Interaction of Sulfate-Reducing Bacteria with Molybdenum Dissolved from Sputter-Deposited Molybdenum Thin Films and Pure Molybdenum Powder

Chen, G.; Ford, Tim; Clayton, Clive R.

doi:10.1006/jcis.1998.5578

Cited by 39 publications

(27 citation statements)

References 19 publications

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“…A spectral review of the spent culture medium to which molybdate was added revealed peaks at 314, 396, and 468 nm which is in agreement to that reported by Chen et al (1998). The difference in color reported by Chen et al (1998) and that reported here could be attributed to concentration of the molybate-sulfide complex. By means of verifying the presence of molybdate-sulfide complex, absorbancy of the cultures was determined at various periods of growth (Fig.…”

Section: Reduction Of Molybdatesupporting

confidence: 92%

“…The reduction with molybdate added to the culture media of SRB is similar to the reactions described for the production of MoS 2 following the addition of elemental Mo (s) to the culture media (Chen et al 1998). The reduction of Mo(VI)O 4 2-is a two step process.…”

Section: Resultsmentioning

confidence: 99%

“…In a distinctly different experiment, Chen et al (1998) added elemental molybdenum to a culture of D. desulfuricans ATCC 7757 and they observed the formation of an orange color which had adsorption peaks at 314, 396, and 468 nm. Through a series of experiments, they determined that in the appropriate chemical environment, sulfide reduced Mo(VI)O 4 2-to Mo(V)-S producing the orange solution and that Mo(V)-S is analogous to Mo(V)-cysteine and Mo(V)-thiocyanate.…”

Section: Reduction Of Molybdatementioning

confidence: 98%

“…Through a series of experiments, they determined that in the appropriate chemical environment, sulfide reduced Mo(VI)O 4 2-to Mo(V)-S producing the orange solution and that Mo(V)-S is analogous to Mo(V)-cysteine and Mo(V)-thiocyanate. Using X-ray photoelectron spectroscopy, Chen et al (1998) demonstrated that molybdenum disulfide was produced by D. desulfuricans in media amended with elemental molybdenum.…”

Section: Reduction Of Molybdatementioning

confidence: 99%

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Reduction of molybdate by sulfate-reducing bacteria

Biswas

Woodards

et al. 2009

Biometals

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Molybdate is an essential trace element required by biological systems including the anaerobic sulfate-reducing bacteria (SRB); however, detrimental consequences may occur if molybdate is present in high concentrations in the environment. While molybdate is a structural analog of sulfate and inhibits sulfate respiration of SRB, little information is available concerning the effect of molybdate on pure cultures. We followed the growth of Desulfovibrio gigas ATCC 19364, Desulfovibrio vulgaris Hildenborough, Desulfovibrio desulfuricans DSM 642, and D. desulfuricans DSM 27774 in media containing sub-lethal levels of molybdate and observed a red-brown color in the culture fluid. Spectral analysis of the culture fluid revealed absorption peaks at 467, 395 and 314 nm and this color is proposed to be a molybdate-sulfide complex. Reduction of molybdate with the formation of molybdate disulfide occurs in the periplasm D. gigas and D. desulfuricans DSM 642. From these results we suggest that the occurrence of poorly crystalline Mo-sulfides in black shale may be a result from SRB reduction and selective enrichment of Mo in paleo-seawater.

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Section: Reduction Of Molybdatesupporting

confidence: 92%

Section: Resultsmentioning

confidence: 99%

Section: Reduction Of Molybdatementioning

confidence: 98%

Section: Reduction Of Molybdatementioning

confidence: 99%

See 2 more Smart Citations

Reduction of molybdate by sulfate-reducing bacteria

Biswas

Woodards

et al. 2009

Biometals

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“…In a previous study, various concentrations of molybdate ranging from 0.1 to 20 mM were added, and Mo powder and sputter-deposited Mo thin Ðlms were exposed to an SRB culture (Desulfovibrio desulfuricans). 10 It was found that 0.1 mM molybdate * Correspondence to :…”

Section: Introductionmentioning

confidence: 99%

X-ray photoelectron spectroscopy analysis of Mo metal surface exposed to sulfate-reducing bacteria

Chen

Clayton

1999

Surf. Interface Anal.

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Interactions of Desulfovibrio desulfuricans biofilm with 2205 duplex stainless steel – the role of microstructure

Michalska

Chmiela

Simka

2018

Materials & Corrosion

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The paper presents the results on sulfate‐reducing bacteria (SRB) induced corrosion of 2205 duplex stainless steel (DSS) in as‐received and thermally aged conditions. Biofilm formation and damage process stimulated by DSM642 strain were analyzed with reference to its metabolic activity and to the surface characterization of structure and configuration of the biofilm. Electrochemical techniques were applied to monitor bacterial attachment to the steel surface and to determine the effect of bacteria on the passivity and corrosion resistance of 2205 DSS. Results demonstrated that MIC behavior was strongly affected by the microstructure and phase composition of the steel. Enhanced biofilm interactions were mainly limited to the austenitic phase, as well as primary (γ) and intergranular (γ2) austenite was found to be more prone to bacterial attack. Thermal aging of 2205 DSS led to the enhanced bacterial attack. Thermally aged samples were characterized by quicker and more intensive biofouling. Pitting and crevice‐type attacks were predominant on the thermally aged samples. It has been found that the presence of DSM642 biofilm changed the corrosion mechanism of 2205 DSS in 3.5% NaCl and the SRB‐induced selective attack was evident even for the material in phase‐balanced conditions.

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Interaction of Sulfate-Reducing Bacteria with Molybdenum Dissolved from Sputter-Deposited Molybdenum Thin Films and Pure Molybdenum Powder

Cited by 39 publications

References 19 publications

Reduction of molybdate by sulfate-reducing bacteria

Reduction of molybdate by sulfate-reducing bacteria

X-ray photoelectron spectroscopy analysis of Mo metal surface exposed to sulfate-reducing bacteria

Interactions of Desulfovibrio desulfuricans biofilm with 2205 duplex stainless steel – the role of microstructure

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