Academic literature on the topic 'Protein fouling'

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Journal articles on the topic "Protein fouling"

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Peiris, R. H., H. Budman, R. L. Legge, and C. Moresoli. "Assessing irreversible fouling behavior of membrane foulants in the ultrafiltration of natural water using principal component analysis of fluorescence excitation-emission matrices." Water Supply 11, no. 2 (April 1, 2011): 179–85. http://dx.doi.org/10.2166/ws.2011.025.

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Natural river water is comprised of different foulant components such as natural organic matter and colloidal/particulate matter. Both individual and combined contributions of these foulant components results in different fouling behaviour. The ability to characterize these contributions that lead to reversible and irreversible membrane fouling would be beneficial for the implementation of fouling monitoring and control strategies for membrane-based drinking water treatment operations. A fluorescence excitation-emission matrix and principal component analysis-based approach was able to qualita
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Yan, Linlin, Ruixue Li, Yu Song, Yanping Jia, Zheng Li, Lianfa Song, and Haifeng Zhang. "Characterization of the Fouling Layer on the Membrane Surface in a Membrane Bioreactor: Evolution of the Foulants’ Composition and Aggregation Ability." Membranes 9, no. 7 (July 16, 2019): 85. http://dx.doi.org/10.3390/membranes9070085.

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In this study, the characteristics of membrane foulants were analyzed with regard to morphology, composition, and aggregation ability during the three stages of transmembrane pressure (TMP) development (fast–slow–fast rise in TMP) in a steady operational membrane bioreactor (MBR). The results obtained show that the fouling layer at the slow TMP-increase stage possessed a higher average roughness (71.27 nm) and increased fractal dimension (2.33), which resulted in a low membrane fouling rate (0.87 kPa/d). A higher extracellular DNA (eDNA) proportion (26.12%) in the extracellular polymeric subst
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Chen, Yian, Montserrat Rovira-Bru, Francesc Giralt, and Yoram Cohen. "Hydraulic Resistance and Protein Fouling Resistance of a Zirconia Membrane with a Tethered PVP Layer." Water 13, no. 7 (March 31, 2021): 951. http://dx.doi.org/10.3390/w13070951.

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The influence of surface modification of zirconia (ZrO2) membrane with tethered poly(vinyl pyrrolidone) (PVP) chains was evaluated with respect to the impact of pH and ionic strength on hydraulic resistance and fouling resistance in the filtration of bovine serum albumin (BSA) and lysozyme (Lys) as model protein foulants. The tethered PVP surface layer led to membrane permeability and fouling propensity that were responsive to both pH and ionic strength. The PVP-modified membrane (PVP-ZrO2) hydraulic resistance increased by up to ~48% over a pH range of 6–11, but with no discernible impact at
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Sun, Chunyi, Na Zhang, Fazhan Li, Guoyi Ke, Lianfa Song, Xiaoqian Liu, and Shuang Liang. "Quantitative Analysis of Membrane Fouling Mechanisms Involved in Microfiltration of Humic Acid–Protein Mixtures at Different Solution Conditions." Water 10, no. 10 (September 22, 2018): 1306. http://dx.doi.org/10.3390/w10101306.

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A systematical quantitative understanding of different mechanisms, though of fundamental importance for better fouling control, is still unavailable for the microfiltration (MF) of humic acid (HA) and protein mixtures. Based on extended Derjaguin–Landau–Verwey–Overbeek (xDLVO) theory, the major fouling mechanisms, i.e., Lifshitz–van der Waals (LW), electrostatic (EL), and acid–base (AB) interactions, were for the first time quantitatively analyzed for model HA–bovine serum albumin (BSA) mixtures at different solution conditions. Results indicated that the pH, ionic strength, and calcium ion co
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Scudeller, Luisa A., Pascal Blanpain-Avet, Thierry Six, Séverine Bellayer, Maude Jimenez, Thomas Croguennec, Christophe André, and Guillaume Delaplace. "Calcium Chelation by Phosphate Ions and Its Influence on Fouling Mechanisms of Whey Protein Solutions in a Plate Heat Exchanger." Foods 10, no. 2 (January 27, 2021): 259. http://dx.doi.org/10.3390/foods10020259.

