Antibiofouling property

Gunkel, G., Weinhart, M., Becherer, T., Haag, R., Huck, W. T. S. (2011). Effect of polymer Brush architecture on antibiofouling properties. Biomacromolecules, 12,4169-4172. 

Wei et al. [78] used 2,2 -azobis(isobutyramidine) dihydrochloride, which can be thermally decomposed to generate starting radicals for graft polymerization of 3-allyl-5,5 -dimethylhydantoin on the surface of RO membrane. It was shown that the modified membranes had lower contact angles than those of the raw membranes, indicating the increase of surface hydrophilicity. After exposure to microbial ceU suspension, the modified membranes showed slight decrease in pure water flux and less adsorption of microbial colonies on the surface, which verified the improvement of antibiofouling properties. 

Rana et al. [19] added 0.25 wt% of silver salt (silver nitrate, silver citrate hydrate, or silver actate) into aqueous MPD phase instead of organic TMC phase to prepare hybrid organic/inorganic RO membrane. Results showed that silver salts incorporated in the TFC membranes indeed improve the antibiofouling property. 

By this method, it is possible to control the grafted layer in order to improve the surface properties, such as wettability, lubricity, and the anti-protein adsorption to estabhsh antibiofouling [92]. 

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