Patent ID: 8062893
Filing Date: 2011-11-22
Classification: G01N

Abstract:
1. A sensor for detecting mercury, comprising: a first polynucleotide, comprising a first region, and a second region, a second polynucleotide, a third polynucleotide, a fluorophore, and a quencher, wherein the third polynucleotide is optionally linked to the second region; the fluorophore is linked to the first polynucleotide and the quencher is linked to the second polynucleotide, or the fluorophore is linked to the second polynucleotide and the quencher is linked to the first polynucleotide; when the first region and the second region hybridize to the second polynucleotide, the quencher quenches the fluorophore; and the second region binds to the third polynucleotide when in the presence of Hg