Abstract
Simple methods for the collection and transportation of water droplets can solve complex problems, but developing technologies to achieve this is a challenge. To this end, widespread attention in recent years has focused on the preparation and application of superhydrophobic surfaces. Inspired by the structures of trichomes (hairs) of Sarracenia, a genus of carnivorous pitcher plants, we report a bionic high-low rib-like microstructure with superhydrophobic and directional water transport properties. At the same time, we can accelerate fog-collection efficiency by preparing a surface enabling directional slip of liquid. This work provides a good strategy for liquid transportation and fog collection, which has broad application prospects in the collection of rainwater in desert areas and the transmission of microfluidics in mechanical engineering.
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