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Home > News > How plants keep dry

March 25th, 2004

How plants keep dry

The microscopic structures of some leaves enable them to repel rain and dew. The subtle mechanisms might provide clues for making new water-repellent materials. It has previously been thought that the lotus effect comes from the way that lotus leaves are coated in a waxy film that is bumpy on the scale of micrometres. This roughness enhances the hydrophobicity of the surface. Much the same effect has been used to make super-hydrophobic materials with nanostructured surfaces, on which water droplets will not spread at all .

* Nature

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