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Fouling of plate heat exchangers (PHEs) is a recurring problem when pasteurizing whey protein solutions. As Ca2+ is involved in denaturation/aggregation mechanisms of whey proteins, the use of calcium chelators seems to be a way to reduce the fouling of PHEs. Unfortunately, in depth studies investigating the changes of the whey protein fouling mechanism in the presence of calcium chelators are scarce. To improve our knowledge, reconstituted whey protein isolate (WPI) solutions were prepared with increasing amounts of phosphate, expressed in phosphorus (P). The fouling experiments were performe
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Miyoshi, Taro, Yuhei Nagai, Tomoyasu Aizawa, Katsuki Kimura, and Yoshimasa Watanabe. "Proteins causing membrane fouling in membrane bioreactors." Water Science and Technology 72, no. 6 (June 2, 2015): 844–49. http://dx.doi.org/10.2166/wst.2015.282.

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In this study, the details of proteins causing membrane fouling in membrane bioreactors (MBRs) treating real municipal wastewater were investigated. Two separate pilot-scale MBRs were continuously operated under significantly different operating conditions; one MBR was a submerged type whereas the other was a side-stream type. The submerged and side-stream MBRs were operated for 20 and 10 days, respectively. At the end of continuous operation, the foulants were extracted from the fouled membranes. The proteins contained in the extracted foulants were enriched by using the combination of crude
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Buchori, Luqman, Heru Susanto, and Budiyono Budiyono. "SINTESIS MEMBRAN ULTRAFILTRASI NON FOULING UNTUK APLIKASI PEMPROSESAN BAHAN PANGAN." Reaktor 13, no. 1 (February 3, 2010): 10. http://dx.doi.org/10.14710/reaktor.13.1.10-15.

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Membran ultrafiltrasi (UF) telah terbukti sebagai proses yang menjanjikan untuk aplikasi di bidang pemprosesan bahan pangan. Namun, peristiwa fouling dapat menurunkan kinerja membran secara signifikan. Meskipun banyak metode pengendalian fouling telah diusulkan, dalam banyak kasus kinerja proses sangat dipengaruhi oleh membran sebagai jantung dari proses. Dalam makalah ini pengendalian fouling dilakukan dengan memodifikasi permukaan membran dengan teknik kopolimerisasi foto-grafting. Acrylic acid (AA), acrylamido methylpropane sulfonic acid (AMPS), poly(ethylene glycol) methacrylate (PEGMA), d
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Berg, Thilo H. A., Jes C. Knudsen, Richard Ipsen, Frans van den Berg, Hans H. Holst, and Alexander Tolkach. "Investigation of Consecutive Fouling and Cleaning Cycles of Ultrafiltration Membranes Used for Whey Processing." International Journal of Food Engineering 10, no. 3 (September 1, 2014): 367–81. http://dx.doi.org/10.1515/ijfe-2014-0028.

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Abstract Development of resistance during multiple foulings and three-step Cleaning-In-Place (CIP) operations, simulating an industrial cleaning regime of polysulfone ultrafiltration membranes, was investigated. The study explored how trans-membrane pressure (150 and 300 kPa) and feed protein concentration (0.9 and 10%) influenced resistance reduction during filtration and flux recovery by the cleaning procedures. New membranes, pre-cleaned with a full CIP cycle, were used for each experiment. Subsequent fouling (simulating production) and CIP were done three times in a row and the development
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Peiris, R. H., M. Jaklewicz, H. Budman, R. L. Legge, and C. Moresoli. "Characterization of hydraulically reversible and irreversible fouling species in ultrafiltration drinking water treatment systems using fluorescence EEM and LC–OCD measurements." Water Supply 13, no. 5 (September 1, 2013): 1220–27. http://dx.doi.org/10.2166/ws.2013.130.

