Figure 3.
(A) Schematic diagram of a ratiometric fluorescence ELISA for CRP detection based on MnO2 NFs coupled with CDs [55]. Reprinted with permission from ref. [55]. Copyright 2018 Royal Society of Chemistry. (B) Schematic illustration of the label-free nanozyme-based chemiluminescent immunosensor by using CuONRs for CEA detection [58]. Reprinted with permission from ref. [58]. Copyright 2018 Elsevier. (C) Schematic illustration of CL imaging nanozyme immunoassay of multiple chicken cytokines and an immunosensor array [60]. Reprinted with permission from ref. [60]. Copyright 2018 Royal Society of Chemistry.