The role of microbial biofilms in deterioration of space station candidate materials

Gu, Ji‐Dong; Roman, Monsi C.; Esselman, T.C.; Mitchell, Ralph

doi:10.1016/s0964-8305(98)80005-x

Cited by 28 publications

(5 citation statements)

References 33 publications

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“…In previous reports, it has been found that Vibrio harveyi may contaminate the aircraft fuel system (Ji- Dong et al, 1998;Passman, 2013), but there is no report about the corrosivity of Vibrio harveyi to the best of our knowledge. Herein, we firstly confirmed the corrosivity of V. harveyi, a common contamination microorganism, against the aluminum alloy 2024 (AA2024) which is a kind of typical materials used for fuel tank.…”

Section: Introductionmentioning

confidence: 92%

A Mixture of D-Amino Acids Enhances the Biocidal Efficacy of CMIT/MIT Against Corrosive Vibrio harveyi Biofilm

et al. 2020

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Biocides are widely used for the mitigation of microbial contamination, especially in the field of the aviation fuel industry. However, the long-term use of biocide has raised the concerns regarding the environmental contamination and microbial drug resistance. In this study, the effect of a mixture of D-amino acids (D-tyrosine and D-methionine) on the enhancement of the bactericidal effect of 5-Chloro-2-Methyl-4-isothiazolin-3one/2-Methyl-2H-isothiazole-3-one (CMIT/MIT) against corrosive Vibrio harveyi biofilm was evaluated. The results revealed that D-Tyr and D-Met alone can enhance the biocidal efficacy of CMIT/MIT, while the treatment of 5 ppm CMIT/MIT, 1 ppm D-Tyr and 100 ppm D-Met showed the best efficacy comparable to that of 25 ppm CMIT/MIT alone. The triple combination treatment successfully prevented the establishment of the corrosive V. harveyi biofilm and effectively removed the mature V. harveyi biofilm. These conclusions were confirmed by the results of sessile cell counts, images obtained by scanning electron microscope and confocal laser scanning microscope, and the ATP test kit.

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Section: Introductionmentioning

confidence: 92%

A Mixture of D-Amino Acids Enhances the Biocidal Efficacy of CMIT/MIT Against Corrosive Vibrio harveyi Biofilm

et al. 2020

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“…The coupons after removal from the flasks were first treated with 3% glutaraldehyde buffer in 0.2 M Na cacodylate overnight in glass vials as described before (Gu et al, 1998). The samples were then washed with 0.2 M Na cacodylate three times, further fixed in 1% OsO4 in 0.1 M Na cacodylate for at least 1 h, and rinsed with Na cacodylate and deionized water, respectively.…”

Section: Preparation For Scanning Electron Microscopymentioning

confidence: 99%

“…Microbial adhesion and establishment of a complex community of microorganisms (microfouling) are prerequisites for substantial degradation of the underelying materials (Walch, 1992;Gu and Mitchell, 2013). Since all surfaces may act as substrata for formation of these biofilms (Costerton et al, 1995;Geesey and White, 1990;Marshall, 1980), subsequent attack of materials by microorganisms can take place either directly or indirectly, depending on a combination of factors (Gu et al, 1998;Gu et al, 2011a, b). In addition, other factors affecting the physical environment also influence the extent of bacterial adhesion on surfaces, including ionic strength of the solution, type of cation, hydrodynamic force, and surface properties, e.g., hydrophobicity or hydrophilicity.…”

Section: Introdutionmentioning

confidence: 99%

Surface physical roughness correlating to biofilm attachment on galvanized aluminum surfaces by bacteria

Wan

2019

Appl Env Biotechnol

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Microbial biofilm formation on surfaces of materials is important information to better understand the adhesion mechanisms and to prevent bacterial colonization. Atomic force microscopy is a useful tool for examining bacterial biofilms formed on metal surfaces. The objectives of the present study were to evaluate the metal surface properties including roughness for attachment of the bacterium Janthinobacterium lividum isolated from drinking-water catridge and to establish the relationship between surface modification through galvanization and susceptibility to biofilm formation. Four metal coupons used in this study were Al Galvanic 0.3%, 5%, 55% and a pure zinc plate. The results showed that several roughness parameters including autocovariance, Z-range, mean roughness, and maximum height increased with bacterial attachment on the selective metal type surfaces. There was a strong positive correlation between different roughness parameters and the number of bacteria attached on the specific metal types. The highest population number of bacteria was observed on Al Galvanized 55% coupon, which was also the roughest surface among the test coupons with different galvanization treatments. Our data suggest that prevention of bacterial attachment on metal surfaces can be achieved by surface treatment to obtain better morphological characteristics.

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“…Some compounds are more likely to serve as sources of carbon and energy for microbial growth when temperature and humidity are favourable for proliferation of microorganisms [11][12]. In these cases, it is important to choose consolidating treatments on the basis of different degrees of penetration, morphological characteristics, and locations within the timber to be consolidated [13][14].…”

Section: Research Aimsmentioning

confidence: 99%

Protective action against fungal growth of two consolidating products applied to wood

Clausi

Crisci

Russa

et al. 2011

Journal of Cultural Heritage

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The role of microbial biofilms in deterioration of space station candidate materials

Cited by 28 publications

References 33 publications

A Mixture of D-Amino Acids Enhances the Biocidal Efficacy of CMIT/MIT Against Corrosive Vibrio harveyi Biofilm

A Mixture of D-Amino Acids Enhances the Biocidal Efficacy of CMIT/MIT Against Corrosive Vibrio harveyi Biofilm

Surface physical roughness correlating to biofilm attachment on galvanized aluminum surfaces by bacteria

Protective action against fungal growth of two consolidating products applied to wood

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