Nafion coated stainless steel for anti-biofilm application

作者：Zhong Li Juan; Pang Li Qing; Che Li Ming; Wu Xue E^*; Chen Xiao Dong

来源：Colloids and Surfaces B: Biointerfaces , 2013, 111: 252-256.

DOI：10.1016/j.colsurfb.2013.05.039

• Biofilm
• Nafion
• E. coli
• Stainless steel
• Anti-biofilm

Biofilms can adhere to most surfaces and have caused a wide range of problems in various industrial processes as well as daily life activities. In this work, the anti-biofilm ability of Nafion-coated stainless steel surface was investigated and our results showed that stainless steel discs coated with 1% Nafion can significantly reduce E. coil adhesion. Nafion has a large amount of negatively charged sulphonate groups, and the findings of this study suggest that the negative surface charge can greatly reduce bacterial adhesion through increasing the electrostatic repulsion between negatively charged bacterial cells and Nafion coated stainless steel surface. The roughness of coated and uncoated stainless steel discs made no significant differences while the hydrophobic of the discs increased after coated with Nafion.

• 出版日期2013-11-1
• 单位厦门大学