Reversible Attachment with Tailored Permeability: The Feather Vane and Bioinspired Designs

In bird flight, the majority of the wing surface consists of highly refined and hierarchically organized feathers. They are composed of barbs that stem from the feather shaft and barbules that branch from barbs, forming a rigid feather vane. Barbules provide adhesion within the vane through an interlocking hook‐and‐groove mechanism to allow for the effective capture of air. This functional adhesive can reattach if structures unfasten from one...