A polysaccharide with glucose units linked as in CELLOBIOSE. It is the chief constituent of plant fibers, cotton being the purest natural form of the substance. As a raw material, it forms the basis for many derivatives used in chromatography, ion exchange materials, explosives manufacturing, and pharmaceutical preparations.
An exocellulase with specificity for the hydrolysis of 1,4-beta-D-glucosidic linkages in CELLULOSE and cellotetraose. It catalyzes the hydrolysis of terminal non-reducing ends of beta-D-glucosides with release of CELLOBIOSE.
A cellulose of varied carboxyl content retaining the fibrous structure. It is commonly used as a local hemostatic and as a matrix for normal blood coagulation.
An endocellulase with specificity for the hydrolysis of 1,4-beta-glucosidic linkages in CELLULOSE, lichenin, and cereal beta-glucans.
A species of acetate-oxidizing bacteria, formerly known as Acetobacter xylinum.
Electrophoresis in which cellulose acetate is the diffusion medium.
A cellulose derivative which is a beta-(1,4)-D-glucopyranose polymer. It is used as a bulk laxative and as an emulsifier and thickener in cosmetics and pharmaceuticals and as a stabilizer for reagents.
A family of glycosidases that hydrolyse crystalline CELLULOSE into soluble sugar molecules. Within this family there are a variety of enzyme subtypes with differing substrate specificities that must work together to bring about complete cellulose hydrolysis. They are found in structures called CELLULOSOMES.
A disaccharide consisting of two glucose units in beta (1-4) glycosidic linkage. Obtained from the partial hydrolysis of cellulose.
Enzymes that catalyze the transfer of glucose from a nucleoside diphosphate glucose to an acceptor molecule which is frequently another carbohydrate. EC 2.4.1.-.
A mitosporic fungal genus frequently found in soil and on wood. It is sometimes used for controlling pathogenic fungi. Its teleomorph is HYPOCREA.
Components of the extracellular matrix consisting primarily of fibrillin. They are essential for the integrity of elastic fibers.
High molecular weight polysaccharides present in the cell walls of all plants. Pectins cement cell walls together. They are used as emulsifiers and stabilizers in the food industry. They have been tried for a variety of therapeutic uses including as antidiarrheals, where they are now generally considered ineffective, and in the treatment of hypercholesterolemia.
Polysaccharides consisting of xylose units.
The most abundant natural aromatic organic polymer found in all vascular plants. Lignin together with cellulose and hemicellulose are the major cell wall components of the fibers of all wood and grass species. Lignin is composed of coniferyl, p-coumaryl, and sinapyl alcohols in varying ratios in different plant species. (From Merck Index, 11th ed)
Methylester of cellulose. Methylcellulose is used as an emulsifying and suspending agent in cosmetics, pharmaceutics and the chemical industry. It is used therapeutically as a bulk laxative.
The outermost layer of a cell in most PLANTS; BACTERIA; FUNGI; and ALGAE. The cell wall is usually a rigid structure that lies external to the CELL MEMBRANE, and provides a protective barrier against physical or chemical agents.
A species of gram-negative bacteria of the family ACETOBACTERACEAE found in FLOWERS and FRUIT. Cells are ellipsoidal to rod-shaped and straight or slightly curved.
A species of gram-positive, thermophilic, cellulolytic bacteria in the family Clostridaceae. It degrades and ferments CELLOBIOSE and CELLULOSE to ETHANOL in the CELLULOSOME.
The remnants of plant cell walls that are resistant to digestion by the alimentary enzymes of man. It comprises various polysaccharides and lignins.
An exocellulase with specificity for a variety of beta-D-glycoside substrates. It catalyzes the hydrolysis of terminal non-reducing residues in beta-D-glucosides with release of GLUCOSE.
Usually inert substances added to a prescription in order to provide suitable consistency to the dosage form. These include binders, matrix, base or diluent in pills, tablets, creams, salves, etc.
A genus of motile or nonmotile gram-positive bacteria of the family Clostridiaceae. Many species have been identified with some being pathogenic. They occur in water, soil, and in the intestinal tract of humans and lower animals.
Extracellular structures found in a variety of microorganisms. They contain CELLULASES and play an important role in the digestion of CELLULOSE.
Polysaccharides composed of repeating glucose units. They can consist of branched or unbranched chains in any linkages.
A species of gram-positive bacteria in the family Clostridiaceae. It is a cellulolytic, mesophilic species isolated from decayed GRASS.
Anaerobic degradation of GLUCOSE or other organic nutrients to gain energy in the form of ATP. End products vary depending on organisms, substrates, and enzymatic pathways. Common fermentation products include ETHANOL and LACTIC ACID.
A species of gram-positive, cellulolytic bacteria in the family Clostridiaceae. It produces CELLULOSOMES which are involved in plant CELL WALL degradation.
Solid dosage forms, of varying weight, size, and shape, which may be molded or compressed, and which contain a medicinal substance in pure or diluted form. (Dorland, 28th ed)
A family of bacteria found in the mouth and intestinal and respiratory tracts of man and other animals as well as in the human female urogenital tract. Its organisms are also found in soil and on cereal grains.
The process of cleaving a chemical compound by the addition of a molecule of water.
Dried, ripe seeds of PLANTAGO PSYLLIUM; PLANTAGO INDICA; and PLANTAGO OVATA. Plantain seeds swell in water and are used as demulcents and bulk laxatives.
A product of hard secondary xylem composed of CELLULOSE, hemicellulose, and LIGNANS, that is under the bark of trees and shrubs. It is used in construction and as a source of CHARCOAL and many other products.
An exocellulase with specificity for the hydrolysis of 1,4-beta-glucosidic linkages of 1,4-beta-D-glucans resulting in successive removal of GLUCOSE units.
