| 초록 |
In recent years, there has been a strong interest in the self-assembly of various particles into periodic arrays due to their potential applications such as photonic crystal devices, functional templates and catalysts. We have studied to create colloidal arrays on polyelectrolyte multilayers using the secondary interactions (non-covalent bond) between the colloids and the polyelectrolyte films. Polyelectrolyte ink was patterned onto the oppositely charged polyelectrolyte multilayer film by surface-treated poly(dimethylsiloxane)(PDMS) stamps to create micro patterns. Micron-sized colloidal particles were then aligned on the patterned films though the effects of the chemical and topographical patterns of the films. Furthermore the micro-patterns could be used for the cell arrays or nanoparticle patterns though the further treatments, such as peptide-ligand binding or porous transition. This functional patterning technique has a great potential for optical or bio-sensing applications. |
