A Novel and Disposable Enzyme-Labeled Amperometric Immunosensor Based on MWCNT Fibers for Listeria monocytogenes Detection

Figure 3

SEM images of different immunoelectrode. (a) The image of immunoelectrode fabricated by physical method. (b) The image of immunoelectrode fabricated by chemical method. (c) The image of immunoelectrode in physical method incubated with L. monocytogenes. (d) The image of immunoelectrode in chemical method incubated with L. monocytogenes. (a1), (b1), (c1), and (d1) were the corresponding magnified images of (a), (b), (c), and (d).