A group of enzymes that catalyze the hydrolysis of alpha- or beta-xylosidic linkages. EC 3.2.1.8 catalyzes the endo-hydrolysis of 1,4-beta-D-xylosidic linkages; EC 3.2.1.32 catalyzes the endo-hydrolysis of 1,3-beta-D-xylosidic linkages; EC 3.2.1.37 catalyzes the exo-hydrolysis of 1,4-beta-D-linkages from the non-reducing termini of xylans; and EC 3.2.1.72 catalyzes the exo-hydrolysis of 1,3-beta-D-linkages from the non-reducing termini of xylans. Other xylosidases have been identified that catalyze the hydrolysis of alpha-xylosidic bonds.
Chemistry dealing with the composition and preparation of agents having PHARMACOLOGIC ACTIONS or diagnostic use.
A family of bracket fungi, order POLYPORALES, living in decaying plant matter and timber.
Descriptions of specific amino acid, carbohydrate, or nucleotide sequences which have appeared in the published literature and/or are deposited in and maintained by databanks such as GENBANK, European Molecular Biology Laboratory (EMBL), National Biomedical Research Foundation (NBRF), or other sequence repositories.
A plant genus of the family MALVACEAE. It is the source of COTTON FIBER; COTTONSEED OIL, which is used for cooking, and GOSSYPOL. The economically important cotton crop is a major user of agricultural PESTICIDES.
A xylosidase that catalyses the random hydrolysis of 1,3-beta-D-xylosidic linkages in 1,3-beta-D-xylans.
A genus of gram-positive bacteria in the family Lachnospiraceae that inhabits the RUMEN; LARGE INTESTINE; and CECUM of MAMMALS.
A genus of gram-negative, anaerobic bacteria in the family Fibrobacteraceae, isolated from the human GASTROINTESTINAL TRACT.
Substances made up of an aggregation of small particles, as that obtained by grinding or trituration of a solid drug. In pharmacy it is a form in which substances are administered. (From Dorland, 28th ed)
A large and heterogenous group of fungi whose common characteristic is the absence of a sexual state. Many of the pathogenic fungi in humans belong to this group.
Proteins that originate from plants species belonging to the genus ARABIDOPSIS. The most intensely studied species of Arabidopsis, Arabidopsis thaliana, is commonly used in laboratory experiments.
Enzymes which catalyze the endohydrolysis of 1,4-beta-D-xylosidic linkages in XYLANS.
Parts of plants that usually grow vertically upwards towards the light and support the leaves, buds, and reproductive structures. (From Concise Dictionary of Biology, 1990)
Artificially produced membranes, such as semipermeable membranes used in artificial kidney dialysis (RENAL DIALYSIS), monomolecular and bimolecular membranes used as models to simulate biological CELL MEMBRANES. These membranes are also used in the process of GUIDED TISSUE REGENERATION.
Microscopy in which the object is examined directly by an electron beam scanning the specimen point-by-point. The image is constructed by detecting the products of specimen interactions that are projected above the plane of the sample, such as backscattered electrons. Although SCANNING TRANSMISSION ELECTRON MICROSCOPY also scans the specimen point by point with the electron beam, the image is constructed by detecting the electrons, or their interaction products that are transmitted through the sample plane, so that is a form of TRANSMISSION ELECTRON MICROSCOPY.
The ability of a substance to be dissolved, i.e. to form a solution with another substance. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)
The region of the stem beneath the stalks of the seed leaves (cotyledons) and directly above the young root of the embryo plant. It grows rapidly in seedlings showing epigeal germination and lifts the cotyledons above the soil surface. In this region (the transition zone) the arrangement of vascular bundles in the root changes to that of the stem. (From Concise Dictionary of Biology, 1990)
A TEXTILE fiber obtained from the pappus (outside the SEEDS) of cotton plant (GOSSYPIUM). Inhalation of cotton fiber dust over a prolonged period can result in BYSSINOSIS.
Hydrocarbon-rich byproducts from the non-fossilized BIOMASS that are combusted to generate energy as opposed to fossilized hydrocarbon deposits (FOSSIL FUELS).
A plant genus of the family BRASSICACEAE that contains ARABIDOPSIS PROTEINS and MADS DOMAIN PROTEINS. The species A. thaliana is used for experiments in classical plant genetics as well as molecular genetic studies in plant physiology, biochemistry, and development.
The adhesion of gases, liquids, or dissolved solids onto a surface. It includes adsorptive phenomena of bacteria and viruses onto surfaces as well. ABSORPTION into the substance may follow but not necessarily.
The preparation, mixing, and assembling of a drug. (From Remington, The Science and Practice of Pharmacy, 19th ed, p1814)
The normality of a solution with respect to HYDROGEN ions; H+. It is related to acidity measurements in most cases by pH = log 1/2[1/(H+)], where (H+) is the hydrogen ion concentration in gram equivalents per liter of solution. (McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)
The first stomach of ruminants. It lies on the left side of the body, occupying the whole of the left side of the abdomen and even stretching across the median plane of the body to the right side. It is capacious, divided into an upper and a lower sac, each of which has a blind sac at its posterior extremity. The rumen is lined by mucous membrane containing no digestive glands, but mucus-secreting glands are present in large numbers. Coarse, partially chewed food is stored and churned in the rumen until the animal finds circumstances convenient for rumination. When this occurs, little balls of food are regurgitated through the esophagus into the mouth, and are subjected to a second more thorough mastication, swallowed, and passed on into other parts of the compound stomach. (From Black's Veterinary Dictionary, 17th ed)
A key intermediate in carbohydrate metabolism. Serves as a precursor of glycogen, can be metabolized into UDPgalactose and UDPglucuronic acid which can then be incorporated into polysaccharides as galactose and glucuronic acid. Also serves as a precursor of sucrose lipopolysaccharides, and glycosphingolipids.

The influence of a diet rich in wheat fibre on the human faecal flora. (1/2543)

The effect on the faecal flora of adding wheat fibre to a controlled diet in four healthy volunteers for a 3-week period has been observed. No change in the concentration of the bacteria in the bacterial groups counted was found, although there was a slight increase in total output associated with increased faecal weight. The predominant organisms in all subjects were non-sporing anaerobes, but the dominant species in each subject was different and was unaffected by changing the diet. Similarly, the concentration of faecal beta-glucuronidase detected in two subjects was unaltered and the concentration of clostridia able to dehydrogenate the steroid nucleus found in one subject was unaltered. It is suggested that the faecal microflora is not primarily controlled by the presence of undigested food residues in the large bowel.  (+info)

Citric acid production from xylan and xylan hydrolysate by semi-solid culture of Aspergillus niger. (2/2543)

Citric acid production from xylan and xylan hydrolysate was done by Aspergillus niger Yang no. 2 cultivated in a semi-solid culture using bagasse as a carrier. Yang no. 2 produced 72.4 g/l and 52.6 g/l of citric acid in 5 d from 140 g/l of xylose and arabinose, respectively. Yang no. 2 produced 51.6 g/l of citric acid in 3 d from a concentrated xylan hydrolysate prepared by cellulase treatment, containing 100 g/l of reducing sugars. Moreover, Yang no. 2 directly produced 39.6 g/l of citric acid maximally in 3 d from 140 g/l of xylan.  (+info)

Lignocellulose degradation by Phanerochaete chrysosporium: purification and characterization of the main alpha-galactosidase. (3/2543)

The main alpha-galactosidase was purified to homogeneity, in 30% yield, from a solid culture of Phanerochaete chrysosporium on 1 part wheat bran/2 parts thermomechanical softwood pulp. It is a glycosylated tetramer of 50 kDa peptide chains, which gives the N-terminal sequence ADNGLAITPQMG(?W)NT(?W)NHFG(?W)DIS(?W)DTI. It is remarkably stable, with crude extracts losing no activity over 3 h at 80 degrees C, and the purified enzyme retaining its activity over several months at 4 degrees C. The kinetics of hydrolysis at 25 degrees C of various substrates by this retaining enzyme were measured, absolute parameters being obtained by active-site titration with 2',4',6'-trinitrophenyl 2-deoxy-2, 2-difluoro-alpha-D-galactopyranoside. The variation of kcat/Km for 1-naphthyl-alpha-D-galactopyranoside with pH is bell-shaped, with pK1=1.91 and pK2=5.54. The alphaD(V/K) value for p-nitrophenyl-alpha-D-glucopyranoside is 1.031+/-0.007 at the optimal pH of 3.75 and 1.114+/-0.006 at pH7.00, indicating masking of the intrinsic effect at optimal pH. There is no alpha-2H effect on binding galactose [alphaD(Ki)=0.994+/-0.013]. The enzyme hydrolyses p-nitrophenyl beta-L-arabinopyranoside approximately 510 times slower than the galactoside, but has no detectable activity on the alpha-D-glucopyranoside or alpha-D-mannopyranoside. Hydrolysis of alpha-galactosides with poor leaving groups is Michaelian, but that of substrates with good leaving groups exhibits pronounced apparent substrate inhibition, with Kis values similar to Km values. We attribute this to the binding of the second substrate molecule to a beta-galactopyranosyl-enzyme intermediate, forming an E.betaGal. alphaGalX complex which turns over slowly, if at all. 1-Fluoro-alpha-D-galactopyranosyl fluoride, unlike alpha-D-galactopyranosyl fluoride, is a Michaelian substrate, indicating that the effect of 1-fluorine substitution is greater on the first than on the second step of the enzyme reaction.  (+info)

The selective isolation of the uterine oestradiol-receptor complex by binding to oligo(dT)-cellulose. The mediation of an essential activator in the transformation of cytosol receptor. (4/2543)

The [3H]oestradiol-receptor complex was selectively isolated from rat uterus cytosol by column chromatography on oligo(dT)-cellulose. Optimal conditions are described for the binding of the complex to oligo(dT)-cellulose, which is shown to be similar to its binding to DNA-cellulose. The cytosol complex has an apparent mol. wt. of 50,000-60,000 in high salt concentrations, as determined by Sephadex G-100 chromatography. This corresponds to the 4S cytoplasmic oestradiol receptor. In binding to oligo(dT)-cellulose the receptor is transformed into a form with an apparent mol.wt. of 100,000-120,000, corresponding to the 5S nuclear receptor complex. This transformation mimics the conversion in vivo of the cytoplasmic oestradiol receptor into the nuclear form. The binding of the complex to oligo(dT)-cellulose as a 5S nuclear form is unequivocally demonstrated to require the mediation of an activating present in the cytosol. The requirement for an activating factor is discussed in relation to reports that nuclear binding of the oestradiol-receptor complex is not dictated solely by the availability of the cytoplasmic oestradiol receptor.  (+info)

