Oligonucleotide-based fluorescence system for sensitive and selective detection of Ag(I) ions in aqueous solution.

In this letter, a new homogeneous assay with high sensitivity and selectivity was developed for the detection of silver ions in aqueous media at room temperature by using EvaGreen (EG), polycytosine oligonucleotide C₂₀ and single-walled carbon nanotubes (SWNTs). The fluorescence of EG is weak in the absence or presence of randomly coiled C₂₀ After C… CONTINUE READING