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The application of the fluorescence excitation-emission matrix (EEM) approach and liquid chromatography–organic carbon detection (LC–OCD) analysis for the characterization of hydraulically reversible and irreversible fouling species, extracted from hollow fiber ultrafiltration (UF) membranes used in drinking water treatment, was demonstrated. Hydraulically reversible and irreversible fouling species were extracted from two pilot UF membrane systems operated in parallel with lake water as the feed. Two membrane cleaning protocols, hydraulic- and chemical-based (NaOCl and citric acid) cleaning,
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Chaipetch, Wiparat, Arisa Jaiyu, Panitan Jutaporn, Marc Heran, and Watsa Khongnakorn. "Fouling Behavior in a High-Rate Anaerobic Submerged Membrane Bioreactor (AnMBR) for Palm Oil Mill Effluent (POME) Treatment." Membranes 11, no. 9 (August 25, 2021): 649. http://dx.doi.org/10.3390/membranes11090649.

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The characteristics of foulant in the cake layer and bulk suspended solids of a 10 L submerged anaerobic membrane bioreactor (AnMBR) used for treatment of palm oil mill effluent (POME) were investigated in this study. Three different organic loading rates (OLRs) were applied with prolonged sludge retention time throughout a long operation time (270 days). The organic foulant was characterized by biomass concentration and concentration of extracellular polymeric substances (EPS). The thicknesses of the cake layer and foulant were analyzed by confocal laser scanning microscopy and Fourier transf
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Dissertations / Theses on the topic "Protein fouling"

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Alharthi, Majed. "Fouling and cleaning studies of protein fouling at pasteurisation temperatures." Thesis, University of Birmingham, 2014. http://etheses.bham.ac.uk//id/eprint/4892/.

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Fouling and cleaning processes impact industrial production, in terms of economics, product quality, product safety, and plant efficiency. Therefore, optimisation of fouling and cleaning processes is a significant issue, and needs a good understanding of fouling and cleaning kinetics. Ideal monitors should determine the right time when a process run should stop and when a plant will be clean in order to improve the process efficiency. This thesis investigated the fouling and cleaning behaviour of dairy fluids in a plate heat exchanger (PHE) and bench scale fouling rig, using whey protein conce
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Gotham, Simon Martyn. "Mechanisms of protein fouling of heat exchangers." Thesis, University of Cambridge, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.357741.

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Chan, Robert Chemical Engineering &amp Industrial Chemistry UNSW. "Fouling mechanisms in the membrane filtration of single and binary protein solutions." Awarded by:University of New South Wales. Chemical Engineering and Industrial Chemistry, 2002. http://handle.unsw.edu.au/1959.4/18832.

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In this study the fouling mechanisms of various microfiltration and ultrafiltration membranes were studied when subjected to crossflow filtration using various protein solutions. Experimentation was carried out using controlled flux experiments and fouling phenomena was investigated via the monitoring of the transmembrane pressure (TMP) and rejection. Electron microscopy was employed to study fouling on microfiltration membranes when single protein solutions were filtered while a novel method involving Matrix-Assisted Laser Desorption Ionisation Mass Spectrometry (MALDI-MS) was developed to qu
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Huang, Yunqi. "Design and Evaluation of a Laboratory-Scale System for Investigation of Fouling during Thermal Processing Operation." The Ohio State University, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=osu1494245242027853.

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Prodan, Bjorg Noah Radu. "Modifying Membrane Surfaces via Self-Assembled Monolayers to Reduce Protein Fouling." University of Cincinnati / OhioLINK, 2004. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1091133289.

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RAJAM, SRIDHAR. "TWO SURFACE MODIFICATION METHODS TO REDUCE PROTEIN FOULING IN MICROFILTRATION MEMBRANES." University of Cincinnati / OhioLINK, 2007. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1172005034.

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Rose, Ian C. "Model investigation of initial fouling rates of protein solutions in heat transfer equipment." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape8/PQDD_0026/NQ38965.pdf.

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Hamilton-Brown, Paul Optometry &amp Vision Science Faculty of Science UNSW. "A surface forces and protein adsorption study of grafted PEO layers." Awarded by:University of New South Wales. School of Optometry and Vision Science, 2006. http://handle.unsw.edu.au/1959.4/25541.

