▎ 摘　　要

We manipulated mono- and bi-layers of graphene on oxidized silicon wafers with a scanning force microscope (SFM). Two principle effects were observed and analyzed: (1) Cutting graphene and thereby producing ribbons, and (2) turning graphene upside down. Both are attributed to the intrinsic properties of graphenes and their interaction with the underlying substrate. (C) 2009 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim