Bibliografie tematiche / Extracellular polymeric.substances

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Letteratura scientifica selezionata sul tema "Extracellular polymeric.substances"

Autore: Grafiati
Pubblicato: 4 giugno 2021
Ultima modifica: 25 luglio 2025

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Articoli di riviste sul tema "Extracellular polymeric.substances"

1

Li, Ningjie, Linbo Fu, Lei Wu, Zhongwei Chen, and Qi Lan. "Influence of culture conditions on extracellular polymeric substances production by the white rot fungi Phanerochaete chrysosporium." MATEC Web of Conferences 175 (2018): 01004. http://dx.doi.org/10.1051/matecconf/201817501004.

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The extracellular polymeric substances of white rot fungi play an important role in the adsorption of heavy metals, but the influence of culture conditions on extracellular polymeric substances production is still unknown. In this paper, we researched on the influence of temperature, incubation time, the rotational speed and the inoculation volume on the yield of extracellular polymeric substances produced by Phanerochaete chrysosporium, a model strain of white rot fungi. The results show that the optimum culture conditions for Phanerochaete chrysosporium to produce extracellular polymeric sub
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Bello-Morales, Raquel, Sabina Andreu, Vicente Ruiz-Carpio, Inés Ripa, and José Antonio López-Guerrero. "Extracellular Polymeric Substances: Still Promising Antivirals." Viruses 14, no. 6 (2022): 1337. http://dx.doi.org/10.3390/v14061337.

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Sulfated polysaccharides and other polyanions have been promising candidates in antiviral research for decades. These substances gained attention as antivirals when they demonstrated a high inhibitory effect in vitro against human immunodeficiency virus (HIV) and other enveloped viruses. However, that initial interest was followed by wide skepticism when in vivo assays refuted the initial results. In this paper we review the use of sulfated polysaccharides, and other polyanions, in antiviral therapy, focusing on extracellular polymeric substances (EPSs). We maintain that, in spite of those ear
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Zhang, Xiaoqi, and Paul L. Bishop. "Biodegradability of biofilm extracellular polymeric substances." Chemosphere 50, no. 1 (2003): 63–69. http://dx.doi.org/10.1016/s0045-6535(02)00319-3.

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Chen, Ming‐Yuan, Duu‐Jong Lee, and J. H. Tay. "Extracellular Polymeric Substances in Fouling Layer." Separation Science and Technology 41, no. 7 (2006): 1467–74. http://dx.doi.org/10.1080/01496390600683597.

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Gong, Amy S., Carl H. Bolster, Magda Benavides, and Sharon L. Walker. "Extraction and Analysis of Extracellular Polymeric Substances: Comparison of Methods and Extracellular Polymeric Substance Levels inSalmonella pullorumSA 1685." Environmental Engineering Science 26, no. 10 (2009): 1523–32. http://dx.doi.org/10.1089/ees.2008.0398.

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Li, Qiang, Ge Hu, Peng Song, et al. "Membrane fouling of actual extracellular polymeric substances." IOP Conference Series: Earth and Environmental Science 647 (January 27, 2021): 012112. http://dx.doi.org/10.1088/1755-1315/647/1/012112.

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Ahsan, Nazmul, Kashfia Faruque, Farah Shamma, Nazrul Islam, and Anwarul A. Akhand. "Arsenic adsorption by Bacterial Extracellular Polymeric Substances." Bangladesh Journal of Microbiology 28, no. 2 (2012): 80–83. http://dx.doi.org/10.3329/bjm.v28i2.11821.

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The main objective of this work was to isolate arsenic resistant bacteria from contaminated soil, followed by screening for their ability to adsorb arsenic. Six bacterial isolates (S1 to S6) were obtained from arsenic contaminated soil samples and among these, five (S1, S2, S3, S5 and S6) were characterized as bacillus and the rest one (S4) was cocci depending on shape. All the isolates except S6 produced extracellular polymeric substances (EPS) in the culture medium and displayed arsenic adsorbing activities demonstrated by adsorption of around 90% from initial concentration of 1 mg/L sodium
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Zhang, Guojun, Shulan Ji, Xue Gao, and Zhongzhou Liu. "Adsorptive fouling of extracellular polymeric substances with polymeric ultrafiltration membranes." Journal of Membrane Science 309, no. 1-2 (2008): 28–35. http://dx.doi.org/10.1016/j.memsci.2007.10.012.

