| 초록 |
Tannic acid (TA) is a natural polyphenolic compound that is known to exhibit many advantageous biological properties. TA acts as a weak acid due to the presence of multi-phenol groups, and can assemble with positively charged polymers such as poly-L-lysine (PLL). To modify a various substrate, we applied layer-by-layer assembly using a polyelectrolyte that is ionized according to pH conditions. We studied the surface properties such as thickness, wettability, composition and morphology. In this study, tannic acid was used to modify the surface properties of various materials. We also evaluated biocompatiblity of polyelectrolyte multilayer films. As a result, the films have the potential to be applied in biological or medical fields. |
