期刊
TALANTA
卷 116, 期 -, 页码 434-440出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.talanta.2013.07.020
关键词
Fluorescent probe; Recognition; Sulfide anion; Zinc ion
资金
- National Program on Key Basic Research Project of China (973 Program) [2012CB720603]
- National Science Foundation of China [21232005, 21001077]
- State Key Lab of Oral Diseases (Sichuan University) [SKLODSCUKF2012-02]
A coumarin-based multifunctional fluorescent sensor containing a di-2-picolylamine (DPA) moiety (1) was presented. Interestingly, this probe could similarly act as ON-OFF type fluorescent sensor for Co2+ and Cu2+, then in situ generated 1-Co(II) and 1-Cu(II) ensembles could further serve as OFF-ON type fluorescent sensors to achieve the discrimination of Zn2+ from Cd2+ and selective recognition of sulfide anion in aqueous solution via displacement approach, respectively. Specially, 1-Cu(II) could permeate the cell membrane and could be used in fluorescence imaging of S2- in living biological samples. These ON-OFF-ON type fluorescent sensors exhibited high selectivity and sensitivity towards the targets. (C) 2013 Elsevier B.V. All rights reserved.
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