We divided the systems into three regions, interfacial gold (within 5 Å of the interface), interfacial solvent (also within 5 Å of the interface), and non-interfacial solvent (more than 10 Å away from the interface) for both the planar and nanoparticle systems. Each system was simulated for an additional 50 ps in the NVE ensemble for the planar systems and the Langevin Hull (NPT)