초록 |
Because there are numerous examples on unique structures in nature for specific or complex functions such as adhesion, light guiding, and wetting, many scientists have devoted themselves on mimicking the complex structures through various intermolecular interactions as well as fabrication methods. Among them, molding techniques based on polymeric materials are the most popular because they are fast, easy and relatively cheap to realize micro- and nanostructures in large area. Recently, our research group has developed asymmetric structures inspired from unique structures in nature and utilized them for several applications in adhesion, optical, and microfluidic devices. I will talk about the asymmetric structures and their applications such as Janus nanopillars for directional (Gecko) adhesives, Lucius prism arrays for autostereoscopic 3D displays, and the hierarchical two-face prism arrays for unidirectional wetting as well as reversible switching of flow direction. |