Highly Selective Oligonucleotide-Based Sensor for Mercury(II) in Aqueous Solutions
β Scribed by Akira Ono; Humika Togashi
- Publisher
- John Wiley and Sons
- Year
- 2004
- Tongue
- English
- Weight
- 165 KB
- Volume
- 116
- Category
- Article
- ISSN
- 0044-8249
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β¦ Synopsis
Contamination with heavy metal ions may have severe effects on human health and the environment. Mercury contamination is widespread and arises from a variety of natural sources, such as oceanic and volcanic emissions, [1] as well as anthropogenic sources, [2] such as gold mining and the combustion of solid waste and fuels. Once introduced into the marine environment, bacteria convert inorganic mercury into methylmercury, which enters the food chain and accumulates in higher organisms, such as large edible
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## Abstract A highly selective fluorescence sensor was developed for Hg(II) ion detection in aqueous solutions based on the selective binding of Hg(II) ions with a pair of thymineβthymine mismatch. The sensor consists of two DNA probes functionalized with a fluorophore (fluorescein, F) and a quench
## Abstract A highly selective assay method has been developed to detect mercury (II) (Hg^2+^) ions using cationic conjugated polymer (CCP). The transduction mechanism is based on a Hg^2+^ promoted reaction. In the absence of Hg^2+^ ions, the CCP can form the complex with an anionic 1,3βdithioleβ2β