Fig. 8. Superhydrophobicity and superoleophilicity of the PTFE surface after fs laser ablation. (a–c) Surface microstructure. (d) Photography of water (blue color) and oil (red color) droplets on the as-prepared PTFE surface. (e) Static shape and (f) roll behavior of a water droplet on the laser-structured surface. Reproduced from ref. 16 with permission from Elsevier, copyright 2016.
