(a) Schematic of LIS showing a drop of water sitting atop a textured surface (dark blue) coated with a hydrophobic modifier (red layer) and impregnated with a lubricant (yellow). (b) Scanning electron microscopy (SEM) image of a microtextured surface on silicon showing pillars with width a = 10 μm, height h = 10 μm, and pitch b = 10 μm. Scale bar: 15 μm.