Effect of Quarum Sensing on the Biofilm Formation and Microbially Induced Corrosion for Sulfate Reducing Bacteria PDF Download

Author: Vaibhav Handa
Publisher:
ISBN:
Category :
Languages : en
Pages : 0

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Book Description
Sulfate reducing bacteria (SRB) have been reported to obliterate robust metals, including steel. They use a process known as microbiologically influenced corrosion (MIC) to damage civil infrastructure, including bridges and water pipelines. MIC accounts for up to ten percent of the total corrosion costs to the world economy. Quorum sensing (QS) is an inherent mechanism that allows microcosmic communications among the SRB cells. As a result, QS-mediated signaling induces genotypic and phenotypic changes regarding biofilm formation and MIC. The current study addresses the inducing effect of QS molecules (e.g., n-Acetyl homoserine lactone; AHL) on MIC resistance of conformal graphene (Gr) coatings used to protect underlying polycrystalline copper surfaces from corrosive effects of Oleidesulfovibrio alaskensis G20 (OA-G20). Graphene was chosen as a model for emerging protective coatings based on two dimensional (2D) materials. The external augmentation of AHL molecules greatly reduces the lag time required for OA-G20 cells to achieve peak corrosion rates. The transcriptomic analysis revealed that a total of 394 genes were differentially expressed in AHL supplemented condition compared to control, thus promoting the predominant metabolic regulation towards up-regulation pathways. The up-regulated and down-regulated genes were related to phenylalanine-tRNA ligase alpha subunit (4.4-folds - Dde_2635) and metallophos_3 domain-containing protein (4-folds – Dde_3615), respectively. The amino acid biosynthetic pathways and metal containing domain related proteins showed the maximal differential gene expression among all the genes. This fundamental knowledge can be used to design Gr-coatings that rationally consider the QS mechanisms in SRB.

Author: Brenda J. Little
Publisher: John Wiley & Sons
ISBN: 0470112441
Category : Science
Languages : en
Pages : 295

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Book Description
A multi-disciplinary, multi-industry overview of microbiologically influenced corrosion, with strategies for diagnosis and control or prevention Microbiologically Influenced Corrosion helps engineers and scientists understand and combat the costly failures that occur due to microbiologically influenced corrosion (MIC). This book combines recent findings from diverse disciplines into one comprehensive reference. Complete with case histories from a variety of environments, it covers: Biofilm formation Causative organisms, relating bacteria and fungi to corrosion mechanisms for groups of metals Diagnosing and monitoring MIC Electrochemical techniques, with an overview of methods for detection of MIC The impact of alloying elements, including antimicrobial metals, and design features on MIC MIC of non-metallics Strategies for control or prevention of MIC, including engineering, chemical, and biological approaches This is a valuable, all-inclusive reference for corrosion scientists, engineers, and researchers, as well as designers, managers, and operators.

Author: Cody Jay Allen
Publisher:
ISBN:
Category :
Languages : en
Pages : 0

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Book Description
The annual financial impact on the oil and gas industry amounts to tens of billions of dollars, attributable to treatment costs directly and indirectly linked to corrosion. Approximately 20% of these corrosion-related damages are attributed to microbial-induced corrosion. During microbial-induced corrosion, microbes typically promote conditions that produce acids, converting metal oxide layers to a less protective metal sulfide or localizing anode and cathodes on a material. Due to the different disciplines required to research microbial-induced corrosion, different vocabularies and research approaches occur. The lack of clarity resulting from this situation, in turn, causes many questions to go unanswered. Notably, electroactive bacteria are not commonly studied transiently, meaning their growth dynamics' relationship to electrochemical activity over time is poorly understood. The major drawback is that no dynamic live studies are performed, making the distinction between biofilm-influenced corrosion and abiotic corrosion hard to differentiate. The electrode-biofilms interface is either optically or electrochemically researched. The disconnection between biology and electrochemical activity leads to a series of unknown parameters that link them. Lack of understanding of real-time interactions at bio-interface leads to microbial-induced corrosion knowledge gap. Here, we utilize a specially designed biological microelectromechanical microfluidic device, two-working electrode Scanning Electrochemical Microscopy, and molecular imprinted polymer-based sensors to improve the understanding of transient bio-interface interactions. These devices and techniques were established to study three domains: biofilm probing, biofilm dynamics, and biofilm sensing during the initial stages of microbial-induced corrosion. By utilizing these tools, we were able to observe a direct real-time correlation between the morphological characteristics of biofilm and the escalation of corrosion rates in microbial-induced corrosion. Additionally, we also observed the spatial distribution of redox-active quasi-quorum sensing molecules and their direct correlation to the heightened corrosion rates. This research is a significant advancement in our understanding of the complex interplay between microbial activity and corrosion processes, and it provides crucial insights for devising effective corrosion mitigation strategies in a wide range of industrial settings.

