Carboxymethylcellulose
Mostrando 37-48 de 164 artigos, teses e dissertações.
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37. Formação de multicamadas de polissacarídeos e proteína
In this work the formation of multilayers composed by carboxymethylcellulose (CMC), chitosane and bovine serum albumin (BSA) was studied by ellipsometry. First, the adsorption behavior of carboxymethylcellulose onto amino-terminated surfaces was investigated as a function of molecular weight and average degree of substitution of CMC. The influence of these p
Química Nova. Publicado em: 2002-09
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38. Effect of sodium carboxymethylcellulose and methylprednisolone on the healing of jejunal anastomoses in rats
Sodium carboxymethylcellulose (SCMC) has been effective in reducing adhesion formation and corticosteroids reduce the inflammatory process. The objective of this study was to define the intraperitoneal (ip) effects of SCMC combined with intramuscular (im) methylprednisolone on peritoneal adhesion formation and on jejunal anastomosis healing in rats. Twenty W
Brazilian Journal of Medical and Biological Research. Publicado em: 2001-04
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39. Obtainion and characterization of absorbent materials throught carboximelation of etanol/water pulp non fiber fraction sugar cane bagasse. / Obtenção e caracterização de materiais absorventes através de carboximetilação de polpa etanol/água de medula de bagaço de cana de açúcar.
This work describes the use of ethanol / water pulps of pith in a study aiming the obtention and characterization of substantially insoluble carboxymethylcellulose for application as an absorvente material. In a typical experiment the carboxymethylation reaction of bleached ethanol / water pulp occurred at 80°C for 4 hours in isopropanol/ water suspensio
Publicado em: 1996
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40. Evaluation of Methods Used to Purify Acid-Extracted Group A Streptococcal M Protein
The literature includes descriptions of both acid-soluble and acid-insoluble M protein in the preparation of “hot acid-extracted group A streptococcal M protein.” We present evidence for the contamination of crude type 1 acid-insoluble M protein. The purification of preparations of crude and partially purified acid-soluble type 1 and type 12 M protein is
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41. Immunotherapy of guinea pig line 10 hepatoma with nonliving BCG cells in aqueous medium.
Killed BCG cells suspended in 1.5% carboxymethylcellulose cured guinea pigs with established line 10 tumors in a high percentage of cases. The bacterial preparation of BCG in carboxymethylcellulose displayed a stronger tumor regressive activity and the process of healing was accelerated when endotoxin from a rough (Re) strain of Salmonella typhimurium was ad
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42. Carboxymethylcellulose ether media for cold-weather aerosol sampling.
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43. Modified polyriboinosinic-polyribocytidylic acid complex: modulation of toxicity for rabbits by alterations in components.
In an earlier study the physiological effects encountered in humans of a modified complex of polyriboinosinic acid-polyribocytidylic acid [poly(I)-poly(C)] with carboxymethylcellulose and poly-L-lysine [poly(ICLC) (9S)], namely, the induction of high titers of serum interferon along with fever and hypotension, were reproduced in rabbits. In the present studi
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44. Growth of “Seeded” Cellulolytic Enrichment Cultures on Mesquite Wood
Eleven enrichment cultures were developed by a “seeded” enrichment culture technique, and one was developed by a simple enrichment technique. The seeded enrichment, the pure “seed,” and the simple enrichment cultures were compared during growth on mesquite wood, cotton, carboxymethylcellulose, and cellobiose. All of the enrichment cultures were cellu
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45. Derepressed synthesis of cellulase by Cellulomonas.
A Cellulomonas sp. was isolated from the soil which hydrolyzed cellulose, as shown by clear-zone formation on cellulose agar medium. Catabolite repression of cellulase synthesis occurred when moderate levels of glucose were added to the medium. A stable mutant that no longer exhibits catabolite repression was produced through treatment of the wild-type organ
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46. Induction of cellulose in Schizophyllum commune: thiocellobiose as a new inducer.
Several mono-, di, tetra-, and polysaccharides were screened for their ability to induced cellulase production by the tetrapolar hymenomycete Schizophyllum commune. Out of 21 carbohydrates screened, 4 (thiocellobiose, carboxymethylcellulose, cellobiose, and xylan) induced all three enzymes tested (carboxymethylcellulase, beta-glucosidase, and xylanase). The
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47. Interferon induction by and toxicity of polyriboinosinic acid [poly(rI)].polyribocytidylic acid [poly (rC)], mismatched analog poly (rI).poly[r(C12Uracil)n], and poly(rI).poly(rC) L-lysine complexed with carboxymethylcellulose.
The ability of polyriboinosionic acid [poly(rI)].polyribocytidylic acid [poly(rC)], mismatched analog poly (rI).poly[r(C12Uracil)n], and poly(rI).poly(rC) complexed with poly L-lysine and carboxymethylcellulose [poly(ICLc)] to induce interferon and the comparative toxicity of each in cats were evaluated. Each induced high levels of circulating interferon, al
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48. Cellulase from Ruminococcus albus and Mixed Rumen Microorganisms1
Cellulase in the cultural filtrates of Ruminococcus albus and cellulase extracted from mixed rumen microorganisms were investigated with acid-swollen cellulose and carboxymethylcellulose as substrates. Maximal activity occurred at approximately pH 5.8 and 47 C. Apparent Michaelis constants (Km) varied between 0.53 and 0.02% carboxymethylcellulose, depending