Molecular cloning and expression of the novel fungal beta-glucosidase genes from Humicola grisea and Trichoderma reesei. (5/2543)

A novel fungal beta-glucosidase gene (bgl4) and its homologue (bgl2) were cloned from the cellulolytic fungi Humicola grisea and Trichoderma reesei, respectively. The deduced amino acid sequences of H. grisea BGL4 and T. reesei BGL2 comprise 476 and 466 amino acids, respectively, and share 73.1% identity. These beta-glucosidases show significant homology to plant beta-glucosidases belonging to the beta-glucosidase A (BGA) family. Both genes were expressed in Aspergillus oryzae, and the recombinant beta-glucosidases were purified. Recombinant H. grisea BGL4 is a thermostable enzyme compared with recombinant T. reesei BGL2. In addition to beta-glucosidase activity, recombinant H. grisea BGL4 showed a significant level of beta-galactosidase activity, while recombinant T. reesei BGL2 showed weak beta-galactosidase activity. Cellulose saccharification by Trichoderma cellulases was improved by the addition of recombinant H. grisea BGL4.  (+info)

Cellulolytic enzymes in culture filtrates of Rhizoctonia lamellifera. (6/2543)

During growth in a liquid culture containing a single soluble or an insoluble cellulosic carbon source, Rhizoctonia lamellifera released cellulolytic enzymes into the medium. These enzymes were separated by gel filtration and ion-exchange chromatography into seven components, three of high and four of low molecular weight. One of the components had the character of a C1 cellulase. When the components were combined they released more reducing sugars from cellulosic substrates than when used singly.  (+info)

Calculus disease of the urinary tract at a district hospital. (7/2543)

At a District General Hospital the organization of a clinic for the investigation and treatment of patients with calculus disease of the urinary tract is described. The way in which such a clinic may be orgainzed is discussed and the results presented. In patients with idiopathic hypercalciuria, sodium cellulose phosphate causes a significant reduction in urinary calcium levels when used in such a clinic.  (+info)

Identification of a nucleic acid binding domain in eukaryotic initiation factor eIFiso4G from wheat. (8/2543)

Higher plants have two complexes that bind the m7G-cap structure of mRNA and mediate interactions between mRNA and ribosomal subunits, designated eIF4F and eIFiso4F. Both complexes contain a small subunit that binds the 5'-cap structure of mRNA, and a large subunit, eIF4G or eIFiso4G, that binds other translation factors and RNA. Sequence-specific proteases were used to cleave native cap-binding complexes into structural domains, which were purified by affinity chromatography. We show here that eIFiso4G contains a central protease-resistant domain that binds specifically to nucleic acids. This domain spans Gln170 to Glu443 and includes four of the six homology blocks shared by eIFiso4G and eIF4G. A slightly shorter overlapping sequence, from Gly202 to Lys445, had no nucleic acid binding activity, indicating that the N-terminal end of the nucleic acid binding site lies within Gln170 to Arg201. The binding of the central domain and native eIFiso4F to RNA homopolymers and double- and single-stranded DNAs was studied. Both molecules had highest affinity for poly(G) and recognized single- and double-stranded sequences.  (+info)

