نتایج جستجو برای: Carboxymethyl cellulose

تعداد نتایج: 31638  

Journal: :journal of cellular and molecular anesthesia 0
nima padashi department of chemical engineering, science and research branch, islamic azad university, tehran, iran mehdi arjmand south tehran branch, islamic azad university, tehran, iran samira rajaei md, phd, assistant professor, immunology dept., tehran university of medical sciences, tehran, iran ali dabbagh professor of cardiac anesthesia; anesthesiology research center, shahid beheshti university of medical sciences, tehran, iran

introduction : albumin, one of the most important plasma proteins, has a difficult process of synthesis and production. we compared two different methods for albumin purification: carboxymethyl cellulose (cm cellulose) resin exchange and diethylaminoethyl cellulose (deae cellulose) resin exchange in order to determine which resin could be more beneficial. materials and methods : two ion exchang...

The first stage to have access to a reservoir is the drilling operation. The proper development of this operation plays a major role in increasing productivity. It must be pointed out that the drilling fluid (mud) is pivotal in achieving this objective. Among these fluids, water-based fluids are the most common ones, which have been utilized to drill approximately 80% of all wells and are m...

2015
Gabriella Teti Viviana Salvatore Stefano Focaroli Sandra Durante Antonio Mazzotti Manuela Dicarlo Monica Mattioli-Belmonte Giovanna Orsini

Stem cells from human dental pulp have been considered as an alternative source of adult stem cells in tissue engineering because of their potential to differentiate into multiple cell lineages. Recently, polysaccharide based hydrogels have become especially attractive as matrices for the repair and regeneration of a wide variety of tissues and organs. The incorporation of inorganic minerals as...

2013
D. Leskauskaite I. Jasutiene M. Kersiene E. Malinauskyte P. Matusevicius

In vitro gastro-duodenal digestion model was used to investigate the changes of emulsions under digestion conditions. Oil in water emulsions stabilized by whey proteins (2%) and stabilized by whey proteins (2%) with addition of carboxymethyl cellulose (0.75%) as gelling agent of continuous phase were prepared at pH7. Both emulsions were destabilized under gastric conditions; however the protect...

2012
L. Fonseca - Géigel M. Alvarez G. García R. Cox L. Morier L. Fonte M. G. Guzmán

Toxoplasma gondii is an intracellular parasite capable of infecting all nucleated cells in a diverse array of species. Toxoplasma plaque assay have been described using Bacto Agar. Because of its experimental advantages carboxymethyl cellulose overlay, medium viscosity was choosing and the aim of this work was to develop alternative method for formation of T. gondii plaques. Tachyzoites were in...

Journal: :journal of sciences islamic republic of iran 0

graft copolymers of acrylamide on carboxymethyl cellulose (d.s 0.4-0.5) were prepared by the use of ceric ion, ceric ion/reductant molecule initiator systems in aqueous medium. the graft copolymers were characterized by ir spectroscopy. the extent of graft copolymerisation was measured in terms of grafted chains as a function of both ceric ion and ceric ion/reductant molecule concentrations. it...

Graft copolymers of acrylamide on carboxymethyl cellulose (d.s 0.4-0.5) were prepared by the use of ceric ion, ceric ion/reductant molecule initiator systems in aqueous medium. The graft copolymers were characterized by IR spectroscopy. The extent of graft copolymerisation was measured in terms of grafted chains as a function of both ceric ion and ceric ion/reductant molecule concentrations. It...

Journal: :Applied and environmental microbiology 1979
D L Cruden A J Markovetz

The amounts of carboxymethyl cellulase present in the midguts and hindguts of two species of cockroaches were determined. Numbers of colonies from the guts which digested carboxymethyl cellulose, visualized by flooding plates with cetyltrimethylammonium bromide after incubation, were counted. The numbers indicated the presence of a resident, multiplying population of predominantly anaerobic car...

2003
W. DUANE BROWN

Since the initial description (2, 3) of procedures for the use of cellulose ion exchange columns for the chromatography of proteins, a number of such systems have been developed for specific proteins, including the heme proteins. Thus, Gutter et al. (4) have described the use of carboxymethyl cellulose in a study of various hemoglobins, Rumen (5) has utilized carboxymethyl cellulose for the ide...

2015
Janakidevi Sirisolla K. V. Ramanamurthy

The objective of the present work is to design sustained release matrix tablets of cefixime trihydrate by incorporating drug in a matrix made up of release retardant polymers, which prolong drug release leading to minimization of the peak and valley effect in the plasma and provide patient convenience. The effect of combination of polymers on parameters like release pattern, release mechanism o...

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