First evaluation of the applicability of microbial extracellular polymeric substances for corrosion protection of metal substrates

Stadler, Reinhard; Fürbeth, W.; Harneit, Kerstin; Grooters, Mariël; Woellbrink, M.; Sand, Wolfgang

doi:10.1016/j.electacta.2008.04.082

Cited by 70 publications

(50 citation statements)

References 38 publications

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“…Finally, recent studies showed that using the EPS, separated from the microbes, could reduce corrosion by SRB (Stadler et al, 2008(Stadler et al, , 2010Finkenstadt et al, 2011). This corrosion protection by EPS appeared to be species dependent.…”

Section: Metal Corrosion Inhibition Using Microbially Based Techniquesmentioning

confidence: 99%

The dual role of microbes in corrosion

2014

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Corrosion is the result of a series of chemical, physical and (micro) biological processes leading to the deterioration of materials such as steel and stone. It is a world-wide problem with great societal and economic consequences. Current corrosion control strategies based on chemically produced products are under increasing pressure of stringent environmental regulations. Furthermore, they are rather inefficient. Therefore, there is an urgent need for environmentally friendly and sustainable corrosion control strategies. The mechanisms of microbially influenced corrosion and microbially influenced corrosion inhibition are not completely understood, because they cannot be linked to a single biochemical reaction or specific microbial species or groups. Corrosion is influenced by the complex processes of different microorganisms performing different electrochemical reactions and secreting proteins and metabolites that can have secondary effects. Information on the identity and role of microbial communities that are related to corrosion and corrosion inhibition in different materials and in different environments is scarce. As some microorganisms are able to both cause and inhibit corrosion, we pay particular interest to their potential role as corrosion-controlling agents. We show interesting interfaces in which scientists from different disciplines such as microbiology, engineering and art conservation can collaborate to find solutions to the problems caused by corrosion.

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Section: Metal Corrosion Inhibition Using Microbially Based Techniquesmentioning

confidence: 99%

The dual role of microbes in corrosion

2014

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“…Bakterije kolonizuju površinu metala i proizvode heterogene ekstracelularne polimerne supstance koje prijanjanju za metalnu površinu zbog prisustva funkcionalnih grupa u molekulima EPS. Utvrđeno je da dekstrani koji ulaze u sastav EPS imaju sposobnost inhibiranja korozije metala [28].…”

Section: Formiranje Biofilmaunclassified

“…Utvrđeno je da EPS mogu inhibirati aktivnost sulfat-redukujućih bakterija (SRB) [28,32,33]. Tako bakterijska vrsta Desulfovibrio alaskensis sintetiše EPS koji inhibiraju koroziju gvožđa i ugljeničnog čelika, dok vrste Desulfovibrio vulgaris i Desulfovibrio indonesiensis svojom metaboličkom aktivnošću sintetišu EPS koji se ponašaju kao aktivatori korozionih procesa [28].…”

Section: Inhibicija Korozije Pomoću Biofilmaunclassified

Microorganisms as potential corrosion inhibitors of metallic materials

Tasić¹,

Antonijević²,

Petrović-Mihajlović³

2016

Rec odr raz

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IZVOD -Proces korozije predstavlja destrukciju kako metalnih tako i nemetalnih materijala usled hemijske ili elektrohemijske interakcije sa okolnom sredinom. Kao rezultat interakcija između površine metala i bakterijskih ćelija, odnosno njihovih metabolita nastaje mikrobiološki indukovana korozija. Međutim, neke vrste mikroorganizama utiču na smanjenje procesa korozije. Shodno tome, analizirana je literatura koja se bavi primenom mikroorganizama kao potencijalnih inhibitora korozije metala. Različite bakterijske vrste ispitivane su kao potencijalni inhibitori korozije. Istaknut je značaj samih mikroorganizama kao i uloga ekstracelularnih polimernih supstanci na koroziono ponašanje metala. Prikazano je da na stepen zaštite pored tipa primenjenog mikroorganizma, utiče i vrsta metala. Takođe, na osnovu prikazanih podataka može se videti da pojedine vrste mikroorganizma mogu uspešno zameniti organske inhibitore koji mogu biti toksični.Ključne reči: mikroorganizmi, korozija, metali, inhibitori, bakterijske vrste ABSTRACT -Corrosion presents the destruction of materials through chemical or electrochemical interactions with their environment. Interactions between the metal surface and bacterial cells or products of their metabolic activities can lead to microbially-influenced corrosion. Also, it is known that certain microorganisms can contribute to corrosion inhibition. In accordance to that, the literature dealing with the application of different microorganisms as a potentialy corrosion inhibitors of metals is investigated. Different bacterial strains as a corrosion

