A DNAzyme Catalytic Beacon Sensor for Paramagnetic Cu~(2+) Ions in Aqueous Solution with High Sensitivity and Selectivity

摘要

We have demonstrated a highly effective fluorescent sensor that showed strong fluorescence enhancement in the presence of a paramagnetic metal ion: Cu~(2+). This result further demonstrated that the DNAzyme-based metal sensing approach can be applied to a broad range of metal ions.