| 초록 |
In membrane technology, the prevention of biofouling is significant for maintaining the high flux. Poly(ethylene glycol) (PEG) functional group for non-biofouling has been widely studied, where this can form the hydration layer on the surface for repelling the protein adsorption. However, most of non-biofouling studies for membranes have been demonstrated on two-dimensional surfaces. We employed three-dimensionally structured membranes based on inverse-opal (IO) structures to gain a better understanding on this system. We first functionalized the internal walls of IO frame with layer-by-layer deposition of polyelectrolyte multilayers and then decorated the outermost layer with polymeric chains of poly(ethylene glycol)-random-poly(acrylic acid) (PEG-r-PAA). Finally, non-biofouling characteristics were compared with varying the surface functional groups, resulting in that protein adsorption on the PEG-r-PAA modified structure is outstandingly low even the 3D membrane structures. |
