Switchable electrochemiluminescence aptasensor coupled with resonance energy transfer for selective attomolar detection of Hg2+ via CdTe@CdS/dendrimer probe and Au nanoparticle quencher

A high efficient ECL-RET detection strategy based on resonance energy transfer system between CdTe@CdS QDs as luminescence probe and AuNPs was applied to construct of ultra-sensitive and highly specific aptasensor for attomolar detection of Hg2+.207