Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 43 for “"Biofilm development"”.
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Microbial Biofilm Development and Electron Transfer in Electrochemical Systems
… for the past 20 years that has lead to the development of emerging topics such as microbial electrochemistry, biofilm formation in electrochemical systems and alternative energy technologies applied in environmental processes. In this study we present procedures that aim for further …
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Biofilm development in streams draining from contrasting land use systems.
… biotic and abiotic processes associated with biofilms in the aquatic environment may play an important role within ecosystems. This study was conducted to investigate the influence of different land use systems and their effect on colonizing and developing aquatic biofilms. On conclusion of …
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Effect of iron and sodium chloride on biofilm development of stenotrophomonas maltophilia
… of S. maltophilia are able to produce biofilms, which complicates these infections and provides resistance to antimicrobials. Factors such as ferric chloride (FeCl3), and sodium chloride (NaCl) have been shown to inhibit the biofilm development of another respiratory pathogen, …
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Metabolomic insights into Pseudomonas aeruginosa behavior, secretome, and biofilm development using mass spectrometry imaging
Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2027-08-01
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Role of msaA Gene in Regulation of the msaABCR Operon and Biofilm Development in <i>Staphylococcus aureus</i>
… wide variety of diseases ranging from chronic biofilm associated infection to acute life threatening infection such as bacteremia, pneumonia, osteomyelitis, or endocarditis, despite the progress with antibiotics used in the treatment of bacterial infections. Furthermore, increased use of …
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An Examination of the Function and the Transcriptional Regulation of the Bps Polysaccharide in Bordetella pertussis Pathogenesis and Biofilm Development
… communities encased in a matrix called biofilms. These aggregates of sessile bacteria are increasingly being associated with multiple human infections. However, the bacterial factors that contribute to biofilm formation are poorly understood. The identification of biofilm promoting …
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Investigation of biofilm development by antibiotic resistant urinary tract infection pathogens and evaluation of antimicrobial activity of Manuka honey on Escherichia coli CTX-M-15 biofilms
… effective treatment options. In addition, biofilms are another significant health care issue: they act as a protective cover for infectious microbes. They are also hard to remove: they require a much higher dose of antibiotics than planktonic organisms. When treating biofilm-associated …
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Simulation studies to profile development and control of mixed-culture static and dynamic biofilms during extended raw beef processing operations using combinations of nanobubble water and peracetic acid
Biofilms are the dominant mode of bacterial growth in nature, known for their exceptional resilience and ability to withstand common cleaning and sanitizing procedures, thereby posing significant challenges for the food industry in maintaining safety and quality standards. Multiple studies have …
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Dynamics of biofilm processes in an annular reactor
… is a general term referring 1 to the undesirable development of biofilms on surfaces exposed to aqueous environments. In water distribution systems and heat transfer equipment, biological fouling can cause substantial energy losses resulting from increased fluid frictional resistance and increased …
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Investigation of Biofilm Development by Antibiotic Resistant Urinary Tract Infection Pathogens and Evaluation of the Antimicrobial Activity of Natural Products on Carbapenem-Resistant Escherichia coli IMP and Klebsiella pneumoniae NDM-1.
… behind the ability of these pathogens to form biofilms is crucial to the treatment of the infections caused by these pathogenic bacterial strains. Resistance to carbapenems is of major concern because they are typically used as a treatment of last resort for infections associated with UTI …
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Impact of Chloramination on the Development of Oligotrophic Biofilms
… effectiveness of monochloramine disinfection on biofilm control and ii) characterize the architecture and community development of laboratory-grown oligotrophic biofilms over a two-month period. Biofilm development and disinfection were realized in Center for Disease Control (CDC) reactor systems …
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Evolution and phenotypic diversification in serratia marcescens biofilms
The release of cells from a biofilm to the surrounding environment is poorly understood and the importance of this stage of biofilm development has only recently been realized. A key part of this process is the generation of phenotypic variants in the biofilm dispersal population. This thesis …
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Ozone Inactivation and Attachment of Listeria Monocytogenes to Abiotic Surfaces
… was not necessary for attachment and biofilm development. Scanning Electron Micrograph observations of L. monocytogenes gown on stainless steel chips for 24 hours and four days showed many cell aggregates formed on the surface, however no matrix of exopolymeric substances was seen.
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Mechanism of Candida Albicans Biofilm and Virulence Inhibition By A Bacterial Secreted Factor
… have a profound impact on health, including the development of infections. Exploitation of these polymicrobial interactions has the potential to provide novel treatment and prevention strategies for infectious diseases. <em>Enterococcus faecalis</em>, a Gram-positive bacterium, and <em>Candida …
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The Roles and Regulation of the Redundant Phenazine Biosynthetic Operons in Pseudomonas aeruginosa PA14
… also have dramatic effects on the structural development of multicellular communities of P. aeruginosa, generally referred to as biofilms. How phenazine production is regulated in response to environmental cues to allow for this functional diversity is still poorly understood. Pseudomonas …
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Experimental and theoretical investigation of the role of nanofibrous topography feature size on adhesion of Candida albicans
Biofilm formation on medical devices is responsible for a substantial portion of healthcare associated infections with approximately 99,000 deaths and estimated financial burden of $28-$45 billion annually. Given the long-standing challenges of biofilm eradication, physical and chemical surface …
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Bacterial community composition in stream biofilms is influenced by algal response to varying light and phosphorus ratios
… that respond to algal exudates. In this study, development of periphyton biofilms in an experimental stream system was monitored across different light and phosphorus levels. Samples were collected every two days for community and chemistry analyses. Bacterial communities were monitored using …
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Mathematical Models of Biofilm in Various Environments
Microbial biofilms are defined as clusters of microbial cells living in self-produced extracellular polymeric substances (EPS), which always attached to various kinds of surfaces. In this thesis, we studied several mathematical models of biofilm in the human body and marble environment. Some …
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Functions of alternative ClpP subunits in Pseudomonas aeruginosa
… generated by these enzymes in P. aeruginosa development. Biochemical analysis establishes that PaClpP2 is only active as a peptidase when it is part of a PaClpP1₇P2₇ heterocomplex. Furthermore, multiple lines of evidence support that P. aeruginosa cells have two distinct ClpP peptidase …
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Computational Modeling of Bacterial Biofilms
… at single-cell level that drive the structural developments in growing biofilms. Our individual-based model incorporates the essential biophysical processes of cell growth and division, viscous drag, attractive-repulsive cell-surface interactions, attractive-repulsive cell-cell interactions and …
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