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- Title
A Dansyl-Rhodamine Based Fluorescent Probe for Detection of Hg<sup>2+</sup> and Cu<sup>2+</sup>.
- Authors
Shizhuang Yuan; Wei Su; Enju Wang
- Abstract
A novel fluorescent probe based on dansyl-appended rhodamine B was developed. The probe can selectively recognize and sense Hg2+ and Cu2+ from other common metal ions by showing unique fluorescence and absorption characteristics. In MeCN/HEPES buffer solution, the probe gives a ratiometric fluorescent response to Hg2+, which was ascribed to the fluorescence resonance energy transfer from dansyl moiety to the ring-opened rhodamine B moiety, while the presence of Cu2+ causes fluorescence quenching. Beside the fluorescence change, the presence of Cu2+ and Hg2+ can induce intensive absorption at about 555 nm, which resulted in a color change from colorless to pink.
- Subjects
DANSYL compounds; RHODAMINES; FLUORESCENT probes; MERCURY compounds; COPPER compounds
- Publication
Acta Chimica Slovenica, 2017, Vol 64, Issue 3, p638
- ISSN
1318-0207
- Publication type
Article
- DOI
10.17344/acsi.2017.3442