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. 2017 Aug 31;17(9):1993. doi: 10.3390/s17091993

Figure 7.

Figure 7

Schematic illustration of the preparation of an immunosensor for CEA employing GO/CS–Fc as scaffold for the immobilization of capture antibodies and Fe3O4/AuNPs functionalized detector antibodies. The electrochemical reactions involved in the affinity reaction monitoring are also shown. Reprinted from [44].