Graphene, with its atomically smooth surface area and unique physicochemical properties can be potentially used as an electrode for EWOC, allowing the construction of ultra-low voltage "electrowetting on conductor" devices that could modify the surface properties upon the applications of a small voltage . The electrowetting phenomenon is conventionally described at the macroscopic level by the Young-Lippmann equation (Equation ), which predicts that upon application of a voltage, the liquid-solid contact angle ( ) decreases from its equilibrium value ( ) at zero surface charge, depending on the magnitude of the applied voltage ( ), the total areal capacitance ( ), and the liquid-ambient (liquid-air) surface tension ( ).