Functionalised Au Coated Iron Oxide Nanocomposites Based Reusable Immunosensor for AFB1 Detection

Figure 5

AFM images: topography image and height profiles of (a) bare Au, (b) 4-ATP/Au, (c) aAFB1/4-ATP/Au, (d) AFB1/BSA/aAFB1/4-ATP/Au, and (e) r-IgG-Cys-Au-Fe₃O₄/AFB1/BSA/aAFB1/4-ATP/Au immunosensor.

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