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A class of novel redox-active hybrid nanostructures comprising of metal platinum and ordered mesoporous carbon (Pt-MSC) was designed as molecular tags for sensitive electrochemical immunoassay (alpha-fetoprotein, AFP, as a model analyte) on the cyclodextrin-functionalized graphene sensing platform. To construct such a molecular tag, a layer of positively charged thionine was initially adsorbed onto...
A new electrochemical immunoassay of alpha-fetoprotein (AFP) was developed on an organic–inorganic hybrid nanostructure-functionalized carbon electrode by coupling with magnetic bionanolabels. Multi-walled carbon nanotubes (CNTs), single-stranded DNA, thionine and AFP were utilized for the construction of the immunosensor, while the core–shell Fe 3 O 4 -silver nanocomposites were employed...
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