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Yu, Guang-Hui, Pin-Jing He, Li-Ming Shao, Duu-Jong Lee, and Arun S. Mujumdar. "Extracellular Polymeric Substances (EPS) and Extracellular Enzymes in Aerobic Granules." Drying Technology 28, no. 7 (2010): 910–15. http://dx.doi.org/10.1080/07373937.2010.490766.

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Cui, You-Wei, Yun-Peng Shi, and Xiao-Yu Gong. "Effects of C/N in the substrate on the simultaneous production of polyhydroxyalkanoates and extracellular polymeric substances by Haloferax mediterranei via kinetic model analysis." RSC Advances 7, no. 31 (2017): 18953–61. http://dx.doi.org/10.1039/c7ra02131c.

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Tesi sul tema "Extracellular polymeric.substances"

1

Ren, Baisha. "Understanding Extracellular Polymeric Substances in Nitrifying Moving Bed Biofilm Reactor." Thesis, Université d'Ottawa / University of Ottawa, 2015. http://hdl.handle.net/10393/32879.

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Abstract (sommario):
Water and wastewater treatment solutions incorporating biofilm systems are becoming increasingly popular due to more stringent regulations pertaining to drinking water and wastewater effluent discharge in Canada and in other parts of the world. As a major component of biofilm, extracellular polymeric substances (EPS) have been considered as an important factor affecting the physical and chemical properties of biofilm. Further, the selected method of EPS extraction and the methods of detecting the composition of the EPS have shown to affect the results of EPS measurements. In this research, pr
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Lubarsky, Helen V. "The impact of microbial extracellular polymeric substances on sediment stability." Thesis, University of St Andrews, 2011. http://hdl.handle.net/10023/2099.

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The main objective of this thesis is to investigate the impact of microbial extracellular polymeric substances (EPS) on sediment stability and the related factors which influence “biogenic stabilisation” as a basis to the prediction of sediment erosion and transport. The ability to make direct and sensitive measurements of the physical properties of the biofilm is a critical demand to further understanding of the overall biostabilisation processes. Therefore, attention has been focused on developing a new technique, Magnetic Particle Induction (MagPI) for measuring the adhesive properties of t
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Akbar, Sirwan. "Gram negative bacterial biofilm formation and characterisation of extracellular polymeric substances." Thesis, University of Huddersfield, 2016. http://eprints.hud.ac.uk/id/eprint/30236/.

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Gram negative bacteria such as Stenotrophomonas maltophilia, Pseudomonas aeruginosa and Citrobacter freundii are often associated with multiple drug resistance and the generation of nosocomial infections. In the current study several clinical strains of theses bacteria (Ps 1, Ps 3, Ps 5, St 18, St 51, St 53 and C. freundii) and two culture collection strains Ps 10421 and St 9203 were evaluated for their ability to generate biofilms and the characteristics of the associated extracellular polysaccharides they produced. The ability of these strains to develop biofilms on a range of media and with
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Pen, Yu. "Conformational and mechanical properties of bacterial mycolic acid and extracellular polymeric substances." Thesis, University of Sheffield, 2011. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.566700.

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Rhodococcus has been used in bioremediation because of its low eco- toxicity, high tolerance to harsh environments, and ability to be cultivated in mixed microbial consortia with certain contaminants as its nutrients. Excretion of extracellular polymeric substances (EPS) allows Rhodococcus to trap and to effectively degrade contaminants. Mycolic acid (MA) which covers the cell wall provides Rhodococcus with a hydrophobic cell surface to contact hydrocarbon contaminant droplets. This work concerns the influence of the conformational change in MA and rhodococcal EPS on their mechanical propertie
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Rode, Alexander. "Isolierung und Charakterisierung von bakteriellen extrazellulären polymeren Substanzen aus Biofilmen / Isolation and characterization of bacterial extracellular polymeric substances from biofilms." Gerhard-Mercator-Universitaet Duisburg, 2004. http://www.ub.uni-duisburg.de/ETD-db/theses/available/duett-09132004-102114/.

