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. 2015 Sep 22;5:14159. doi: 10.1038/srep14159

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(a) Change in the macroscopic apparent contact angle of the droplet for textured surfaces with a change in liquid viscosity. (b) The effect of viscosity on the mesoscopic apparent contact angle of the droplet for a flat DLC surface. Droplets on the Si surface showed no effect of viscosity on the apparent contact angle at either length scale.