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Fluorescent switch for fast and selective detection of mercury (II) ions in vitro and in living cells and a simple device for its removal.
- Source :
-
Talanta . Jul2014, Vol. 125, p204-209. 6p. - Publication Year :
- 2014
-
Abstract
- Abstract: A water-soluble, biocompatible, and fluorescent chemosensor (1) for label-free, simple, and fast detection of mercury ions (Hg2+) in aqueous solutions and in HepG2 cells with high selectivity is reported herein. Chelation of 1 with Hg2+ results in the disappearance of its fluorescence emission at 350nm and the appearance of a new emission at 405nm. Selectivity and interference studies indicated that 1 could be selectively chelated by Hg2+ without interference from other metal ions. Insight into the mechanisms responsible for its fluorescence effect was gained from ultrafast transient absorption spectroscopy. With these properties, 1 was successfully applied for imaging Hg2+ in living cells and for removing Hg2+ from river water. Moreover, we also constructed a simple device for fast and effective removal of Hg2+ from contaminated liquid samples. [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 00399140
- Volume :
- 125
- Database :
- Academic Search Index
- Journal :
- Talanta
- Publication Type :
- Academic Journal
- Accession number :
- 96186475
- Full Text :
- https://doi.org/10.1016/j.talanta.2014.02.063