... in regenerated cellulose fibers is cellulose II. The conversion of cellulose I to cellulose II is irreversible, ... Natural cellulose is cellulose I, with structures Iα and Iβ. Cellulose produced by bacteria and algae is enriched in Iα while ... These cellulose syntheses use UDP-glucose to form the β(1→4)-linked cellulose. Bacterial cellulose is produced using the same ... Cellulose is used to make water-soluble adhesives and binders such as methyl cellulose and carboxymethyl cellulose which are ...
These are generally characterized as dry cellulose, spray applied cellulose, stabilized cellulose, and low dust cellulose. ... Cellulose vs fiberglass. The Colorado Study, archive-backup "HGTV Pro.com - Best Practices: Cellulose Insulation". "Cellulose ... Dry cellulose is used in retrofitting old homes by blowing the cellulose into holes drilled into the tops of the walls. It can ... Spray-applied cellulose is used for applying cellulose to new wall construction. The differences are the addition of water to ...
In biochemistry, cellulose acetate refers to any acetate ester of cellulose, usually cellulose diacetate. It was first prepared ... Cellulose acetate film, made from cellulose diacetate and later cellulose triacetate, was introduced in 1934 as a replacement ... Cellulose is always completely converted first to cellulose triacetate and then by hydrolysis into cellulose acetates with low ... This cellulose diacetate is known as secondary acetate, or simply as "acetate". After it is formed, cellulose acetate is ...
... the cellulose is completely acetylated; whereas in normal cellulose acetate or cellulose diacetate, it is only partially ... Cellulose triacetate, (triacetate, CTA or TAC) is a chemical compound produced from cellulose and a source of acetate esters, ... Cellulose acetate Vinegar syndrome Rayon Federal Trade Commission definition "Eastman increasing cellulose triacetate capacity ... Acetylation converts hydroxyl groups in cellulose to acetyl groups, which renders the cellulose polymer much more soluble in ...
... is a gelling and thickening agent derived from cellulose. It is widely used in cosmetics, cleaning ... Hydroxyethyl cellulose and methyl cellulose are frequently used with hydrophobic drugs in capsule formulations, to improve the ... Cellulose, Cellulose ethers, All stub articles, Polymer stubs). ... Hydroxyethyl cellulose can be one of the main ingredients in ... Hydroxyethyl cellulose is also used extensively in the oil & gas industry as a drilling mud additive under the name HEC as well ...
... is a water-insoluble derivative of cellulose. It can be produced from cellulose by the action of an ... "Oxidized cellulose". Oto A, Remer EM, O'Malley CM, Tkach JA, Gill IS (June 1999). "MR characteristics of oxidized cellulose ( ... Oxidized cellulose may contain carboxylic acid, aldehyde, and/or ketone groups, in addition to the original hydroxyl groups of ... Regenerated cellulose Collinson, Simon; Thielemans, Wim (2010). "The catalytic oxidation of biomass to new materials focusing ...
... (CMC) or cellulose gum is a cellulose derivative with carboxymethyl groups (-CH2-COOH) bound to some of ... Carboxymethyl cellulose is synthesized by the alkali-catalyzed reaction of cellulose with chloroacetic acid. The polar (organic ... Croscarmellose sodium Hydroxypropyl cellulose Methyl cellulose Codex Alimentarius Commission (2016). "Sodium carboxymethyl ... Cellulose, Food additives, Cellulose ethers, E-number additives). ...
... (HPC) is a derivative of cellulose with both water solubility and organic solubility. It is used as an ... Carboxymethyl cellulose Methyl cellulose Hypromellose Barty-King, Charles; Chan, Chun Lam Clement; Parker, Richard; Bay, ... HPC is an ether of cellulose in which some of the hydroxyl groups in the repeating glucose units have been hydroxypropylated ... Luchs J, Nelinson D, Macy J (December 2010). "Efficacy of hydroxypropyl cellulose inserts (LACRISERT®) in subsets of patients ...
The cellulose that burns during welding forms a very good protective gaseous atmosphere. The main features of cellulose ... A cellulose electrode is a welding electrode that has a coating containing organic materials. About 30% of the coating weight ... paper pulp and wood powder are added to the coating in certain ratios to reduce the amount of pure cellulose. The organic ... deeper penetration can be obtained with cellulose electrodes. This type of electrode is generally produced with thin or medium ...
MCC is pure partially depolymerized cellulose synthesized from α-cellulose precursor. The MCC can be synthesized by different ... Microcrystalline cellulose (MCC) is a term for refined wood pulp and is used as a texturizer, an anti-caking agent, a fat ... These linear cellulose chains are bundled together as microfibril spiralled together in plant cell walls. Each microfibril ... The crystalline region is isolated to produce microcrystalline cellulose. Approved within the European Union as a thickener, ...
The cellulose formation occurs at the air/cellulose pellicle interface and not at the medium/cellulose interface. Thus oxygen ... Bacterial cellulose belongs crystallographically to Cellulose I, common with natural cellulose of vegetable origin, in which ... As the Earth's most common organic material, cellulose can be classified into plant cellulose and bacterial cellulose, both of ... Plant cellulose, which makes up the cell walls of most plants, is a tough, mesh-like bulkwork in which cellulose fibrils are ...
... regenerated or pure cellulose such as from the cupro-ammonium process and modified cellulose such as the cellulose acetates. ... A cellulose molecule may be from several hundred to over 10,000 glucose units long. Cellulose is similar in form to complex ... In addition, cellulose is a straight chain polymer, and each cellulose molecule is long and rod-like. This differs from starch ... Cellulose fibers (/ˈsɛljʊloʊs, -loʊz/) are fibers made with ethers or esters of cellulose, which can be obtained from the bark ...
... is also used as a food additive as an emulsifier (E462). Ethyl methyl cellulose Methyl cellulose " ... Ethyl cellulose (or ethylcellulose) is a derivative of cellulose in which some of the hydroxyl groups on the repeating glucose ... Cellulose, Food additives, Excipients, Cellulose ethers, E-number additives, All stub articles, Polymer stubs). ... Food grade ethyl cellulose is one of few non-toxic films and thickeners which are not water soluble. This property allows it to ...
