OICC Press Journal of Nanostructure in Chemistry 2193-8865 6 4 (December 2016) 2016 08 04 Non-covalent functionalization of CVD-grown graphene with Au nanoparticles for electrochemical sensing application 10.1007/s40097-016-0201-6 EN Indrajit Shown Institute of Atomic and Molecular Sciences, Academia Sinica, Taipei, TW Abhijit Ganguly Institute of Atomic and Molecular Sciences, Academia Sinica, Taipei, TW Journal Article 2016 08 04 Abstract Graphene is an one-atom thick two-dimensional (2D) transparent carbon sheet which has aroused potential interest for the ultrafast high-sensitive electronic device application. Functionalization of 2D graphene is one of the important aspects to manipulate its intrinsic properties achieving the requisite aptness for its booming applications. Here, a novel strategy for the noncovalent surface functionalization of 2D graphene layer has been proposed utilizing self-assemble monolayers (SAM) of 1,4-benzenedimethanethiol (BDMT) that can further anchor gold nanoparticles (AuNPs) on the graphene surface. Raman spectroscopy and contact angle measurements confirm the SAM modification on graphene surface. AFM and XPS verify the anchoring of AuNPs on the graphene surface. Furthermore, the AuNPs-anchored BDMT-modified graphene (AuNPs/BDMT/G) electrode is explored for highly sensitive electrochemical detection of H 2 O 2 , exhibiting an impressive detection limit of 1.8 μM (signal-to-noise ratio of 3). Graphical abstract