Super-wetting/antiwetting surfaces with extremely high contrast of surface energy and liquid adhesion have attracted a lot of interest in both fundamental research and industry. Various types of special wetting surfaces can be constructed by adjusting the topographical structure and chemical composition. In this chapter, recent advance of the super-wetting/antiwetting surfaces with special solid/liquid adhesion has been reviewed, with a focus on the biomimetic fabrication and applications of TiO -based surfaces. Special super-wettability examples include lotus-leaf-inspired surfaces with low adhesion, rose-petal-inspired surfaces with high adhesion, spider silk bioinspired surfaces with directional adhesion, fish-scale-inspired underwater superoleophobic surface, and artificial surfaces with controllable or stimuli-responsive liquid adhesion. In addition, we will review some potential applications related to artificial antiwetting surface with controllable adhesion, e.g., self-cleaning, antifogging/antiicing, micro-droplet manipulation, fog/water collection, water/oil separation, antibioadhesion, micro-template for patterning, and friction reduction. Finally, the difficulty and prospects of this renascent and rapidly developing field are also briefly proposed and discussed.Keywords: Wettability, Super-wetting/antiwetting, "dhesion, TiO -based surface, "pplication © 2015 The Author(s). Licensee InTech. This chapter is distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
. IntroductionDuring the past decades, super-antiwetting surfaces, with a water contact angle WC" greater than o , have attracted considerable interest due to their importance in both fundamental research and practical application [ -]. Two types of extremely superantiwetting cases exist in nature, which are the sliding super-antiwetting lotus leaves or water strider with ultralow water sliding resistance and the sticky super-antiwetting petal effect or gecko feet with extremely high liquid adhesion. "iomimetic studies demonstrate that the synergistic effect of topographical structures and chemical compositions plays a vital role on the special functional surfaces with various adhesions. These findings have inspired the creation of super-antiwetting functional surfaces with self-cleaning, anti-icing/ antifogging, water/oil separation, micro-droplet manipulation, anti-bioadhesion, microtemplate, and low-friction transportation [ -].Figure . Some natural cases in lotus leaf, mosquito eye, rose petal, spider silks, butterfly wings, gecko feet, desert beetle, and water strider and their potential applications of biomimetic super-antiwetting surfaces, such as self-cleaning, anti-icing/antifogging, micro-droplet manipulation, fog/water collection, water/oil separation, anti-bioadhesion, microtemplate for patterning, and friction reductionIn the following two s...