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Authors report on a carbon nanotube (CNT)-based lateral flow immunoassay (LFI) for ultrasensitive detection of proteins. Shortened multiwalled CNTs were used as a colored (black) tag. The detection antibody was covalently immobilized on the CNT surface via diimide-activated conjugation between the carboxyl groups on the CNT surface and amino groups of antibodies. The assay involved the capture of...
The authors describe an immunosensor for the prostate specific antigen (PSA). It was obtained by modifying a glassy carbon electrode (GCE) first modified with gold nanoparticles and then with reduced graphene oxide that was decorated with gold nanoparticles. The AuNPs on reduced graphene oxide provide a suitable surface for attachment of antibodies. On binding of the antigen, the square wave voltammetric...
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