Fig. 7.

Scheme of a graphene field effect transistor with symbolized proteins linked to the 2D carbon material (a). The entire sensor surface of a commercial sensor showing five sensing spots with a red scale bar of 1 mm is depicted in (b). A photograph of the fully integrated graphene-based senor chip from Nanomedical Diagnostics is shown in (c). Adapted from [98]. Copyright (2019) Springer Nature