... is biodegradable and hydrophilic. United States portal Chemistry portal Cellulose acetate Cellulose ... Cellulose diacetate, sometimes called diacetate, is a synthetic polymer made by treating cellulose with acetic acid. It ... When cellulose diacetate deteriorates, it shrinks and releases acetic acid causing vinegar syndrome. Cellulose diacetate has ... Cellulose Acetate and Cardanol Based Seed Coating for Intraspecific Weeding Coupled with Natural Herbicide Spraying. J Polym ...
... (DEAE-C) is a positively charged resin used in ion-exchange chromatography, a type of column ... Cellulose, dextran, agarose, and other insoluble complexes are unaffected because they compose inert matrices, hence why they ... The positive charge of DEAE cellulose is due to a protonated amine group. To ensure that the resin is protonated and positively ... I. Cellulose Ion-exchange Adsorbents". Journal of the American Chemical Society. 78 (4): 751-755. doi:10.1021/ja01585a016. ISSN ...
The enzyme cellulose-polysulfatase (EC 3.1.6.7) catalyzes hydrolysis of the 2- and 3-sulfate groups of the polysulfates of ... The systematic name of this enzyme class is cellulose-sulfate sulfohydrolase. Takahashi N, Egami F (August 1961). "Hydrolysis ... cellulose and charonin. This enzyme belongs to the family of hydrolases, specifically those acting on sulfuric ester bonds. ...
Carboxymethyl cellulose Ethyl cellulose Ethyl methyl cellulose Hydroxypropyl cellulose Hydroxyethyl cellulose "Methylcellulose ... Methyl cellulose, as a gel, has the unique property of setting when hot and melting when cold. Methyl cellulose is used as an ... Methyl cellulose (or methylcellulose) is a compound derived from cellulose. It is sold under a variety of trade names and is ... Methyl cellulose is used as a rheological modifier in paint to prevent 'sagging'. Methyl cellulose is used as sizing in the ...
... is a drug used to treat hypercalcemia and hypercalciuria. It has been used to prevent kidney stones ... Sodium cellulose phosphate reduces the renal excretion of magnesium and calcium. Phosphate and oxalate were both increased in ... "Sodium Cellulose Phosphate (Oral Route) - MayoClinic.com". Retrieved 2009-02-01. Lake KD, Brown DC (1985). "New drug therapy ... By a study done at the University of Texas, it was found that sodium cellulose phosphate inhibited calcium absorption through ...
... is a gelling and thickening agent derived from cellulose. Methylcellulose Hydroxyethyl cellulose ... Cellulose, Cellulose ethers, All stub articles, Polymer stubs). ...
Malm et al., records the preparation of phthalic acid derivatives of ethyl-cellulose and cellulose acetate without the use of ... It can be used together with other coating agents, e.g. ethyl cellulose. Cellulose acetate phthalate is commonly plasticized ... The most common way to prepare cellulose acetate phthalate consists of the reaction of a partially substituted cellulose ... It is a cellulose polymer where about half of the hydroxyls are esterified with acetyls, a quarter are esterified with one or ...
Ethyl cellulose Methyl cellulose Methyl Ethyl Cellulose, monograph prepared at the 17th JECFA (1973), published in FNP 4 (1978 ... Cellulose, Food additives, Cellulose ethers, All stub articles, Polymer stubs). ... Ethyl methyl cellulose is a thickener, vegetable gum, foaming agent and emulsifier. Its E number is E465. Chemically, it is a ... It can be prepared by treatment of cellulose with dimethyl sulfate and ethyl chloride in the presence of an alkali. ...
Starting with cellulose diacetate, this innovation continued with cellulose acetate propionate and cellulose acetate butyrate ... The motion picture industry continued to use cellulose nitrate supports until the introduction of cellulose triacetate in 1948 ... Cellulose acetate film, or safety film, is used in photography as a base material for photographic emulsions. It was introduced ... Cellulose diacetate film was first created by the German chemists Arthur Eichengrün and Theodore Becker, who patented it under ...
... (CAB) is a mixed ester thermoplastic derivative of cellulose acetate that contains both acetate and ... "Cellulose Acetate Butyrate, Eastman - ChemPoint". www.chempoint.com. Retrieved 2021-05-02. "CAB". polymerdatabase.com. ... It has improved weathering resistance and lower moisture absorption compared to cellulose acetate. The exact properties of a ...
Other names in common use include cellulose synthase (guanosine diphosphate-forming), cellulose synthetase, guanosine ... In enzymology, a cellulose synthase (GDP-forming) (EC 2.4.1.29) is an enzyme that catalyzes the chemical reaction GDP-glucose ... Flowers HM, Batra KK, Kemp J, Hassid WZ (1969). "Biosynthesis of cellulose in vitro from guanosine diphosphate D-glucose with ... diphosphoglucose-1,4-beta-glucan glucosyltransferase, and guanosine diphosphoglucose-cellulose glucosyltransferase. This enzyme ...
... s are used for the production of a natural building insulation material known as cellulose ... Cellulose insulating material plants essentially exist of a feeding unit with primary reduction of the raw material, a dosing ... Cellulose insulating material plants are used for the production of naturally insulating material out of raw material like ... The core of the cellulose insulating material plant is a Whirlwind Mill. This mill is able to fray out the material, what leads ...
In plants, cellulose is synthesized by large cellulose synthase complexes (CSCs), which consist of synthase protein isoforms ( ... The UDP-forming form of cellulose synthase (EC 2.4.1.12) is the main enzyme that produces cellulose. Systematically, it is ... Plant members are usually known as CesA (cellulose synthase) or the tentative CslA (cellulose synthase-like), while bacterial ... Carroll A, Specht CD (2011). "Understanding Plant Cellulose Synthases through a Comprehensive Investigation of the Cellulose ...
Once the cellulose chain is bound, it is strung through a tunnel-shaped active site where the cellulose is broken down into two ... The second figure shows the activity of the enzyme, and shows both cellulose binding to the enzyme, as well as the product of ... Cellulose 1,4-beta-cellobiosidase (EC 3.2.1.91, exo-cellobiohydrolase, beta-1,4-glucan cellobiohydrolase, beta-1,4-glucan ... For example, a strain of yeast capable of producing its own cellulose digesting enzyme has been developed, which would allow ...
