Antimicrobial Cu-bearing 2205 duplex stainless steel against MIC by nitrate reducing Pseudomonas aeruginosa biofilm. (August 2018)

• Record Type: Journal Article
• Authors: Liu, Jialin; Jia, Ru; Zhou, Enze; Zhao, Ying; Dou, Wenwen; Xu, Dake; Yang, Ke; Gu, Tingyue
• Is Part Of: International biodeterioration & biodegradation. Volume 132(2018)
• Page Start: 132
• Page End: 138
• Publication Date: 2018-08
• Subjects: 2205-Cu duplex stainless steel -- Pseudomonas aeruginosa -- Microbiologically influenced corrosion -- Biofilm -- Antimicrobial; Biodegradation -- Periodicals; Bioremediation -- Periodicals; Biodegradation -- Periodicals; Biodégradation -- Périodiques; Biorestauration -- Périodiques; Electronic journals; 620.11223
• DOI: 10.1016/j.ibiod.2018.03.002
• Languages: English
• ISSNs: 0964-8305

Abstract

Abstract: In industrial and clinical settings, microbiologically influenced corrosion (MIC), also known as biocorrosion, is a major problem associated with materials degradation and infection. To mitigate biofilms, a Cu-bearing 2205 duplex stainless steel (2205-Cu DSS) was created by researchers to utilize the antimicrobial ability of copper. In this study, nitrate reducing Pseudomonas aeruginosa biofilm was grown as a nitrate reducing bacterium to investigate the antimicrobial efficacy and the MIC inhibition efficacy of 2205-Cu DSS under anaerobic condition. The results showed that both biofilm sessile cell count and electrochemically-measured corrosion rate were reduced compared with the 2205 duplex stainless steel (2205 DSS) control. Highlights: Pseudomonas aeruginosa is grown as a nitrate reducing bacterium (NRB). Cu-bearing 2205 duplex stainless steel (DSS) is compared with 2205 DSS. Cu-bearing 2205 DSS reduces P. aeruginosa sessile cell count. It also reduces corrosion rate of the NRB biofilm in enriched artificial seawater. Electrochemical tests are used to measure corrosion resistances and rates.