Nano-plasmonic graphene-quantum dots integrated photoelectronic biosensor

We report a nano-plasmonic biosensor with integrated optoelectronic architecture developed on a miniaturized chip. With simple means, the nano-plasmonic sensor demonstrated the capability to record the selective and specific binding of proteins to the bioreceptors immobilized on gold nanoparticles arrays placed directly on a photoconductive graphene-Perovskite quantum dots hybrid channel. The distinct combination of the nano-plasmonic structure, proteins and hybrid two-dimensional materials endowed the photoelectronic detection of biotin with advantages of label-free, ultrahigh sensitivity and rapid speed.