Cellulose+1,4-beta-cellobiosidase+(reducing+end) at the US National Library of Medicine Medical Subject Headings (MeSH) Portal ... Cellulose 1,4-beta-cellobiosidase (reducing end) (EC 3.2.1.176, CelS, CelSS, endoglucanase SS, cellulase SS, cellobiohydrolase ... Saharay M, Guo H, Smith JC (October 2010). "Catalytic mechanism of cellulose degradation by a cellobiohydrolase, CelS". PLOS ... beta-D-glucosidic linkages in cellulose and similar substrates, releasing cellobiose from the reducing ends of the chains. The ...
Not only cellulose, but also the lignin contained in the paper is oxidized, which leads to the yellowing of the paper. The ... Parallel to the degradation under the influence of water, the cellulose chains react with oxygen, in result of oxidation the ... The aluminum sulphate remaining in the paper form, in reaction with water, acids that catalyze the decomposition of cellulose ( ... I. Kinetic analysis of the aging Process". Cellulose. 3: 243-267. doi:10.1007/BF02228805. S2CID 136945352. Barański, Andrzej ( ...
Cellulose phosphorylases depolymerize cellulose using phosphates instead of water. Avicelase has almost exclusively exo- ... "Cellulose". AccessScience, McGraw-Hill.[permanent dead link] Bignell DE, Roisin Y, Lo N (2011). Biology of termites: a modern ... Cellulose breakdown is of considerable economic importance, because it makes a major constituent of plants available for ... Because cellulose molecules bind strongly to each other, cellulolysis is relatively difficult compared to the breakdown of ...
Chapter 4. Biodegradation of Untreated Cellulose Fibers, pp. 17-21. Chapter 5. Inhibition of Cellulose Biodegradation by ... Biodegradation of Cellulose Fibers. $69.00. Barbara Simonèiè (Author) - University of Ljubljana, Faculty of Natural Sciences ... Namely, cellulose fibres are highly susceptible to microbial attack, resulting in worsened technological and applicable ... The rate and degree of cellulose biodegradation is affected by several factors, among which the most important are the genera ...
557f) Cellulase Peripheral Loops Facilitate Complexation On Cellulose Via Whole-Path Stabilization. Conference ... The structure-function relationships of complexation of cellodextrin chains from cellulose crystals into the active site of a ... An emergent principle is that Cel7B CD facilitates the cellulose processing via whole-path stabilization. The peripheral ... peptide segments outside the active site cleft are shown to couple to the evolving surface structures of cellulose over the ...
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conductive cellulose-based ink for printing 3D stretchable wearable electronics is cheaper and less energy intensive to produce ... Home » Biomaterials » News » Cellulose ink makes printing 3D wearable electronics easy Cellulose ink makes printing 3D wearable ... Instead, the ink developed by Lars Wågbergs team based on PEDOT:PSS uses a form of cellulose known as dialcohol cellulose ( ... Researchers from KTH Royal Institute of Technology in Sweden have developed a conductive cellulose-based ink for printing three ...
Commercializing Scaleable Cellulose Tech: The Digests 2022 Multi-Slide Guide to Nanollose. March 17, 2022 , Jim Lane ...
CAP-482-0.5 Cellulose Acetate Propionate is a low odor, free-flowing powder and is especially suitable for use in inks, ... EASTMAN Cellulose Esters - Adhesion Promoters for Cellulose Ester-Based Inks * Eastman cellulose esters: Versatile performance ... Handling precautions for the use of cellulose esters in formulated products * Pigmentation of Eastman cellulose esters for use ... Compatibility of EASTMAN Cellulose Acetate Butyrate/Cellulose Acetate Propionate and European Resins ...
With a recently developed upgrading process for materials based on ligno-cellulose these limiting properties can be ... Development of thermoplastic composites based on upgrated ligno-cellulose fibres for improved durability and their processing ...
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... lightweight cellulose film, which could be commercialized in 3-5 years. ... VTTs film is made with two sorts of transparent wood cellulose; a fibrous cellulose (HefCel) and a plastic-type cellulose ( ... VTT cellulose film for nuts, chocolate, cereals and cheese to be commercialized in 3-5 years. By Jenny Eagle 25-Jan-2018. - ... VTT recognized for its cellulose packaging. Picture: VTT.. Related tags Packaging VTT Technical Research Centre of Finland has ...
This final technical report documents the demonstration and validation of regenerated cellulose dialysis membrane diffusion ... Demonstration and validation of a regenerated cellulose dialysis membrane diffusion sampler for monitoring ground-water quality ... Demonstration and validation of a regenerated cellulose dialysis membrane diffusion sampler for monitoring ground-water quality ... This final technical report documents the demonstration and validation of regenerated cellulose dialysis membrane diffusion ...
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The global carboxymethyl cellulose market is projected to grow from $1.67 billion in 2021 to $2.23 billion in 2028 at a CAGR of ... Carboxymethyl Cellulose (CMC) Market Size, Share & COVID-19 Impact Analysis, By Application (Food & Beverages, Oilfield, Paper ...
Effect of cellulose nanocrystals (CNC) on rheological and mechanical properties and crystallization behavior of PLA/CNC ... CelluloseCrystallizationLactic AcidMicroscopy, Electron, ScanningMicroscopy, Electron, TransmissionNanocompositesPolyesters ... PLLA-grafted cellulose nanocrystals: Role of the CNC content and grafting on the PLA bionanocomposite film properties. ... Effect of cellulose nanocrystals (CNC) on rheological and mechanical properties and crystallization behavior of PLA/CNC ...
In this study we synthesized quaternary ammonium halide-containing cellulose derivatives (PQ-Cl, PQ-Br, PQ-F) for use as defect ... The architecture of the cellulose derivative-doped inverted PVSCs was indium tin oxide/P3CT-Na/cellulose derivative (PQ-F, PQ- ... Quaternary ammonium halide-containing cellulose derivatives for defect passivation in MAPbI3-based perovskite solar cells† ... In this study we synthesized quaternary ammonium halide-containing cellulose derivatives (PQ-Cl, PQ-Br, PQ-F) for use as defect ...