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Abstract (sommario):
Microorganisms in biofilms are kept together by extracellular polymeric substances (EPS). The EPS are key molecules for the structure, function and organization of biofilms. Chemical and / or physical isolation methods are being used for the quantitative separation of EPS from biofilms. The yield of EPS depends on the method of isolation. Four different methods of EPS isolation were used in this work (separation by stirring and centrifugation, use of a cation exchange resin, extraction with formaldehyde and extraction with formaldehyde and NaOH) on pure culture biofilms of Pseudomonas aerugino
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Jimoh, Taobat Adekilekun. "Water quality, biomass and extracellular polymeric substances in an integrated algae pond system." Thesis, Rhodes University, 2018. http://hdl.handle.net/10962/57307.

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Abstract (sommario):
Integrated algae pond systems (IAPS) combine the use of anaerobic and aerobic bioprocesses to effect wastewater treatment. Although, IAPS as a technology process offers many advantages including efficient and simultaneous N and P removal, no requirement for additional chemicals, O2 generation, CO2 mitigation, and a biomass with potential for valorization, a lack of technological advancement and the need for large land area, has limited the reach of this technology at industrial scale. In mitigation, peroxonation was introduced as a tertiary treatment unit and its effect on COD and TSS of IAPS
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Bura, Renata. "Properties and occurrence of lipids in extracellular polymeric substances (EPS) of activated sludge flocs." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape3/PQDD_0023/MQ50331.pdf.

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Haslett, Norman G. "Factors influencing the production and nature of surface-associated Pseudomonas fragi extracellular polymeric substances (EPS)." Thesis, Queen's University Belfast, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.295391.

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Leung, Pui-chi, and 梁佩芝. "Effects of extracellular polymeric substances on the bioflocculation and sedimendation of diatom blooms and activated sludge." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2003. http://hub.hku.hk/bib/B29512153.

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Milner, Clare. "The possible role of the extracellular polymeric substances (EPS) of Staphylococcus epidermidis in biomaterial-centered infections." Thesis, University of Aberdeen, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.320235.

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Abstract (sommario):
The aim of this project was to determine the possible role of the extracellular polymeric substances (EPS) of <I>Staphylococcus epidermidis</I> in biomaterial-centered infections. The first part of the project involved the production, isolation, and characterisation of <I>S.epidermidis</I> EPS. A novel method for the isolation of EPS from complex medium was developed which was able to eliminate the problems associated with contamination of bacterial EPS by medium components. Using this method, samples of EPS were obtained from <I>S.epidermidis</I> ATCC 35984 and clinical isolates. In the secon
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Libri sul tema "Extracellular polymeric.substances"

1

Wingender, Jost, Thomas R. Neu, and Hans-Curt Flemming, eds. Microbial Extracellular Polymeric Substances. Springer Berlin Heidelberg, 1999. http://dx.doi.org/10.1007/978-3-642-60147-7.

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Wingender, Jost. Microbial Extracellular Polymeric Substances: Characterization, Structure and Function. Springer Berlin Heidelberg, 1999.

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Bura, Renata. Properties and occurrence of lipids in extracellular polymeric substances (EPS) of activated sludge flocs. National Library of Canada, 2000.

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Neu, Thomas R. Microbial Extracellular Polymeric Substances. Island Press, 1999.

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Flemming, Hans-Curt, Jost Wingender, and Thomas R. Neu. Perfect Slime: Microbial Extracellular Polymeric Substances. IWA Publishing, 2016.

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Microbial extracellular polymeric substances: Characterization, structure, and function. Springer, 1999.

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(Editor), Jost Wingender, Thomas R. Neu (Editor), and Hans-Curt Flemming (Editor), eds. Microbial Extracellular Polymeric Substances: Characterization, Structure and Function. Springer, 1999.

