▎ 摘　　要

First selective bio-molecule sensing was achieved using a graphene field-effect transistor. For selective sensing, the surface of the graphene was modified by a receptor, such as an immunoglobulin E aptamer, and a fragment antibody, to take into account the height of the receptor and the Debye length. For higher sensitivity, it was found that the concentration of the receptor on the graphene surface was important and should be optimized.