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Dirt-repellent surfaces with lotus effect
Using nature as a model
Biologists at Bonn University discovered that the leaves of many plants not only repel water, but also dirt, as water running off the surface takes dirt with it. The lotus or sacred water lily is a prime example. To use this effect, nano-technological methods were developed to apply extremely fine microstructured finishes to materials that imitate the surface of lotus leaves. So far, the lotus effect may be found in house paint, tiles, glass panes and plastic sheets. Roof tiles with lotus effect are at the development stage.
Easy-to-clean surfaces in sanitary ceramics and flooring have qualities similar to the lotus effect. Since these surfaces do not feature an actual lotus effect, they cannot be called self-cleaning, but nevertheless they do offer comparable advantages.
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Saves cleaning agents |
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Easy to clean |
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Durably attractive surfaces |
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Saves water |
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Low material consumption |
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Long lifespan |
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Less waste |
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Lower costs |
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Saves time |
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Positive image |
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Increased safety |
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Sacred lotus or waterlily (Nelumbo nucifera)
(Source: Department of Botany at Bonn University) |
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