Highly sensitive electrochemiluminescent cytosensing using carbon nanodot@Ag hybrid material and graphene for dual signal amplification.

Here we use functionalized carbon nanodots (C-dots) as novel electrochemiluminescence (ECL) probes and graphene nanosheets as signal amplification agents for highly sensitive and selective cancer cell detection. The ECL cytosensor shows superior cell-capture ability and exhibits a wide linear range and a low detection limit for cancer cells.