A fluorescent chemosensor for relay recognition of Fe3+ and PO43− in aqueous solution and its applications. Issue 34 (24th August 2017)

• Record Type: Journal Article
• Authors: Liu, Renjie; Tang, Xu; Wang, Yun; Han, Juan; Zhang, Huiqin; Li, Chen; Zhang, Wenli; Ni, Liang; Li, Haoran
• Is Part Of: Tetrahedron. Volume 73:Issue 34(2017)
• Page Start: 5229
• Page End: 5238
• Publication Date: 2017-08-24
• Subjects: Fluorescent probe -- Ferri ion -- PO43− -- Relay recognition -- Cell imaging; Chemistry, Organic -- Periodicals; 547.005
• DOI: 10.1016/j.tet.2017.07.018
• Languages: English
• ISSNs: 0040-4020

Abstract

Abstract: A novel fluorescent probe XDS based on 4-methylumbelliferone and 2-picolylamine platforms has been designed and synthesized, which behaves fast relay recognition of Fe 3+ and PO4 3− via a fluorescence "on−off−on" response signal. Probe XDS exhibited very high sensitivity and unique selectivity for Fe 3+ over other common metal ions, and the detection limit of was 3.2 × 10 −7 M. Moreover, the addition of the PO4 3− ions could cause the recovery of fluorescence. This relay recognition feature of probe XDS has potential applications in the determination of trace amount of Fe 3+ and PO4 3− in environmental systems. Interestingly, fluorescence imaging experiments demonstrated that the probe XDS can also be used to monitoring the intracellular Fe 3+ in RAMOS cells. Graphical abstract: Highlights: A novel fluorescence probe with simple structure for relay recognition of Fe 3+ and PO4 3− was synthesized. The proposed method exhibited high selectivity and sensitivity, short respond time, low detection limit. The fluorescence probe can also be used for biological cell imaging.