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8

Flemming, Hans-Curt, Jost Wingender, and Thomas R. Neu. Microbial Extracellular Polymeric Substances: Characterization, Structure and Function. Springer Berlin / Heidelberg, 2011.

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Extracellular Polymeric Substances: The Construction Material of Biofilms (Water Science and Technology,). IWA Publishing, 2001.

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Mal, Joyabrata. Microbial Synthesis of Chalcogenide Nanoparticles: Combining Bioremediation and Biorecovery of Chalcogen in the Form of Chalcogenide Nanoparticles. Taylor & Francis Group, 2018.

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Capitoli di libri sul tema "Extracellular polymeric.substances"

1

Decho, Alan W. "Extracellular Polymeric Substances (EPS)." In Encyclopedia of Geobiology. Springer Netherlands, 2011. http://dx.doi.org/10.1007/978-1-4020-9212-1_86.

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Wingender, Jost, Thomas R. Neu, and Hans-Curt Flemming. "What are Bacterial Extracellular Polymeric Substances?" In Microbial Extracellular Polymeric Substances. Springer Berlin Heidelberg, 1999. http://dx.doi.org/10.1007/978-3-642-60147-7_1.

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Wolfaardt, Gideon M., John R. Lawrence, and Darren R. Korber. "Function of EPS." In Microbial Extracellular Polymeric Substances. Springer Berlin Heidelberg, 1999. http://dx.doi.org/10.1007/978-3-642-60147-7_10.

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Sutherland, Ian W. "Polysaccharases in Biofilms — Sources — Action — Consequences!" In Microbial Extracellular Polymeric Substances. Springer Berlin Heidelberg, 1999. http://dx.doi.org/10.1007/978-3-642-60147-7_11.

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Hoffman, Monica, and Alan W. Decho. "Extracellular Enzymes Within Microbial Biofilms and the Role of the Extracellular Polymer Matrix." In Microbial Extracellular Polymeric Substances. Springer Berlin Heidelberg, 1999. http://dx.doi.org/10.1007/978-3-642-60147-7_12.

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Wingender, Jost, Karl-Erich Jaeger, and Hans-Curt Flemming. "Interaction Between Extracellular Polysaccharides and Enzymes." In Microbial Extracellular Polymeric Substances. Springer Berlin Heidelberg, 1999. http://dx.doi.org/10.1007/978-3-642-60147-7_13.

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Neu, Thomas R., and John R. Lawrence. "In Situ Characterization of Extracellular Polymeric Substances (EPS) in Biofilm Systems." In Microbial Extracellular Polymeric Substances. Springer Berlin Heidelberg, 1999. http://dx.doi.org/10.1007/978-3-642-60147-7_2.

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Nielsen, Per H., and Andreas Jahn. "Extraction of EPS." In Microbial Extracellular Polymeric Substances. Springer Berlin Heidelberg, 1999. http://dx.doi.org/10.1007/978-3-642-60147-7_3.

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Sutherland, Ian W. "Biofilm Exopolysaccharides." In Microbial Extracellular Polymeric Substances. Springer Berlin Heidelberg, 1999. http://dx.doi.org/10.1007/978-3-642-60147-7_4.

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Davies, David G. "Regulation of Matrix Polymer in Biofilm Formation and Dispersion." In Microbial Extracellular Polymeric Substances. Springer Berlin Heidelberg, 1999. http://dx.doi.org/10.1007/978-3-642-60147-7_5.

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Atti di convegni sul tema "Extracellular polymeric.substances"

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Stadler, Reinhard, Wolfram Fuerbeth, Mariel Grooters, Claudia Janosch, Andrzej Kuklinski, and Wolfgang Sand. "Studies on the Application of Microbially Produced Polymeric Substances as Protecting Layers against Microbially Influenced Corrosion of Iron and Steel." In CORROSION 2010. NACE International, 2010. https://doi.org/10.5006/c2010-10209.

