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Metal release from stainless steel in biological environments: A review
KTH, School of Chemical Science and Engineering (CHE), Chemistry, Surface and Corrosion Science.ORCID iD: 0000-0003-2145-3650
KTH, School of Chemical Science and Engineering (CHE), Chemistry, Surface and Corrosion Science.ORCID iD: 0000-0003-2206-0082
2016 (English)In: Biointerphases, ISSN 1934-8630, E-ISSN 1559-4106, Vol. 11, no 1, 018901Article, review/survey (Refereed) Published
Abstract [en]

Due to its beneficial corrosion resistance, stainless steel is widely used in, e.g., biomedical applications, as surfaces in food contact, and for products intended to come into skin contact. Low levels of metals can be released from the stainless steel surface into solution, even for these highly corrosion resistant alloys. This needs to be considered in risk assessment and management. This review aims to compile the different metal release mechanisms that are relevant for stainless steel when used in different biological settings. These mechanisms include corrosion-induced metal release, dissolution of the surface oxide, friction-induced metal release, and their combinations. The influence of important physicochemical surface properties, different organic species and proteins in solution, and of biofilm formation on corrosion-induced metal release is discussed. Chemical and electrochemical dissolution mechanisms of the surface oxides of stainless steel are presented with a focus on protonation, complexation/ligand-induced dissolution, and reductive dissolution by applying a perspective on surface adsorption of complexing or reducing ligands and proteins. The influence of alloy composition, microstructure, route of manufacture, and surface finish on the metal release process is furthermore discussed as well as the chemical speciation of released metals. Typical metal release patterns are summarized.

Place, publisher, year, edition, pages
American Institute of Physics (AIP), 2016. Vol. 11, no 1, 018901
Keyword [en]
Metal surfaces, Oxide surfaces, Corrosion, Nickel, Surface finishing
National Category
Corrosion Engineering Manufacturing, Surface and Joining Technology
URN: urn:nbn:se:kth:diva-177000DOI: 10.1116/1.4934628ISI: 000374982200016PubMedID: 26514345ScopusID: 2-s2.0-84954415568OAI: diva2:871533
Swedish Research Council, 2013-5621Forte, Swedish Research Council for Health, Working Life and Welfare, 2013-0054

QC 20151116

Available from: 2015-11-16 Created: 2015-11-13 Last updated: 2016-05-30Bibliographically approved

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Hedberg, Yolanda S.Odnevall Wallinder, Inger
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