Alex H. F. Wu

TL;DR: It is shown that the nanoprotrusions on the surfaces of both black silicon and D. bipunctata wings form hierarchical structures through the formation of clusters of adjacent nanoproTrusions, which generate a mechanical bactericidal effect, independent of chemical composition.

TL;DR: Superhydrophobic titanium surfaces fabricated by femtosecond laser ablation to mimic the structure of lotus leaves were assessed for their ability to retain coccoid bacteria and each strain was found to preferentially attach to the crevices located between the microscale surface features.

TL;DR: In this paper, a novel fabrication process using monodisperse PMMA latex particles to facilitate controlled microvoid formation is presented, which results in hierarchically rough surfaces exhibiting ∼90% optical opacity.

TL;DR: The delicate interplay between chemistry and physical structure has been highlighted through theory and characterization of porous and rough interfaces within and outside the framework of superhydrophobics, and insights can be drawn from biology.

TL;DR: In this paper, the fabrication and characterization of super-hydrophobic surfaces with increasing nanoroughness by decreasing silica nanoparticle size in a sol-gel matrix was reported, revealing that significant air remains on hierarchical surfaces despite observed droplet pinning through hysteresis measurements.