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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 48 for “"Carboxymethyl cellulose"”.
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Rheological study of solutions of high concentrations of Carboxymethyl cellulose
… shear stress response, and yield stress of Carboxymethyl Cellulose. Also, the thixotropic, viscoelastic behavior, and some of the dynamic responses were included. In order to accomplish this, a Haake-Rheostress 100, Cone-and-Plate Rheometer system was used to get a full set of rheological …
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Study of Ion-Transport and Release from Carboxymethyl Cellulose and other Polymer Networks
… by Schiff base reaction based on different cellulose substrates for investigating the release kinetics of different ions from them. The optimized Peleg model was used here to fit the concentration of ions released at different time points to derive the law of release kinetics of ions from …
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The incorporation of a chelating agent into a flame retardant finish on a cotton flannelette and the evaluation of selected fabric properties
… of the research include the following: 1) carboxymethyl cellulose improved the non-flammable qualities; and 2) the carboxymethyl cellulose seemed to wear off after 10 launderings at which time calcium and magnesium deposits were believed to begin accumulation.
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Cellulolytic enzyme systems of Myrothecium verrucaria
… (B) the formation of glucose in the course of cellulose hydrolysis, (C) the significance of intermediate dextrins in the course of cellulose hydrolysis, (D) the properties of a β-aryl-glucosidase present in filtrates of this organism, and (E) a transglucosidase which synthesized higher …
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Biological control studies of Phytophthora Parasitica root rot of boxwood using multiple antagonists
… to Phytophthora in vitro; test two polymers, carboxymethyl cellulose (CMC) and methylcellulose (MC) for their suitability as carriers, storage media, and carbon substrates; and finally to determine the efficacy of selected antagonist pairs in controlling Phytophthora root rot on containerized …
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Investigating the relative adsorption of polymeric depressants on pure minerals
… and the depressants used were guar gum and carboxymethyl cellulose (CMC). It was hypothesised at the beginning of this study that polymeric depressants adsorb preferentially onto different minerals because of the differences in the surface charge of the minerals which arise as a result of …
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Genetic studies on Clostridium acetobutylicum
… system for this organism. The production of a carboxymethyl cellulose and a cellobiase by C acetobutylicum was demonstrated. In liquid medium the carboxymethyl cellulase was induced by molasses, and it was not repressed by glucose. Optimum carboxymethyl cellulase activity occurred at pH 4.6 and …
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Molecular Analysis of a Cellulase/xylanase gene,celD, From the Ruminal Bacterium Ruminococcus Flavefaciens Fd-1
… against both Ostazin brilliant red-hydroxyethyl cellulose and carboxymethyl cellulose (CMC) was isolated. This clone (designated FD1-1) was further analyzed by restriction endonuclease mapping and Southern blot analysis. Substrate specificity data show that the cloned gene encodes both …
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Investigation of the surface properties of gangue minerals in PGM bearing ores
… particles. Polysaccharide depressants, such as carboxymethyl cellulose (CMC) and modified guar gums are used to reduce the floatability of naturally floatable gangue and may also be able to reduce the floatability of activated gangue. This study examines the copper activation of a range of …
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Surface properties of New York talc as a function of pH, polymer adsorption and electrolyte concentration
… polymers such as non-ionic guar gums and anionic Carboxymethyl cellulose (CMC) depressants are employed for this purpose. However, the industrial use of these reagents is still inefficient. One of the factors affecting the performance of these polymers as depressants is the water quality of the …
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Cellulase and related enzyme activity in protoplasts and mycelium of filamentous fungi.
… The fungi were grown on Acetobacter xylinum cellulose pellicles and soluble carboxymethyl cellulose and their enzyme complements were characterised under various growth conditions. The factors affecting the production and release of protoplasts from the closely related A. fumigatus and A. …
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Electrochemical immunosensor based on cyclodextrin supramolecular interactions for the detection of human chorionic gonadotropin
… complex with ferrocene (Fc)-functionalised carboxymethyl cellulose polymer (CMC). Cyclic voltammetry indicated that ferrocene is in close proximity to the electrode surface due to the supramolecular complex formed with βCDPSH. Furthermore, strategy (a) for the detection of hCG used α-antihCG …
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Electrochemical Immunosensor based on Cyclodextrin Supramolecular interactions for the detection of human chorionic gonadotropin
… complex with ferrocene (Fc)-functionalised carboxymethyl cellulose polymer (CMC). Cyclic voltammetry indicated that ferrocene is in close proximity to the electrode surface due to the supramolecular complex formed with βCDPSH. Furthermore, strategy (a) for the detection of hCG used α-antihCG …
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Electrochemical immunosensor based on cyclodextrin supramolecular interactions for the detection of human chorionic gonadotropin
… complex with ferrocene (Fc)-functionalised carboxymethyl cellulose polymer (CMC). Cyclic voltammetry indicated that ferrocene is in close proximity to the electrode surface due to the supramolecular complex formed with βCDPSH. Furthermore, strategy (a) for the detection of hCG used α-antihCG …
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Effect of composition and sintering temperature on silica-nickel oxide foams by slurry method
… binders which were polyethylene glycol (PEG) and carboxymethyl cellulose (CMC) to prepare slurry solution for impregnation of polyurethane (PU) sponge as the template. Silica-Nickel Oxide foams were fabricated by slurry method and sintered at 1000ºC, 1100ºC, 1200ºC and 1300ºC. Characterisation of …
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Operation of a Tubular Anaerobic Digested on Piggery Waste
… exocellular endoglucanase activity against carboxymethyl cellulose decreases and cell associated activity increases as slurry enters and passes along the digesters. Detectable activity is associated with particulate solids and does not disperse widely. Electron microscopy showed that …
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Resistance to protein synthesis inhibitors in Coprinus cinereus
… candidates were proposed. An analysis using carboxymethyl-cellulose chromotography did not Identify any cytoplasmic ribosomal proteins conferring cycloheximide resistance. CY 8.2 was one of 174 cycloheximide-resistant mutant strains produced by the ultraviolet mutagenesis of …
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Investigation of aqueous kaolin suspensions : a rheological and sedimentation volume study
… in coating color formulations (kaolin, sodium carboxymethyl cellulose, and sodium chloride). For practical applications in many cases, suspensions with a high solid content are required which show low viscosity, significant elasticity, and thixotropy as well. The aim of this investigation is to …
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Adsorption of Biomacromolecules onto Polysaccharide Surfaces
… adsorption isotherms were obtained to probe how cellulose-hemicellulose interactions were affected by the type of cellulose substrate and molar mass of xyloglucan. Xyloglucan as small as a heptasaccharide still adsorbed irreversibly onto cellulose. Carboxymethyl cellulose (CMC) adsorption onto …
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A Bottom-Up Assembly Of Vascularized Bioartificial Constructs Using Ecm Based Microscale Modules
… (GAG) solutions (4%/1.5% chondroitin sulfate/carboxymethyl cellulose, or 1.5 wt% hyaluronan) and encapsulated by forming chitosan-GAG polyelectrolyte complex membranes around droplets of the cell suspension. The interior capsule environment could be further tuned by blending collagen with or …
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