Figure 16.

An organic electrochemical transistor device for specific human influenza A virus sensing. (a) Schematic cross section of the organic electrochemical transistor device with a thin layer of 2,6-sialyllactose-grafted polymer in an electrolyte; (b) chemical structures of 2,6-sialyllactose-grafted polymer; (c) optical micrographs showing top view of the interdigitating drain–source microelectrodes before and after the coating of a polymer thin film. Scale bar: 500 um. Reproduced with permission from [130]. Copyright Elsevier, 2018.