| 초록 |
Bacterial surface layers (s-layers) have shown a great potential for constructing the nanostructured biomimetic surfaces. They have an intrinsic characteristic of self-reassembly, enabling them to be utilized as useful building blocks in nanofabrication process. We report that recrystallization of s-layers can be manipulated by the type of assembling substrates. When s-layers are recrystallized on weakly charged polyelectrolyte multilayers wherein unique properties of high surface mobility and interdiffusion are allowed, notably large-scale two-dimensional assembly of s-layers with few defects can be obtained. In addition, a morphological transition of s-layer crystallization from 1D hairy structures to 2D sheets is captured by controlling the temperature, which confirms the importance of the surface mobility during recrystallization process. Therefore, it is expected that various applications will be available for patterning, templated synthesis, or transporting nanochannel devices. |
