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A sandwich chemiluminescence (CL) immunosensor for sensitive detection of human leptin was developed with a multiple signal amplification strategy from catalytic hemin/G-quadruplex DNAzymes and functional superparamagnetic nanocomposites. To construct this sensing platform, core–shell structural Fe3O4/polydopamine (PD)/Au superparamagnetic nanocomposites were synthesized by an in situ method with...
In this work, we reported a sensitive chemiluminescent immunosensor for the detection of human leptin by using hemin/G-quadruplex DNAzymes to amplify detection signal. In this sensing system, the primary antibody (anti-human leptin) was firstly bound to the 96-well plates, and human leptin and biotinylated secondary antibody were successively combined to form sandwich-type immune complex through specific...
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