A Novel Sandwich Electrochemical Immunosensor Based on the DNA-Derived Magnetic Nanochain Probes for Alpha-Fetoprotein

<table>TEM images of (a) ZMP particles, (b) ZMPs-AFP Ab<sub>2</sub>, (c) DNA/(ZMPs-HRP-AFP Ab<sub>2</sub>)<sub>n</sub>, (d) c being absorbed by external magnetic field of DNA/(ZMPs-HRP-AFP Ab<sub>2</sub>)<sub>n</sub> probes.</table>

Journal of Analytical Methods in Chemistry

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Figure 2

Figure 2: A Novel Sandwich Electrochemical Immunosensor Based on the DNA-Derived Magnetic Nanochain Probes for Alpha-Fetoprotein 