01313nas a2200169   4500008004100000245008400041210006900125260000800194300001000202490000800212520073000220100003300950700002500983700001901008700001501027856010101042       2017                        eng d00aEffect of shape of protrusions and roughness on the hydrophilicity of a surface0 aEffect of shape of protrusions and roughness on the hydrophilici  cOCT  a34-390 v6583 aWe have investigated wetting of model rough surfaces made up of hydrophilic triangular and hexagonal pillars (protrusions). The surface roughnesses are altered by varying the area of the rough surface, the height of the pillars, and the surface interactions to the water. We have established a correlation between structure i.e., the shape of a pillar, which actually depends on the number of edges (due to shape), and the wetting phenomena. We have found that surface with higher number of edges repels water at lower roughness value. We explain the correlation by analyzing the variation of interactions energy components and density profiles of water on the structured surfaces. (C) 2017 Elsevier B.V. All rights reserved.1 aChowdhury, Sheelan, Sengupta1 aPandey, Prithvi, Raj1 aKumar, Rajnish1 aRoy, Sudip  uhttps://library.ncl.res.in/content/effect-shape-protrusions-and-roughness-hydrophilicity-surface