| 초록 |
Polymer brushes are assemblies of macromolecules chemically tethered at one end to a substrate. Specifically, weak polyelectrolyte(PEL) brushes undergo substantial changes in swelling and contraction in response to environmental variation, such as a change in pH or ionic strength, making them excellent candidates for “smart” surface that respond to specific stimuli. We explored polyelectrolyte multilayers assembled with cationic and anionic PAAm-copolymer which exhibit “polyelectrolyte brush”-like behaviors. The polyelectrolyte multilayers were prepared by layer-by-layer dipping process. According to the assembled condition, cellular interaction with the surface of these polymeric film was changed. These systems can serve as basic building blocks for highly sophisticated structures such as templates for protein or cell adhesion or the build-up of polyelectrolyte multilayers. |