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A combination of surface analytical techniques, colloid probe Atomic Force Microscopy (AFM) and X-ray Photoelectron Spectroscopy (XPS) was used to optimise the grafting density of covalently attached 5, 20 and 40 kDa methoxy-terminated PEO layers (under marginal solvation (cloud point) conditions for the PEO molecules). The combination of these techniques allowed us to relate the PEO layer density and molecular conformations to the range, magnitude and types of forces generated by coatings of various grafting densities. The key optimisation parameter was the grafting time with the concentratio
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Magens, Ole Mathis. "Mitigating fouling of heat exchangers with fluoropolymer coatings." Thesis, University of Cambridge, 2019. https://www.repository.cam.ac.uk/handle/1810/287467.

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Fouling is a chronic problem in many heat transfer systems and results in the need for frequent heat exchanger (HEX) cleaning. In the dairy industry, the associated operating cost and environmental impact are substantial. Antifouling coatings are one mitigation option. In this work, the fouling behaviour of fluoropolymer, polypropylene and stainless steel heat transfer surfaces in processing raw milk and whey protein solution are studied. Methodologies to assess the economics of antifouling coatings are developed and applied. Two experimental apparatuses were designed and constructed to study
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Suwal, Shyam, and Shyam Suwal. "Fractionation of Peptides from Protein Hydrolysate by Electrodialysis with Filtration Membrane : process optimization, Fouling characterization and Control mechanisms." Doctoral thesis, Université Laval, 2015. http://hdl.handle.net/20.500.11794/26619.

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Des peptides bioactifs ont déjà été fractionnés par électrodialyse avec membrane de filtration (ÉDMF) à partir d’hydrolysats de sous-produits de crabe des neiges. L’optimisation des paramètres apparaît maintenant indispensable pour perfectionner le procédé. Ainsi, le taux de migration des peptides, leur sélectivité et l'évolution des paramètres électrodialytiques ont été étudiés pour différents paramètres (configuration, concentration en KCl et types de champ électrique). La configuration (2) de la cellule d’ÉDMF comprenant deux compartiments d'alimentation et un compartiment de récupération a
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Books on the topic "Protein fouling"

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Office, General Accounting. Drinking water: Stronger efforts needed to protect areas around public wells from contamination : report to the chairman, Environment, Energy, and Natural Resources Subcommittee, Committee on Government Operations, House of Representatives. Washington, D.C: GAO, 1993.

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Book chapters on the topic "Protein fouling"

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Le-Clech, Pierre. "Protein Fouling." In Encyclopedia of Membranes, 1–2. Berlin, Heidelberg: Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-40872-4_1706-1.

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Le-Clech, Pierre. "Protein Fouling Mechanisms." In Encyclopedia of Membranes, 1–2. Berlin, Heidelberg: Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-40872-4_1707-1.

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Johansson, J., H. K. Yasuda, and R. K. Bajpai. "Fouling and Protein Adsorption." In Biotechnology for Fuels and Chemicals, 747–63. Totowa, NJ: Humana Press, 1998. http://dx.doi.org/10.1007/978-1-4612-1814-2_69.

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Fuller, K. L., and S. G. Roscoe. "Surface adsorption of dairy proteins: Fouling of model surfaces." In Protein Structure-Function Relationships in Foods, 143–62. Boston, MA: Springer US, 1994. http://dx.doi.org/10.1007/978-1-4615-2670-4_7.

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Zydney, Andrew L. "Non-Specific Protein-Membrane Interactions: Adsorption and Fouling." In Biofunctional Membranes, 279–88. Boston, MA: Springer US, 1996. http://dx.doi.org/10.1007/978-1-4757-2521-6_19.

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Reed, I. M., and J. M. Sheldon. "Investigation of Protein Fouling Characteristics of Ultrafiltration Membranes." In Effective Industrial Membrane Processes: Benefits and Opportunities, 91–99. Dordrecht: Springer Netherlands, 1991. http://dx.doi.org/10.1007/978-94-011-3682-2_6.

