Fig. 12.

(a) Preparation scheme of the micropatterned reduced graphene oxide field-effect transistor (MrGO-FET). (b) Schematic of the biosensor for rotavirus detection in real time. (1) PSE modification of rGO matrix, (2) blocking of the gold electrode by 1-dodecanethiol (DDT), (3) antibody immobilization and blocking the MrGO surface by ethanolamine, (4) rotavirus capture is detected by (5) monitoring the relative current changes (I) in real time. Adapted by permission of (Liu et al., 2013). Copyright © 2013, Elsevier. (For interpretation of the references to color in this figure legend, the reader is referred to the Web version of this article.)