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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 ...
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 ...
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 ...
Most prominent among his results was the discovery of the self-cleaning effect of superhydrophobic micro- and nanostructured surfaces, [17] [18] [19] which were technically realized with the trademark "Lotus Effect" from 1998 on, [20] and resulting products distributed worldwide.
Epicuticular wax is a waxy coating which covers the outer surface of the plant cuticle in land plants. It may form a whitish film or bloom on leaves, fruits and other plant organs. Chemically, it consists of hydrophobic organic compounds, mainly straight-chain aliphatic hydrocarbons with or without a variety of substituted functional groups.
A water drop on a lotus plant leaf. Superhydrophobic surfaces, such as the leaves of the lotus plant, are those that are extremely difficult to wet. The contact angles of a water droplet exceeds 150°. [6] This is referred to as the lotus effect, and is primarily a physical property related to interfacial tension, rather than a chemical ...
Cassie's law, or the Cassie equation, describes the effective contact angle θ c for a liquid on a chemically heterogeneous surface, i.e. the surface of a composite material consisting of different chemistries, that is, non-uniform throughout. [1] Contact angles are important as they quantify a surface's wettability, the nature of solid-fluid ...
Lotus effect. The applications and uses of coated fabrics are numerous. In manufacturing of pristine clothes. [13]Self cleaning fabrics with lotus effect. [14]PPE kits, aprons, coverall and gowns for healthcare workers usable in viral diseases such as COVID-19, [15] [16] medical textiles with protecting properties, body fluid resistance and antimicrobial surface.