Nanomaterials describe, in principle, materials of which a single unit is sized (in at least one dimension) between 1 to 1000 nanometres (10-⁹ meter) but usually is 1 to 100 nm. A nanostructure is a structure of intermediate size between microscopic and molecular structures. Materials with structure at the nanoscale often have unique optical, electronic, or mechanical properties. Our group studies large-area uniform and cost-effective nanostructures through anodic oxidation, deposition, layer-by-layer(LbL) self-assembly, and wet chemistry. In order to improve the surface characteristics, we utilize various surface treatment techniques such as plasma, UV, and nanoscale coating. In our group, we are trying to characterize morphological, mechanical, electrical, optical, and wetting properties of nanostructures and nanomaterials. Also, environmental stability of nanomaterials and nanostructures is one of key interesting properties for industrial applications.