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. 2019 Sep 25;9:13859. doi: 10.1038/s41598-019-50424-5

Figure 4.

Figure 4

Images obtained by transmission electron microscopy presenting several possible combinations according to the orientation of the primary antibody anchored on the metal surface. Superstructures are formed by recognition of Fab sites by immunogold (5 nm). Immunoconjugates prepared by physical adsorption (AE) and immunoconjugates prepared by covalent conjugation through the mercaptoundecanoic acid linker (FJ). Scale bar 20 nm.