A turn-on fluorescent BOPHY probe for Cu2+ ion detection. (22nd January 2018)

• Record Type: Journal Article
• Authors: He, Chunhua; Zhou, Huipeng; Yang, Na; Niu, Niu; Hussain, Ejaz; Li, Yongxin; Yu, Cong
• Is Part Of: New journal of chemistry. Volume 42:Number 4(2018)
• Page Start: 2520
• Page End: 2525
• Publication Date: 2018-01-22
• Subjects: Chemistry -- Periodicals; Chimie -- Périodiques; 540
• DOI: 10.1039/c7nj03911e
• Languages: English
• ISSNs: 1144-0546

Abstract

Abstract : A novel D–π–A type fluorine–boron compoundBOPHY-PTZ was synthesized and employed as a "turn on" fluorescent probe for the sensitive detection of Cu 2+ ions. Abstract : A new fluorine–boron compoundBOPHY-PTZ was designed and synthesized. The fluorescent dye was used as a highly sensitive probe for Cu 2+ ion detection. The mechanism of detection involved Cu 2+ ion oxidation of the phenothiazine (PTZ) moiety and blocked the intramolecular charge transfer (ICT) process from the electron-donating PTZ moiety to the electron-accepting BOPHY moiety.BOPHY-PTZ showed a weak fluorescence in solution. However, it displayed a strong fluorescence signal enhancement upon the addition of Cu 2+ ions, and 1.0 nM concentration of Cu 2+ can be clearly detected. The assay is simple, sensitive and convenient, and it exhibits excellent selectivity for Cu 2+ ions over the other metal ions. TheBOPHY-PTZ probe could be used for Cu 2+ ion detection in practical samples and for environmental monitoring related applications.