This is especially in situations where the water is in the form of vapor or tiny droplets. Enhancing the mobility of liquid droplets on rough surfaces has applications ranging from condensation heat transfer for heat exchangers in power plants to more efficient water harvesting in arid regions where collecting fog droplets on coated meshes provides drinking water and irrigation for agriculture to the prevention of icing and frosting on aircraft wings.
“This represents a fundamentally new concept in engineered surfaces,” said Assistant Prof Tak-Sing Wong. “Our surfaces combine the unique surface architectures of lotus leaves and pitcher plants, in such a way that these surfaces possess both high surface area and a slippery interface to enhance droplet collection and mobility...
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