Abstract
N,N-diethyl-N-(2-methancryloylethy)-N-methylammonium bis(trifluoromethylsulfonyl) imide polymer (DEMM-TFSI) brush coated specimens (substrate: glasses) and a liquid ion type of polymer brush coating were investigated for their antifouling effect on biofilms. Biofilms were produced by two kinds of bacteria, E. coli and S. epidermidis. They were formed on specimens immersed into wells (of 12-well plates) that were filled with culture liquids and bacteria. The biofilm formation was observed. Also, brush coated specimens and glass substrates were investigated in the same way. DEMM polymer brush coated specimens formed more biofilm than PMMA (polymethyl methacrylate) polymer brush coated specimens and glass substrates. A greater amount of polarized components of biofilms was also observed for DEMM polymer brush coated specimens. The polar characteristics could be attributed to the attraction capability of bacteria and biofilms on DEMM polymer brush coated specimens. When considering the ease of removing biofilms by washing it with water, the ionic liquid type polymer brush (coated specimens) could be used for antifouling applications. If an initial antifouling application is needed, then the polar characteristics could be adjusted (design of the components and concentrations of ionic liquids, etc.) to solve the problem.
Highlights
For antifouling properties of materials, the surface plays an important role [1,2,3,4,5,6,7,8,9,10]
We focused on a polymer brush coating for the anti-fouling effect
DEMM polymer brush viewpoint of its biofilm formation and antifouling effect. It was compared with the results for would tend to attract biofilms more
Summary
For antifouling properties of materials, the surface plays an important role [1,2,3,4,5,6,7,8,9,10]. The causes of fouling can be grouped into two main categories of animate and inanimate causes [11] As for the latter, one can mention many types of contamination from organic to inorganic matter. Biofouling is a process where organisms generally attach to materials’ surfaces and cause their function and/or characteristics to change and deteriorate in many cases. It can be further classified into microfouling
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