1. The Effectiveness of Nafion-Coated Stainless Steel Surfaces for Inhibiting Bacillus Subtilis Biofilm Formation
- Author
-
Song Yibo, Zhong Lijuan, and Zhou Shufeng
- Subjects
Nafion ,02 engineering and technology ,Bacillus subtilis ,010402 general chemistry ,01 natural sciences ,lcsh:Technology ,biofilm ,lcsh:Chemistry ,chemistry.chemical_compound ,General Materials Science ,stainless steel ,Instrumentation ,lcsh:QH301-705.5 ,Fluid Flow and Transfer Processes ,Thesaurus (information retrieval) ,biology ,Chemistry ,lcsh:T ,Process Chemistry and Technology ,digestive, oral, and skin physiology ,fungi ,General Engineering ,Biofilm ,technology, industry, and agriculture ,021001 nanoscience & nanotechnology ,biology.organism_classification ,lcsh:QC1-999 ,0104 chemical sciences ,Computer Science Applications ,antibacterial ,Chemical engineering ,lcsh:Biology (General) ,lcsh:QD1-999 ,lcsh:TA1-2040 ,0210 nano-technology ,lcsh:Engineering (General). Civil engineering (General) ,lcsh:Physics - Abstract
Stainless steel is one of most commonly used materials in the world, however, biofilms on the surfaces of stainless steel cause many serious problems. In order to find effective methods of reducing bacterial adhesion to stainless steel, and to investigate the role of electrostatic effects during the formation of biofilms, this study used a stainless steel surface that was negatively charged by being coated with Nafion which was terminated by sulfonic groups. The results showed that the roughness of stainless steel discs coated with 1% Nafion was similar to an uncoated surface, however the hydrophobicity increased, and the Nafion-coated surface reduced the adhesion of Bacillus subtilis by 75% compared with uncoated surfaces. Therefore, a facile way to acquire antibacterial stainless steel was found, and it is proved that electrostatic effects have a significant influence on the formation of biofilms.
- Published
- 2020