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Reed, I. M., and J. M. Sheldon. "Protein Fouling and its Implications for Selection for Ultrafiltration Membranes." In Separations for Biotechnology 2, 217–26. Dordrecht: Springer Netherlands, 1990. http://dx.doi.org/10.1007/978-94-009-0783-6_24.

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Benavente, Juana. "Use of Streaming Potential Measurements for Characterization of Both Membrane/Electrolyte Interface and Protein Fouling Effect." In Encyclopedia of Membranes, 1–2. Berlin, Heidelberg: Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-40872-4_765-3.

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Benavente, Juana. "Use of Streaming Potential Measurements for Characterization of Both Membrane/Electrolyte Interface and Protein Fouling Effect." In Encyclopedia of Membranes, 1957–58. Berlin, Heidelberg: Springer Berlin Heidelberg, 2016. http://dx.doi.org/10.1007/978-3-662-44324-8_765.

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Riool, Martijn, and Sebastian A. J. Zaat. "Biomaterial-Associated Infection: Pathogenesis and Prevention." In Urinary Stents, 245–57. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-04484-7_20.

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AbstractThe use of medical devices, such as urinary stents, catheters, artificial heart valves, prosthetic joints and other implants, collectively often referred to as “biomaterials” has increased dramatically over the past century, and has become a major part of modern medicine and our daily life. With the aging society, the higher demand on these devices to restore function and quality of life, combined with the ever improving technology within the medical field, the problem of biomaterial-associated infection (BAI) is expected to increase.The most common causative microorganisms in BAI are Staphylococcus aureus, a major pathogen in wound infections, and Staphylococcus epidermidis, the harmless skin commensal. Depending on the type of device and location of application, other pathogens such as coagulase-negative staphylococci, enterococci, streptococci, Propionibacterium acnes and yeast can also cause BAI.Prevention of BAI is a challenging problem, in particular due to the increased risk of resistance development associated with current antibiotic-based strategies. Here we showed the evidence of biofilms as a source for peri-implant tissue colonization, clearly showing the importance of preventive measures to be able to act both against implant and tissue colonization. Subsequently, we described different strategies to prevent BAI and other difficult-to-treat biofilm infections. We conclude that future research should focus on the development of combination devices with both anti-fouling or contact-killing capacities—to protect the implant—and controlled release of an antimicrobial agent to protect the surrounding tissue.
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Conference papers on the topic "Protein fouling"

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Agarwal, Ashutosh, Parag Katira, and Henry Hess. "Quantifying and understanding protein adsorption to non-fouling surfaces." In 2010 36th Annual Northeast Bioengineering Conference. IEEE, 2010. http://dx.doi.org/10.1109/nebc.2010.5458217.

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Smith, Karl J. P., Joshua Winans, and James McGrath. "Ultrathin Membrane Fouling Mechanism Transitions in Dead-End Filtration of Protein." In ASME 2016 14th International Conference on Nanochannels, Microchannels, and Minichannels collocated with the ASME 2016 Heat Transfer Summer Conference and the ASME 2016 Fluids Engineering Division Summer Meeting. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/icnmm2016-7989.

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Ultrathin membranes will likely see great utility in future membrane-based separations, but key aspects of the performance of these membranes, especially when they are used to filter protein, remain poorly understood. In this work we perform protein filtrations using new nanoporous silicon nitride (NPN) membranes. Several concentrations of protein are filtered using dead end filtration in a benchtop centrifuge, and we track fouling based on the amount of filtrate passed over time. A modification of the classic fouling model that includes the effects of using a centrifuge and allow for the visu
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Lee, Yi Jae, Jung Doo Kim, and Jae Yeong Park. "Nafion coated enzyme free glucose micro-biosensors for anti-fouling of protein." In 2009 4th IEEE International Conference on Nano/Micro Engineered and Molecular Systems. IEEE, 2009. http://dx.doi.org/10.1109/nems.2009.5068590.

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Liu, Yanjun, Huiying Ma, Chunying Lv, Jia Yang, and Xueqi Fu. "Protein absorption and fouling on poly(acrylic acid)-graft-polypropylene microfiltration membrane." In Second International Conference on Smart Materials and Nanotechnology in Engineering, edited by Jinsong Leng, Anand K. Asundi, and Wolfgang Ecke. SPIE, 2009. http://dx.doi.org/10.1117/12.840154.

