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Showing 1 to 20 of 30 for “"Carboxymethylcellulose"”.
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Carboxymethylcellulose Acetate Butyrate Water-Dispersions as Renewable Wood Adhesives
Two commercial carboxymethylcellulose acetate butyrate (CMCAB) polymers, high and low molecular weight (MW) forms, were analyzed in this study. High-solids water-borne dispersions of these polymers were studied as renewable wood adhesives. Neat polymer analyses revealed that the apart from MW, the …
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Characterization and Pharmacokinetics of Rifampicin Laden Carboxymethylcellulose Acetate Butyrate Particles
… relative bioavailability of rifampicin loaded carboxymethylcellulose acetate butyrate (CMCAB) particles using two different formulation techniques. Multi inlet vortex mixer (MIVM) and manual spray drying techniques were used to form the rifampicin containing CMCAB particles. Characterization …
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THE SYNTHESIS AND CHARACTERIZATION OF DUAL-MODIFIED CARBOXYMETHYLCELLULOSE FOR BIOADHESIVE APPLICATIONS
… and safety of surgical interventions. Carboxymethylcellulose (CMC) is a plant-derived polymer that is cytocompatible, biocompatible, biodegradable, and inexpensive. The need for a non-toxic but strongly adherent material motivated the development of an injectable bioadhesive system …
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Application of Soluble Whey Protein-Carboxymethylcellulose Complex in Emulsion and Acid-induced Gelation
… complex between whey protein isolate (WPI) and carboxymethylcellulose (CMC) can be formed at pH above the pI of the protein. In the first study, the influence of CMC concentration and molecular weight (Mw = 270k, 750k, and 2,500kDa) on the stability and properties of WPI/CMC-stabilized …
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Evaluation of Select Food Additive Exposures in Children with Crohn's Disease
… disease activity. Several food additives (e.g. carboxymethylcellulose, carrageenan, maltodextrin) have been shown to cause intestinal inflammation, mucosal barrier alterations, and microbiome dysbiosis in animal models, therefore it has been hypothesized that these additives may be associated …
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Cloned xylanolytic and cellulolytic enzymes from an extreme thermophile
… and some xylotriose. It also hydrolysed carboxymethylcellulose, 4-methylumbelliferyl β-D-cellobioside (MUC) and p-nitrophenyl β-D-cellobioside but could not hydrolyse xylobiose. It showed transferase activity on p-nitrophenyl β-D-xylopyranoside. The β-glucosidase also had broad substrate …
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Development of an Adhesive Emulsion Hydrogel for Soft Tissue Reconstruction
… bonded, long-lasting soft implants in situ. Carboxymethylcellulose can be oxidized via periodate treatment (oCMC) to impart adhesivity through the production of aldehyde functional groups, which form imine bonds with the primary amines of proteins via Schiff base reactions. These two polymers …
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Ovarian and Pituitary Responses of Seasonally and Postpartum Anestrous Ewes to Gonadotropin Releasing Hormone
… intramuscularly in saline, subcutaneously in carboxymethylcellulose or subcutaneously in a gelatin capsule. Ewes were bled for progesterone determination prior to treatment and up to 13 days after treatment. Ewes were classified into one of four progesterone categories: cyclic, transient …
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Grewia polysaccharide gum as a pharmaceutical excipient
… gum may be preferable to gum Arabic or sodium carboxymethylcellulose as a suspending agent in ibuprofen suspension formulations. The release retardant property of the gum was superior to guar and Metolose® in ibuprofen matrices. Similarly, carboxy methylcellulose, Methocel®, gum Arabic or …
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The characterisation of alginate systems for biomedical applications
… (M)/guluronic (G) acid ratio), pectin and sodium carboxymethylcellulose (CMC), for wound dressing applications. The samples were prepared as mixed salts such as sodium/calcium salts as Ca2+ ions are known to promote faster healing. The aims of this research were: 1- to provide a greater insight …
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Aspects of ultrasonic relaxation spectrometry
… kappa carrageenans, sodium alginate and sodium carboxymethylcellulose.
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Cholesterol metabolism in the endoplasmic reticulum of rat liver
… on quaternary aminoethyl-Sephadex or on carboxymethylcellulose did not result in any purification of cytochrome P-450. Hydroxyapatite chromatography of cytochrome P-450 - containing fractions from the DEAE-cellulose eluate gave a further small purification of cytochrome P-450. The use of …
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Physicochemical and Sensory Characterisation of Interaction in Sodium-Chloride - Hydrocolloid Systems
… mixed. The hydrocolloids selected were carboxymethylcellulose (CMC, ionic) and methylcellulose (MC, nonionic). Interaction between the ion and hydrocolloids was measured using Nuclear Magnetic Resonance (NMR) spectroscopy to probe the mobility of $\sp{23}$Na nucleus. In addition, changes …
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The rheological effect of hydrocolloids on selected attributes of a lemon flavored beverage containing artificial sweeteners
… of xanthan gum, carboxymethyicellulose-low, and carboxymethylcellulose-medium on the attributes of a lemon flavored beverage sweetened with an artificial sweetener. Each hydrocolloid was added to the beverages to attain the following viscosities - 10 cps, 15 cps, and 20 Ctps. The table top …
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Production of temporary bone scaffold reinforced with OPEFB-CMC from oil palm empty fruit bunch
… physico-chemical properties. This research used Carboxymethylcellulose (CMC) as the reinforcement material for CS / HA or nHA composite scaffold. The main objective is to produce CMC from Oil Palm Empty Fruit Bunch (OPEFB) for temporary biodegradable bone scaffold from a combination of CMC, CS …
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Analysis of Porcine Immunity in PRRS Virus
… (poly I:C), complexed with poly-L-lysine and carboxymethylcellulose (poly ICLC), known to be capable of inducing the production of IL-12, was tested for its ability to potentiate vaccine-induced PRRSV-specific immunity. Whereas co-administration of MLV vaccine with either rIL-12 or the EL-12 …
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The influence of polymeric charge and structure, molecular weight and ionic conditions on depressant ability to reduce the natural floatability of talc
… types of long chain polysaccharide depressants (carboxymethylcellulose and guar gum) with pure talc and with Merensky PGM ore (which is known to contain talc as a gangue constituent). Specifically, the objectives of this thesis were as follows: 1. To characterize the differences in the …
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An investigation into polymeric excipient-drug compatibility in solid-liquid formulations
… (HPMC), hydroxyethylcellulose (HEC), carboxymethylcellulose (CMC), gum arabic (GA), guar gum (GG) and lambda-carrageenan (l-carrageenan). The physico-chemical methods developed in this work help improve the current empirical selection of an appropriate polymer in pre-formulation …
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Performance and characteristics of controlled release matrices composed of hydroxpropylmethylcellulose and other polymers.
… of hydroxypropylmethylcellulose (HPMC), sodium carboxymethylcellulose (NaCMC) or ethylcellulose, alone or in combination with other adjuncts, to control the release of propranolol hydrochloride from matrices. Gels were characterized by U tube viscometry and their cloud points of gels. The …
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