A novel conjugated polymer fluorescence probe for the detection of copper ions in aqueous media. (1st January 2023)

• Record Type: Journal Article
• Authors: Gong, Lindan; Zhang, Lixiao; Shen, Rui; Zhang, Lin; Wang, Hengyuan; Fan, Lu-an
• Is Part Of: Methods and applications in fluorescence. Volume 11:Number 1(2023)
• Publication Date: 2023-01-01
• Subjects: Cu2+ probe -- conjugated polymer -- fluorene -- Schiff base -- fluorescence; Fluorescence spectroscopy -- Periodicals; Fluorescence -- Periodicals; Spectrometry, Fluorescence -- Periodicals; Fluorescence -- Periodicals; Fluorescence; Fluorescence spectroscopy; Periodicals; 535.352
• DOI: 10.1088/2050-6120/ac9fa6
• Languages: English
• ISSNs: 2050-6120

Abstract

Abstract: A novel ionic conjugated polymer fluorescent probe (IP ) containing fluorenyls and imines was synthesized through a simple condensation method for the rapid detection of Cu 2+ . The probe exhibited a selective quenching response toward Cu 2+ over other common metal ions in phosphate-buffered saline (PBS) at a pH of 7. Moreover, the fluorescence intensity of IP was linearly proportional to the concentration of Cu 2+ when it ranged from 1 to 10 μ M, and the limit of detection for Cu 2+ was 0.45 μ M. Furthermore, the quenched fluorescence of IP by Cu 2+ was recovered after adding amino acids or ethylenediaminetetraacetic acid (EDTA), indicating that the probe could be recycled and is promising to reduce the detection cost of Cu 2+ in real samples.