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In vitro specificity of MF-anti-CEA by Prussian blue iron staining. LS174T (A–C) and HCT116 (D–F) cells were cultivated for 5 hours with MF (B and E), and MF-anti-CEA (C and F) at same iron concentration (60 ng/μL). Untreated cells (A and D) were negative control.
Abbreviations: MF, magnetic fluid; CEA, carcinoembryonic antigen.
