Sandwich-structured electrogenerated chemiluminescence immunosensor based on dual-stabilizers-capped CdTe quantum dots as signal probes and Fe3O4-Au nanocomposites as magnetic separable carriers
Multifunctional Fe3O4-Au nanocomposites offered good conductivity, easy bioconjugation and convenient separation. Dual-stabilizers-capped CdTe QDs with excellent ECL performance served as signal labels. A sanwiched ECL nano-immunosensor with enhanced sensitivity was presented for a general application in bioassays.