Microbiologically Influenced Corrosion Inhibition

Kuklinski, Andrzej; Sand, Wolfgang

doi:10.1007/978-1-4419-6996-5_529

Cited by 3 publications

(3 citation statements)

References 23 publications

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“…Furthermore, this ability to accumulate and precipitate metals was successfully applied to remediate to soil pollution or as waste treatment (Gharieb et al, 2004;Gadd, 2010). In addition, advances in corrosion inhibition using microbial films have been illustrated as an innovative strategy to protect metallic substrates (Videla and Herrera, 2005;Kuklinski and Sand, 2014).…”

Section: Introductionmentioning

confidence: 99%

Biopassivation Method for the Preservation of Copper and Bronze Artefacts

Joseph¹

2021

Front. Mater.

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A biopassivation method has been proposed as a new ecological and sustainable solution for preserving copper-based artefacts using selected microorganisms. This technology is based on the natural capacity of some fungi to form copper oxalates on the corroded surface of copper alloys. Existing unstable and pulverulent corrosion products are converted into an insoluble and chemically stable biopatina that provides the treated surfaces with a stabilization of the corrosion process and an aesthetically attractive green color. This treatment allows to stabilize the active corrosion induced for example by copper chlorides and to prevent green staining of surrounding materials (stone pedestal, wall…) due the leaching and loss of pulverulent and water-soluble corrosion products (i.e. copper sulfates). The behavior and performance of the proposed treatment have been followed during natural aging procedures, which have shown that this method stabilizes the corrosion process while having less chromatic variation compared to more traditional protective systems. The application protocol was then validated on real cases such as outdoor sculptures and archaeological objects. Based on these results, a ready-to-use kit is now proposed to conservators.

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Section: Introductionmentioning

confidence: 99%

Biopassivation Method for the Preservation of Copper and Bronze Artefacts

Joseph¹

2021

Front. Mater.

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“…In addition to health risks and direct medical costs, there are a number of significant direct and indirect industrial costs associated with product recalls, plant disinfection, down time, and lost productivity. Biofouling in food-processing plants, such as dairy, also dramatically reduces operating efficiency and increases corrosion rates and maintenance costs …”

Section: Introductionmentioning

confidence: 99%

“…Biofouling in food-processing plants, such as dairy, also dramatically reduces operating efficiency and increases corrosion rates and maintenance costs. 13 Biofilms are surface-attached mixed microbial communities encased in a self-produced extracellular polymeric matrix (EPS). 14 Bacteria within biofilms are protected from unfavorable environments during cleaning and sanitation and can be 1000 times more tolerant to antimicrobials than planktonic cells.…”

Section: Introductionmentioning

confidence: 99%

Food-Safe Modification of Stainless Steel Food-Processing Surfaces to Reduce Bacterial Biofilms

Awad

Asker

Hatton

2018

ACS Appl. Mater. Interfaces

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Biofilm formation on stainless steel (SS) surfaces of food-processing plants, leading to food-borne illness outbreaks, is enabled by the attachment and confinement of pathogens within microscale cavities of surface roughness (grooves, scratches). We report foodsafe oil-based slippery coatings (FOSCs) for food-processing surfaces that suppress bacterial adherence and biofilm formation by trapping residual oil lubricant within these surface cavities to block microbial growth. SS surfaces were chemically functionalized with alkylphosphonic acid to preferentially wet a layer of food-grade oil. FOSCs reduced the effective surface roughness, the adhesion of organic food residue, and bacteria. FOSCs significantly reduced Pseudomonas aeruginosa biofilm formation on standard roughness SS-316 by 5 log CFU cm, and by 3 log CFU cm for mirror-finished SS. FOSCs also enhanced surface cleanability, which we measured by bacterial counts after conventional detergent cleaning. Importantly, both SS grades maintained their antibiofilm activity after the erosion of the oil layer by surface wear with glass beads, which suggests that there is a residual volume of oil that remains to block surface cavity defects. These results indicate the potential of such low-cost, scalable approaches to enhance the cleanability of SS food-processing surfaces and improve food safety by reducing biofilm growth.

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