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“…The stopper/wire system was then fitted to serum bottles with sterile medium and purged with N 2 . Stadler and others (2008) 13 Pure iron (Armco), carbon steel ST37, stainless steel AISI 304 (UNS S30400) Coupons in Teflon holders were placed in a glass beaker, covered with aluminum foil and sterilized by heat-treatment for 9 hours at 130 • C. Further work requiring sterile conditions was performed in a clean bench. Stranger-Johannessen (1987) 74 Painted steel plates…”

Section: Methodsmentioning

confidence: 99%

“…• C in glass beakers covered with aluminum foil; 13 or the use of ultraviolet light. 14 It is important to mention that the methods listed in Table I correspond roughly to the same number of papers explicitly describing the sterilization procedures in the methodology section of the manuscript.…”

mentioning

confidence: 99%

Efficacy of Sterilization Methods and Their Influence on the Electrochemical Behavior of Plain Carbon Steel

Giai

Ortiz

Kappes

et al. 2016

J. Electrochem. Soc.

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Minimizing contamination of control treatments in microbiologically influenced corrosion (MIC) studies is of critical importance. Metal sterilization procedures should not alter the surface nor affect the inherent susceptibility of the metal to corrosion while adequately deactivating biological activity. However, there is no consensus in the literature regarding such procedures due to, in part, the lack of a universally accepted methodology. This investigation evaluates various sterilization methods for carbon steel concerning practicality, efficacy, and effects on the electrochemical response of the metal. Three sterilization procedures using i) dry heat, ii) ethanol, or iii) glutaraldehyde as sterilizing agents were evaluated. Even though all sterilization approaches were equally effective in eliminating microorganisms and spores from the metal surface, dry heating at 170 • C in an inert atmosphere was identified as the most convenient sterilization method regarding practicality and consistency in the electrochemical response of the metal. Sterilization of carbon steels in 75 vol% ethanol and glutaraldehyde, as well as alcohol followed by flaming, is discouraged given the large dispersion in corrosion response caused by the exposure to the sterilization media. Microbiologically influenced corrosion (MIC) studies deal with the role microorganisms have on electrochemical processes leading to corrosion.1-3 As bacteria and fungi interact with the metal surface and its environment, they are able "to initiate, facilitate or accelerate the corrosion reaction without changing its electrochemical nature."4 The ubiquitous nature of some microorganisms can present a challenge to MIC studies, where contamination with species of diverse metabolic capabilities can alter the result of the experiments. Therefore, minimizing contamination from foreign microorganisms to maintain a microbial community that properly reflects the desired microbial composition (i.e. these being an environmental sample or a specifically defined community) is of critical importance in MIC research.Most of the components used in an MIC study (i.e. glassware, reactors or electrochemical cells, and solutions) can be sterilized following standard sterilization procedures 5 used by microbiologists; however, there is no consensus regarding sterilization procedures for metal samples in the literature. In the ideal situation, the sterilization methodology should kill all microorganisms and spores on the metal, but it should not alter its surface nor affect the inherent susceptibility of the metal on corrosion.In a literature survey of over 200 papers dealing with MIC of carbon and low alloy steels, there were over 20 different procedures to sterilize metal samples, Table I. Some of the methods described in the literature range from autoclaving steel stubs inside of watertight containers, submerging the stubs in 70 vol% ethyl alcohol and flaming them before inoculation, 6 to immersion in a 2000 ppm chlorine solution (i.e. approximately 4000 times the residual...

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First evaluation of the applicability of microbial extracellular polymeric substances for corrosion protection of metal substrates

Cited by 70 publications

References 38 publications

The dual role of microbes in corrosion

The dual role of microbes in corrosion

Microorganisms as potential corrosion inhibitors of metallic materials

Efficacy of Sterilization Methods and Their Influence on the Electrochemical Behavior of Plain Carbon Steel

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