3D printing of bioinspired textured surfaces with superamphiphobicity

Natural superwettable surfaces have received extensive attention due to their unique wetting performance and functionalities. Inspired by nature, artificial surfaces with superwettability, particularly superamphiphobicity, i.e., superhydrophobicity and superoleophobicity, have been widely developed using various methods and techniques, where 3D printing, which is also called additive manufacturing, is an emerging technique. 3D printing is efficient for rapid and precise prototyping with the advantage of fabricating various architectures and structures with extreme complexity. Therefore, it is promising for building bioinspired superamphiphobic surfaces with structural complexity in a facile manner. Herein, the state-of-the-art 3D printing techniques and methods for fabricating superwettable surfaces with micro/nanostructures are reviewed, followed by an overview of their extensive applications, which are believed to be promising in engineered wettability, bionic science, liquid transport, microfluidics, drag reduction, anti-fouling, oil/water separation, etc.