A Highly Efficient BODIPY Based Turn-off Fluorescent Probe for Detecting Cu2

• Published in: Journal of fluorescence Vol. 30; no. 4; pp. 883 - 890
• Main Authors: Sun, Ruopei, Wang, Lusheng, Jiang, Chao, Du, Ziyao, Chen, Suwen, Wu, Wangsuo
• Format: Journal Article
• Language: English
• Published: New York Springer US 01.07.2020; Springer Nature B.V
• Subjects: Analytical Chemistry; Benzamide; Biochemistry; Biological and Medical Physics; Biomedical and Life Sciences; Biomedicine; Biophysics; Biotechnology; Boron; Chemical synthesis; Copper; Emission spectra; Environmental monitoring; Fluorescent indicators; Linearity; Original Article; Water sampling; BODIPY; Cu; Fluorescent probe; Copper ion detection
• ISSN: 1053-0509; 1573-4994; 1573-4994
• DOI: 10.1007/s10895-020-02544-9

Based on boron-dipyrromethene (BODIPY), taking 2-hydroxy-N-(2-hydroxyphenyl)benzamide as recognition site, a new fluorescent probe HHPBA-BODIPY aimed at sensitively detecting Cu ions was designed, synthesized and characterized.The emission spectra of HHPBA-BODIPY exhibited an intensive green fluorescence around 510 nm, with a maximum absorption near 500 nm. When Cu 2+ ions are present, the fluorescence at 510 nm can be quenched with a good linearity between the copper ion concentrationand the fluorescence intensity and the detection limit is 0.35 μM. HHPBA-BODIPY is also selective toward Cu 2+ , while other metal ions show no interfere except Fe 3+ and Cr 3+ ions. In addition, HHPBA-BODIPY also proved efficient to detect Cu 2+ in water samples which offers the possibility to detect trace amount of Cu 2+ for environmental monitoring. Copper ions; BODIPY; fluorescent probe.