detection of Cu²⁺ ion in water. The wavelength-dependent photoluminescence behavior of the aggregated IPA-SR3 was highly selective (Ksv = 1.5 × 104 M^-1) and sensitive in Cu²⁺ ion detection, with a low limit of detection (2.9 μM). Therefore, it can be used to detect low-concentration Cu²⁺ in water samples. Details of the synthesis procedure and fluorescence characteristics are presented herein. Graphical Abstract.

Keywords: Biomimetic.; Cu2+ fluorescent probe.; IPA; Microwave-assisted one-pot synthesis.; SR3; Sensors..

Abstract

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