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Rose, Ian, A. Paul Watkinson, and Norman Epstein. "MODEL INVESTIGATION OF INITIAL FOULING RATES OF PROTEIN SOLUTIONS IN HEAT TRANSFER EQUIPMENT." In Proceedings of an International Conference on Mitigation of Heat Exchanger Fouling and Its Economic and Environmental Implications. Connecticut: Begellhouse, 2023. http://dx.doi.org/10.1615/1-56700-172-6.350.

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Huang, Guobang, Yi Chen, and Jin Zhang. "Nanocomposite coating produced by laser-assisted process to prevent bacterial contamination and protein fouling." In 2014 IEEE 14th International Conference on Nanotechnology (IEEE-NANO). IEEE, 2014. http://dx.doi.org/10.1109/nano.2014.6967984.

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Ameli, Forough, Bahram Dabir, Farzin Zokaee Ashtiani, Mehdad Mozaffarian, and Kambiz Vafai. "Combined Models of Population Balance and Pore-Network to Explore the Mechanism of Protein Fouling in Porous Media." In POROUS MEDIA AND ITS APPLICATIONS IN SCIENCE, ENGINEERING, AND INDUSTRY: 3rd International Conference. AIP, 2010. http://dx.doi.org/10.1063/1.3453812.

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Hsieh, Yi-Cheng, Huinan Liang, and Jeffrey D. Zahn. "Microdevices for Microdialysis and Membrane Separations." In ASME 2003 International Mechanical Engineering Congress and Exposition. ASMEDC, 2003. http://dx.doi.org/10.1115/imece2003-55052.

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Microdialysis is a commonly used technique for separating small biomolecules within a complex biological mixture for continuous biochemical monitoring. Microdialysis is based upon controlling the mass transfer rate of small biomolecules diffusing across a semipermeable membrane into a dialysis fluid while excluding larger molecules such as proteins. These small molecules are subsequently sensed using a biosensor. Since many biosensors are extremely susceptible to fouling, their stability and lifetime can be extended if metabolites are filtered through a microdialysis membrane before the dialys
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Uttley, Katherine, Anika Galvan, Matthew Nakatsuka, and Marco Basile. "High Temperature Compatible, Field-Deployable Heat Exchanger Nanocomposite Treatments." In Offshore Technology Conference. OTC, 2024. http://dx.doi.org/10.4043/35384-ms.

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Abstract Fouling of refinery reboilers is a major source of production loss, health, safety, and environment (HSE) issues, and increased carbon emissions. Reboilers can be especially difficult, as fouling is difficult to address without major cleaning operations, and anti-fouling solutions outside of design modifications are limited. Formulation development of a novel coating material for reboiler systems examined a wide variety of polymer and nanocomposite chemistries. An iterative development process was used to identify and synthesize a polymer nanocomposite surface treatment to protect aga
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Fedorova, M., L. Baldaev, S. Baldaev, N. Baldaev, A. Akhmetgareeva, and V. Martyanova. "An Investigation of the Corrosion and Cavitation Resistance of Different Thermally Sprayed Coatings in River and Marine Environments." In ITSC2017, edited by A. Agarwal, G. Bolelli, A. Concustell, Y. C. Lau, A. McDonald, F. L. Toma, E. Turunen, and C. A. Widener. DVS Media GmbH, 2017. http://dx.doi.org/10.31399/asm.cp.itsc2017p0809.

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Abstract To evaluate the corrosion resistance of various coatings applied by the flame spraying method, and to compare their protective properties in sweet- and sea-water samples with seven types of coatings were made, one of them is paint, used to coat ship’s bottom. SEM, Neutral spray salt, according to ASTM B117, erosion-corrosion (E-C) tests in sweet- and sea-water were carried out. The test results showed that coatings based on zinc alloys and polymer are much more effective than standard epoxy coatings and can be compared with expensive zinc-filled paints, because the latter require freq
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