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Abstract (sommario):
Abstract The contribution of biofilms to corrosion of metals and alloys, termed microbially influenced corrosion (MIC), is still a challenge for research in the field of corrosion protection. In order to inhibit or prevent MIC, one promising route can be to inhibit the adhesion of single cells. The processes of adhesion and desorption of microorganisms are known to be induced and mediated by various (bio-)molecules. The aim of this project is to identify and to investigate substances appropriate to inhibit the formation of biofilms of sulphate reducing bacteria (SRB). For this purpose, so-call
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Videla, Héctor A., Sandra G. Gómez de Saravia, and Mónica F. L. de Mele. "Relationship between Biofilms and Inorganic Passive Layers in the Corrosion of Copper-Nickel Alloys in Chloride Environments." In CORROSION 1989. NACE International, 1989. https://doi.org/10.5006/c1989-89185.

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Abstract The electrochemical behavior of 70/30 and 90/10 alloys in artificial seawater and in sterile culture media added with chloride and sulphide is analysed. The synergistic effect of the simultaneous presence of these anions on the corrosion process of cupronickels is also studied in the current paper. Mixed cultures of facultative aerobic (Vibrio alginolyticus) and anaerobic (sulfate reducing bacteria) microorganisms were used to examine the corrosion behavior of these alloys in organically polluted media. The uneven distribution of bacteria mixed up with corrosion products reduces the p
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de França, F. P., D. S. B. Dias, I. R. de Melo, and M. T. S. Lutterbach. "Effect of Introduction of CO2 on the Formation of Biofilms/Biocorrosion on AISI 1018 Carbon Steel Surfaces Exposed in a Dynamic System." In CORROSION 2009. NACE International, 2009. https://doi.org/10.5006/c2009-09386.

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Abstract Biofilms are microorganism communities immobilized together in an extracellular polymeric substance (EPS) matrix of microbial origin, and represent the majority of microbial life in terms of quantity and activity. Biofilms are typically composed of water, microorganisms, EPS, retained particles, and dissolved or adsorbed substances. Sessile microorganisms accelerate various reactions during electrochemical corrosion of materials. The corrosion process of metals exposed to seawater is characterized by different factors such as temperature, salinity, oxygen concentration, carbon dioxide
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Dubey, R. S., R. Sagar Dubey, S. N. Upadhyay, and T. K. G. Namboodhiri. "Control of Biofilm Formation in Marine Environment Using Some N2O2 Donor Schiff Bases." In CORROSION 1997. NACE International, 1997. https://doi.org/10.5006/c1997-97220.

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Abstract The adhesion of microorganisms onto materials surface mediated by extracellular polymeric substances (EPS) lead to an important modification of the metal-solution interface. The requirement of modem civilization with the hightened sense of environmental responsibilities and quality of life can be met by using some eco-friendly microbiocides with different spectra of activity. Some n2o2 donor schiff base compounds were synthesized and characterized by IR, NMR and ESR spectroscopy. These compounds were found effective in controling the growth of biofilm of E. соli, Pseudomonas fluoresce
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Videla, Héctor A., Liz Karen Herrera, and Robert G. Edyvean. "An Updated Overview of SRB Induced Corrosion and Protection of Carbon Steel." In CORROSION 2005. NACE International, 2005. https://doi.org/10.5006/c2005-05488.

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Abstract This paper offers an overview of sulfate-reducing bacteria (SRB) induced corrosion and protection of carbon steel in marine media. The complexity of the local environment at the steel/seawater interface is enhanced in the presence of microorganisms and their extracellular polymeric substances (EPS). As a consequence of the biofilm heterogeneity, areas with different ion concentrations are formed and the development of corrosion product layers of dissimilar protective characteristics occurs. Electrochemical aspects, microbial interactions within biofilms, the significance of medium com
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Videla, Héctor A., and Liz Karen Herrera. "The Influence of Microorganisms on the Corrosion and Protection of Metals. an Overview." In CORROSION 2011. NACE International, 2011. https://doi.org/10.5006/c2011-11218.