Author: Ajay K. Singh
Publisher: Springer Nature
ISBN: 9811580197
Category : Technology & Engineering
Languages : en
Pages : 136

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Book Description
This brief covers case studies on Microbial Induced Corrosion (MIC) and its mitigation. After reviewing the basics of corrosion, it focuses on MIC. MIC is a special type of electrochemical corrosion in which the presence of microbes and bacteria alters the chemistry of liquid media so as to make them more corrosive. These changes are harmful to metallic equipment, processing machinery, marine vessels, etc. in an environment that is host to a wealth of microorganisms. A 2007 US survey estimated corrosion-related damages to cost $276 billion a year, roughly 50% of which are due to MIC. The industries most affected by MIC are power production, oil exploration, transportation and storage, water distribution and more generally all industries involving marine environments. However, means for effectively preventing and controlling MIC are poorly understood. As such, the book’s later chapters address various mechanisms/processes that show promise with regard to MIC mitigation. Lastly, the book discusses the strategies currently being explored to mitigate MIC using green technologies.

Author: Surajit Das
Publisher: Elsevier
ISBN: 0323983081
Category : Science
Languages : en
Pages : 774

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Book Description
Understanding Microbial Biofilms: Fundamentals to Applications focuses on the microbial biofilms of different environments. The book provides a comprehensive overview of the fundamental aspects of microbial biofilms, their existence in nature, their significance, and the different clinical and environmental problems associated with them. The book covers both the fundamentals and applications of microbial biofilms, with chapters on the introduction to the microbial community and its architecture, physiology, mechanisms and imaging of biofilms in nature and fungal, algal, and bacillus biofilm control. In addition, the book highlights the molecular and biochemical aspects of bacterial biofilms, providing a compilation of chapters on the bacterial community and communication from different environments. Finally, the book covers recent advancements in various aspects of microbial biofilms including the chapters on their biotechnological applications. All the chapters are written by experts who have been working on different aspects of microbial biofilms. Illustrates fundamental aspects surrounding microbial biofilms, along with recent advancements Provides an overview on the principal aspects of biofilms, i.e., formation, regulation, distribution, control, and application Updates on the progress on biofilm regulation through ‘omics’ Serves as a classical manual for all researchers, academicians, and students who would want complete insights on biofilms in a single resource Covers all recent advancements and amendments on microbial biofilms

Author: Siddhardha Busi
Publisher: CRC Press
ISBN: 1040133061
Category : Medical
Languages : en
Pages : 319

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Book Description
Aquatic Ecosystems and Microbial Biofilms: Significance, Dynamics, Prevention and Control provides a systematic introduction and review of state-of-the-art information on microbial biofilms in aquatic ecosystems and their control. The book is designed and developed to understand the microbial biofilms in aquatic ecosystems, their role, and the control strategies. The contents of the book are well discussed to get state-of-art knowledge on various topics such as the role of biofilms in marine ecosystems, microbial biofilms, and drinking water systems, biofilms in biofouling and biocorrosion, beneficial aspects of biofilms such as biogeochemical cycling, wastewater treatment, and in biodeterioration of organic materials. This book also provides comprehensive knowledge and in-depth scientific information on the role of biofilms and their contribution to antibiotic resistance, and also advanced technologies to understand biofilms such as metagenomics. The book offers comprehensive coverage of the most essential topics, including: Microbial biofilms in aquatic ecosystems. New horizons to understand the role of biofilms in biofouling and corrosion and their control measures. Beneficial role of aquatic biofilms such as in biogeochemical cycling,wastewater treatment, and biodeterioration of organic materials. Various strategies to collaborate interdisciplinary schemes worldwide to design and develop new methods for cleaner drinking water, and information on advanced techniques such as metagenomics to understand the diversity and functional role of aquatic biofilms. This book serves as a reference book for scientific investigators who would like to study biofilms in aquatic ecosystems, as well as researchers developing methodology in this field to study biofilm formation in aquatic ecosystems, their advantages and disadvantages, and control strategies.

Author: Hans-Curt Flemming
Publisher: Springer Science & Business Media
ISBN: 3642765432
Category : Technology & Engineering
Languages : en
Pages : 194

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Book Description
Microbial growth and contamination ("Biofouling") in water systems represents a significant threat to the quality of waters produced for the microelectronic, pharmaceutical, petroleum, paper, food and other manufacturing industries. Biofouling can lead to biologically induced corrosion ("Biocorrosion"), which can cause severe damage to the equipment. Both biofouling and biocorrosion are frequently not recognized in time, underestimated, or linked with the wrong causes. The book represents a new approach by introducing biofilm properties and dynamics as basic principles of biofouling and biocorrosion, thus providing a better understanding and the means of fighting the undesired effects of biofilms. The most important features are: Case histories of biofouling in water treatment.- Detection and monitoring of biofouling.- Reverse osmosis membrane biofouling.- Biocide efficacy and biofouling control.- Plant design considerations for preventing biofouling.- Case histories of biocorrosion.- Detection, monitoring, control and prevention of biocorrosion.- Fundamentals of biofouling and biocorrosion mechanisms.

