Corrosion analysis of AISI 430 stainless steel in the presence of Escherichia coli and Staphylococcus aureus. (1st April 2021)

• Record Type: Journal Article
• Authors: Guerra, C.; Ringuedé, A.; Azocar, M.I.; Walter, M.; Galarce, C.; Bedioui, F.; Cassir, M.; Sancy, M.
• Is Part Of: Corrosion science. Volume 181(2021)
• Publication Date: 2021-04-01
• Subjects: Escherichia coli -- Staphylococcus aureus -- Stainless steel -- AISI 430 -- Corrosion; Corrosion and anti-corrosives -- Periodicals; 620.11223
• DOI: 10.1016/j.corsci.2020.109204
• Languages: English
• ISSNs: 0010-938X

Abstract

Graphical abstract: Highlight s : Escherichia coli and Staphylococcus aureus did not colonize on the AISI 430 surface. Clear signs of corrosion were observed on the stainless steel surface after exposure to an acidic sterilized sweat solution. Staphylococcus aureus did not negatively influence the electrochemical response of AISI 430. Escherichia coli affected the electrochemical behavior of AISI 430. Abstract: AISI 430 stainless steel is an attractive material to be used in the healthcare industry, particularly as a sensor due to its low cost, corrosion resistance, as well as being Ni-free. AISI 430 was evaluated in an artificial sweat solution with the presence of Escherichia coli, and Staphylococcus aureus . Surface microbial analyses did not reveal colonization of bacteria on metallic surfaces, even when bacteria adhesion was investigated in a Müeller-Hinton solution. However, by electrochemical techniques, the AISI 430 surfaces demonstrated clear signs of corrosion mainly in a sterile medium after two weeks of exposure.