Graphene oxide (GO) can be surface modified for various purposes, including enhancing its properties or tailoring its behaviour for specific applications such as biosensing. Herein we report the behaviour of a carboxylate functionalized graphene oxide that is both water repellent and electrically conductive. The GO is first produced using a modified Hummers method and then functionalized with a hyperbranched isostearic alcohol through an esterification reaction. The as-deposited functionalized GO films were observed to cause "petal-like" wetting of water, whereby droplets exhibited contact angles (CAs) greater than 150° and remaining pinned to the surface. To improve their conductivity, films of the functionalized GO deposited onto glass were laser-scribed to reduce some of the specific, adjoining regions of oxidic carbon to partially restore some of the sp