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A water drop on a lotus surface showing contact angles of approximately 147°. The lotus effect refers to self-cleaning properties that are a result of ultrahydrophobicity as exhibited by the leaves of Nelumbo, the lotus flower. [1] Dirt particles are picked up by water droplets due to the micro- and nanoscopic architecture on the surface ...
Ultrahydrophobicity. A drop on a lotus surface, with a contact angle of greater than 146°. A water droplet falling onto a superhydrophobic, elastic surface. In chemistry and materials science, ultrahydrophobic (or superhydrophobic) surfaces are highly hydrophobic, i.e., extremely difficult to wet. The contact angles of a water droplet on an ...
Wilhelm Barthlott (born 1946 in Forst, Germany) is a German botanist and biomimetic materials scientist. His official botanical author citation is Barthlott. Barthlott's areas of specialization are biodiversity (global distribution, assessment, and change in biodiversity) and bionics/ biomimetics (in particular, superhydrophobic biological ...
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A superhydrophobic coating is a thin surface layer that repels water. It is made from superhydrophobic (also known as ultrahydrophobic) materials, and typically cause an almost imperceptibly thin layer of air to form on top of a surface. Droplets hitting this kind of coating can fully rebound. [1][2] Generally speaking, superhydrophobic ...
Lotus Leaf (5780807820) Unitary roughness structure versus hierarchical structure A lotus leaf is well known for its ability to repel water and self-clean. Yuan [1] and his colleagues fabricated a negative mold of alotus leaf from polydimethylsiloxane (PDMS) to capture the tiny hierarchical structures integral for the leaf's ability to repel water, known as the lotus effect.
Doom is a first-person shooter game developed and published by id Software.Released on December 10, 1993, for DOS, it is the first installment in the Doom franchise.The player assumes the role of a space marine, later unofficially referred to as Doomguy, fighting through hordes of undead humans and invading demons.
The Salvinia effect describes the permanent stabilization of an air layer upon a hierarchically structured surface submerged in water. Based on biological models (e.g. the floating ferns Salvinia , backswimmer Notonecta ), biomimetic Salvinia-surfaces are used as drag reducing coatings (up to 30% reduction were previously measured on the first ...