Author: Hua Wang
Publisher:
ISBN:
Category : Aluminum alloys
Languages : en
Pages : 160

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Book Description
This dissertation describes the effects of microbial attachment and biofilm formation on microbiologically influenced corrosion (MIC). The participation of microbes in the corrosion process includes initial attachment, biofilm formation, localized environment changing, and eventually, corrosion. Initial microbial attachment is considered as the first step of MIC. In the first part of this study, the initial attachment of three bacteria, Pseudomonas aeruginosa, Escherichia coli, and Pseudomonas putida, on two substrates, glass and octadecyltrichlorosilane (OTS) modified glass, was examined in flow chambers. The attachment trend on glass could be explained by the secondary minima and energy barriers as predicted by the extended Derjaguin-Landau-Verwey-Overbeek (XDLVO) theory. This part of study generated some insights into the effects of cell and substrate surface properties on initial bacterial attachment. In addition to the surface and medium properties, other factors such as the shear associated flow conditions could be one of the most important factors affecting initial bacterial attachment as well. In the second part of this study, four bacteria, Staphylococcus epidermidis, P. aeruginosa, P. putida, and E. coli, were examined for their attachment to glass and OTS modified glass under different shears. The results from this part of the study suggested that, without complications from surface features/extracellular polymeric substances (EPS), the analysis based on the XDLVO theory could provide a basis for understanding shear effect on initial bacterial attachment. The critical shear stress, a measure of bacterial attachment strength, was found to be correlated with the maximum attractive force towards the secondary energy minimum. As microbes attach and develop into biofilm on metal surfaces, the localized environment of metal surfaces could be changed by the influence of microbial metabolism. The third part of this study is intended to evaluate how early stage of biofilm formation affects carbon steel and aluminum alloy corrosion. In this part, aluminum alloy (Al 3003 H14) coupons and carbon steel (CS C1010) coupons were used, along with two common bacterial strains, P. aeruginosa and E. coli. Results showed that bacterial attachment strength and subsequent biofilm development could strongly influence metal corrosion behaviors. In the fourth part of this study, corrosion behaviors of carbon steel (CS C1010) and stainless steel (SS 304) in the presence of iron-oxidizing bacteria: Acidithiobacillus ferrooxidans was examined. Results showed that, due to the extremely high oxidizing rate of Fe(II) to Fe(III), A. ferrooxidans cells can accelerate CS corrosion, while SS 304 showed a good resistance to corrosion. The accelerated CS corrosion was likely related to the metabolism of A. ferroxidans, but not to the attachment strength and biofilm development of A. ferroxidans. In the last part, corrosion behaviors of aluminum alloy (Al 2024) in the presence of Trichoderma reesei and Aspergillus niger were evaluated. Results showed that T. reesei or A. niger could not firmly attach to Al coupon surfaces in an aqueous environment, and they could not corrode Al 2024 under our experimental conditions.

Author: Reza Javaherdashti
Publisher: Elsevier
ISBN: 0128162996
Category : Technology & Engineering
Languages : en
Pages : 162

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Book Description
Biological Treatment of Microbial Corrosion: Opportunities and Challenges explores the latest biological approaches to microbial corrosion and its inhibition. The book provides comprehensive information on the current knowledge of microbes involved in corrosion and their mechanisms of action on corrosion induction and inhibition. This information is helpful for a wide range of audiences, from university researchers, to industry specialists. The book discusses foundational information about corrosion and microbiologically influenced corrosion and its importance. Other chapters provide an in-depth review of corrosion causing microorganisms, their properties and their mechanism of involvement in MIC. Updated findings on the biological treatment of corrosion are addressed, as are future opportunities and challenges that could lead to prosperous, sustainable and secure industrial application of these techniques. Provides a detailed overview of the fundamental concepts of corrosion Discusses MIC, including its characteristics, properties and modelling Previews the opportunities and challenges faced by the utilization of biological treatments for corrosion

Author: Naomi Balaban
Publisher: Springer Science & Business Media
ISBN: 3540738533
Category : Medical
Languages : en
Pages : 186

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Book Description
The number of patients affected by and dying from what can be considered as a "biofilm disease" is higher than heart disease and cancer combined. Thus, this is a hugely important work that describes the molecular mechanisms of cell-to-cell communication among bacterial cells in a biofilm, the development of antibiofilm inhibitors such as quorum-sensing inhibitors, and the use of biofilm inhibitors to prevent and treat bacterial infections in humans and other animals.