Research Article

A Colorimetric Immunoassay Based on g-C3N4@Fe3O4 Nanocomposite for Detection of Carcinoembryonic Antigen

Figure 1

(a) SEM, (b) EDX, and (c) XRD of g-C3N4@Fe3O4. (d) FTIR of (A) Fe3O4, (B) g-C3N4, and (C) g-C3N4@Fe3O.
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