Results 111 to 120 of about 1,650 (166)
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n-Butyl(carboxymethyl)dimethylammonium Bromide and (Carboxymethyl)ethyldimethylammonium Bromide
Acta Crystallographica Section C Crystal Structure Communications, 1996The title compounds, C 6 H 14 NO 2 + .Br - and C 8 H 18 NO 2 + .Br - , each crystallize forming three-dimensional networks of Br - ...N + contacts and Br - ...H-O hydrogen bonds. n-Butyl(carboxymethyl)dimethylammonium bromide has two molecules in the asymmetric unit.
Rudert, R. +4 more
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The evaluation on biological properties of carboxymethyl-chitosan and carboxymethyl-chitin
Journal of Ocean University of China, 2008Carboxymethyl-chitosan and carboxymethyl-chitin were prepared with the methods developed in our laboratory. The DS (degree of substitution) and DD (degree of deacetylation) of the carboxymethyl-chitosan were 103.14% and 97.18% respectively, while the DS of the carboxymethyl-chitin was 96.37%.
Jing Chang +3 more
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Carboxymethylation of ulvan and chitosan and their use as polymeric components of bone cements
Acta Biomaterialia, 2013 Ulvan, extracted from the green algae Ulva lactuca, and chitosan, extracted from Loligo forbesis squid-pen, were carboxymethylated, yielding polysaccharides with an average degree of substitution of ∼98% (carboxymethyl ulvan, CMU) and ∼87% (carboxymethyl
Claudia Nunes +2 more
exaly +2 more sources
International Journal of Biological Macromolecules
A series of ternary polysaccharide hydrogels were facile prepared by incorporating carboxymethyl cellulose (CMC) into the carboxymethyl chitosan/carboxymethyl β-cyclodextrin (CMCS/CMCD) complex solution based on multiple physical interactions. Structure properties of the CMC/CMCS/CMCD hydrogels were revealed by FTIR, XRD, SEM, and TG.
Junhao, Zhu +5 more
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A series of ternary polysaccharide hydrogels were facile prepared by incorporating carboxymethyl cellulose (CMC) into the carboxymethyl chitosan/carboxymethyl β-cyclodextrin (CMCS/CMCD) complex solution based on multiple physical interactions. Structure properties of the CMC/CMCS/CMCD hydrogels were revealed by FTIR, XRD, SEM, and TG.
Junhao, Zhu +5 more
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The precipitation of proteins by carboxymethyl cellulose
Journal of Dairy Research, 1975SummaryCarboxymethyl cellulose (CMC) formed insoluble complexes with β-lactoglobulin, bovine serum albumin and Na caseinate. Maximum precipitation of the β-lactoglobulin-CMC complex occurred at pH 3·2, whereas maximum precipitation of the bovine serum albumin-CMC complex and the Na caseinate-CMC complex occurred at pH 2·8.
J G, Zadow, R D, Hill
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The Italian journal of biochemistry, 1978
CMSeC labeled with 14C in the carboxymethyl moiety was incubated with snake venom L-aminoacid oxidase. As the product of the reaction only one ketoacid was detected, which retained all the radioactivity of the oxidized substrate. This clearly shows that no breakdown of the C-Se bond of CMSeC occurs during its oxidation, and confirms previously reported
CINI, Chiara, C. D. Marco
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CMSeC labeled with 14C in the carboxymethyl moiety was incubated with snake venom L-aminoacid oxidase. As the product of the reaction only one ketoacid was detected, which retained all the radioactivity of the oxidized substrate. This clearly shows that no breakdown of the C-Se bond of CMSeC occurs during its oxidation, and confirms previously reported
CINI, Chiara, C. D. Marco
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Drug Metabolism Reviews, 2012
S-carboxymethyl-L-cysteine, the side-chain carboxymethyl derivative of the sulfur-containing amino acid, cysteine, has been known and available for almost 80 years. During this time, it has been put to a variety of uses, but it is within the field of respiratory medicine that, presently, it has found a clinical niche.
Mitchell, SC, Steventon, GB
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S-carboxymethyl-L-cysteine, the side-chain carboxymethyl derivative of the sulfur-containing amino acid, cysteine, has been known and available for almost 80 years. During this time, it has been put to a variety of uses, but it is within the field of respiratory medicine that, presently, it has found a clinical niche.
Mitchell, SC, Steventon, GB
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Kinetics of carboxymethylation of histidine hydantoin
Biochemistry, 1979The reaction of the imidazole group of histidine hydantoin with bromoacetate was studied as a model for carboxymethylation of histidine residues in proteins. pK values of 6.4 and 9.1 (25 degrees C) and apparent heats of ionization of 7.8 and 8.7 kcal/mol were determined for the imidazole and hydantoin rings, respectively.
E P, Lennette, B V, Plapp
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Biomedical applications of carboxymethyl chitosans
Carbohydrate Polymers, 2013This review outlines the recent developments on carboxymethyl chitosan-based bio-medical applications. Carboxymethyl chitosan, a water soluble derivative of chitosan, with enhanced biological and physicochemical properties compared to chitosan, has emerged as a promising candidate for different biomedical applications. Introducing small chemical groups
Laxmi, Upadhyaya +3 more
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Properties of carboxymethylated crosslinked hemoglobin A
Biochemistry, 1987The selective carboxymethylation of the N-terminal amino groups of hemoglobin A with glyoxylic acid and sodium cyanoborohydride has been studied as a function of the state of ligation of hemoglobin. The N-terminal residues have been established as the primary sites of reaction by peptide mapping of the tryptic digest of each chain and subsequent amino ...
Fantl W.J. +4 more
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