Intermolecular interaction between water molecules is described by the standard SPC/E 50 potential. However, the coulombic terms are evaluated using the Wolf summation technique with a damping factor of 0.12Å -1 . A cutoff of 10Å is used for both Lennard Jones and coulombic interactions. This specific potential form was previously used and verified in our earlier study on interfacial liquid-vapor phase change . Bond lengths and angle of the water molecules are constrained using the Shake algorithm . Interaction between the gold atoms are modeled using the Embedded-atom potential .