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Abstract Microorganisms are able to drastically change the electrochemical conditions at the metal/solution interface by biofilm formation including bacterial consortia and extracellular polymeric substances (EPS) as the main components. The presence of biofilms generally facilitates the initiation of localized corrosion but this effect can be reversed to corrosion inhibition. Microbial corrosion inhibition and its counter process, microbiologically influenced corrosion (MIC) are rarely linked to a single mechanism or to a single species of microorganisms. In recent years microbial inhibition
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Harmon, Amanda, and Michael Snow. "Case Study: Effectiveness of Enzymes in Drilling Fluid for Mitigation of Biofilms." In CORROSION 2019. NACE International, 2019. https://doi.org/10.5006/c2019-13181.

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Absrract It is standard practice to use a coating system as the primary defense in preventing external corrosion on pipelines. Additionally, pipelines installed by Horizontal Directional Drilling (HDD), also require special coatings which have high abrasion resistance to minimize damage during pull through. However, given the aggressive nature of the installation method, some degree of compromised coating is inevitable. It is speculated that corrosion at the coating holidays will be suppressed through application of cathodic protection (CP). Considering the uncertainty of effective CP at HDDs,
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Chen, Yongxu, Tesfaalem Haile, Peyman Derik Vand, and John Wolodko. "Detection of Biofilm Forming Microbes Using Electrochemical Methods." In CORROSION 2020. NACE International, 2020. https://doi.org/10.5006/c2020-15087.

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Abstract Microbiologically Influenced Corrosion (MIC) and biofouling are major challenges to operators who manage water systems in the oil &amp; gas and other sectors. Key to these threats is the formation and accumulation of biofilms in piping systems due to the agglomeration of both biotic components (e.g. microorganisms such as bacteria, archea and extracellular polymeric substances) and abiotic materials (e.g. inorganic solids). These biofilms adhere to inner pipe wall surfaces, and evolve over time depending on surrounding environmental conditions. Manual detection of biofilm formation an
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de Romero, Matilde F., Reinaldo Ortiz, Olga Pérez de Márquez, and María E. Romero-González. "Use of Ftir in Situ Technique to Evaluate MIC by SRB." In CORROSION 2007. NACE International, 2007. https://doi.org/10.5006/c2007-07531.

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Abstract Infrared Spectroscopy Technique based on diffuse, internal and external reflectance allows both, the performance of a general qualitative analysis of the structure and the identification of organic and inorganic compounds, through the excitation of molecular vibrations by light absorption. Through the technique, vibrational data is obtained from the surface film, determining the nature of the molecules adsorbed on the metallic surface. Different researchers have given their attention and efforts to the study of the interfase region, by using Fourier Transformed Infrared Spectroscopy (
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Quintanilla, Cindy, Brooke Walter-Lakes, Nadia Evans-Lambert, and Anna Bezryadina. "Study of Bacterial Biofilm Formation with Optical Tweezers." In Optical Manipulation and Its Applications. Optica Publishing Group, 2025. https://doi.org/10.1364/oma.2025.atu1d.5.

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Abstract (sommario):
When the environmental conditions become hostile, bacteria secret extracellular polymeric substance (EPS) and form biofilm. In our work, we use optical tweezers to study biofilm formation and develop optical methods for biofilm regulation.
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Rapporti di organizzazioni sul tema "Extracellular polymeric.substances"

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Cender, Clinton, Catherine Thomas, Martin Page, et al. Rapid algae flotation techniques. Engineer Research and Development Center (U.S.), 2023. http://dx.doi.org/10.21079/11681/47704.

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Dissolved air flotation (DAF) is an effective technique for algae separation following the application of flocculants and coagulants. Some harmful algae produce mucilage or extracellular polymeric substances useful for flotation. This study evaluated natural polysaccharides to determine effects on algal flotation with DAF. Food-grade gums (xanthan gum, guar gum, gum arabic, gellan gum, and diutan gum) were tested with cyanobacteria cultures singly and in combination with commercial flocculants (including Tramfloc 222 and Tramfloc 300). Gum arabic alone had no effect when evaluated at concentra
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