PLASTRON (R) LFT long cellulose fiber reinforced resin incorporates regenerated cellulose fibers made using the solvent method ... Polyplastics Targets PLASTRON (R) Long Cellulose Fiber Reinforced Resin for Automotive Applications. TOKYO Kyodo News ... Cellulose, a non-edible biomass raw material derived from organic resources other than fossil resources, has the following ... By nature, cellulose is extraordinarily difficult to dissolve in solvents. Today, a significant majority of typical regenerated ...
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A lumber yard is the perfect place to find cellulose, the key building block in plant cells and the organic material that gives ...
Spin coating was used to cast a uniform film of cellulose nanocrystals with low surface roughness and variable thickness as a ... Cellulose nanocrystal, spin coating film, striations, birefringence Cite This Article. Jiang, M., DeMass, S. N., Economy, D. R ... Spin coating was used to cast a uniform film of cellulose nanocrystals with low surface roughness and variable thickness as a ... Formation of Highly Oriented Cellulose Nanocrystal Films by Spin Coating Film from Aqueous Suspensions. Mingzhe Jiang1, S. ...
The global cellulose market is expected to grow at a CAGR of 4.1% during the period 2023-2028. Cellulosic materials have ... also known as cellulose nanocrystals), nanofibrillated cellulose (or cellulose nanofibrils), bacterial cellulose and cellulose ... Based on derivative type, the market is divided into commodity cellulose pulp, cellulose fibres, cellulose ethers, cellulose ... Based on derivative type, the market is divided into commodity cellulose pulp, cellulose fibres, cellulose ethers, cellulose ...
Ethyl cellulose (EC), an important biomass-based material, has excellent film-forming properties. Nevertheless, the high ...
... doi.org/10.1016/j.carbpol.2017.09.089Get rights and contentAbstractCommercialization of cellulose nanofibrils (CNFs) involves ... Water redispersible cellulose nanofibrils adsorbed with carboxymethyl cellulose Cellulose Cellulose nanomaterials in water ... Cellulose Flocculation of microfibrillated cellulose in shear flow Cellulose Redispersion of dried plant nanocellulose: A ... As an initial assessment of the performance of PVA in cellulose redispersion, the stability of the redispersed cellulose ...
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  • Cellulose nanomaterials are categorized into two groups - cellulose nanocrystals (CNCs) and cellulose nanofibrils (CNFs). (nih.gov)
  • In order to enhance the performances of the PVA film, cellulose nanocrystals (CNCs), tannic acid (TA), and chitosan (CS), working as a reinforcer, a crosslinker, and an antimicrobial agent, respectively, were introduced into the PVA matrix. (hindawi.com)
  • Cellulose nanocrystals (CNCs) are an ideal reinforcer in biopolymer industries [ 4 , 10 ]. (hindawi.com)
  • In earlier work, we reported that spray freeze drying of cellulose nanocrystals (CNC) yields porous agglomerate structures. (unboundmedicine.com)
  • Kamal MR, Khoshkava V. Effect of cellulose nanocrystals (CNC) on rheological and mechanical properties and crystallization behavior of PLA/CNC nanocomposites. (unboundmedicine.com)
  • Spin coating was used to cast a uniform film of cellulose nanocrystals with low surface roughness and variable thickness as a function of operational parameters that include rotational speed and dispense suspension concentration. (techscience.com)
  • Instead, the ink developed by Lars Wågberg's team based on PEDOT:PSS uses a form of cellulose known as dialcohol cellulose (DALC), where chemical modification opens the chain structure of the fibers. (materialstoday.com)
  • PLASTRON (R) LFT long cellulose fiber reinforced resin incorporates regenerated cellulose fibers made using the solvent method which produces hardly any waste. (asianetnews.net)
  • Here, we compare the sample preparation steps for mixed cellulose ester (MCE) filter media specified in NIOSH Method 7400- Asbestos and Other Fibers by Phase Contrast Microscopy (PCM)-against a new method, which involves saturation of the filter media with acetone. (cdc.gov)
  • LACRISERT ® (hydroxypropyl cellulose ophthalmic insert) is a sterile, translucent, rod-shaped, water soluble, ophthalmic insert made of hydroxypropyl cellulose, for administration into the inferior cul-de-sac of the eye. (nih.gov)
  • In this book, the results of the chemical modification of cellulose fibres were presented, aimed at protecting the textile material against biodegradation. (novapublishers.com)
  • Namely, cellulose fibres are highly susceptible to microbial attack, resulting in worsened technological and applicable properties of textile products. (novapublishers.com)
  • Special Issue on Innovative Development of Modern Research Page 56 Synthesis of Carboxymethyl Cellulose from Powder and Microcrystalline Cellulose in Isopropyl Alcohol and Ethanol Medium Yuldoshov Sh. (edocr.com)
  • We have studied the possibilities of obtaining low- and highly substituted water-soluble samples of CMC based on microcrystalline cellulose (MCC) and powder cellulose (PC) by the suspension method. (edocr.com)
  • According to the authors, cellulose nanomaterials' inherent fibrous nature and remarkable mechanical properties, coupled with their low cost, biocompatibility, and sustainable source, suggest huge potential as a component in water filtration membranes and environmental remediation applications. (nih.gov)
  • a fibrous cellulose (HefCel) and a plastic-type cellulose (MMCC). (bakeryandsnacks.com)
  • Carboxymethyl cellulose also seeks adoption as stabilizing agent during the production of metal nanoparticles, which are used in various applications such as ice packs for retaining lower freezing point. (clickpress.com)
  • With that end in mind, the researchers developed a gel made from nanoparticles of cellulose extracted from the seeds of tagua trees, a family of tropical palms from South America. (nih.gov)
  • Microscopic examination revealed that cellulose nanoparticles clumped around the spike protein, encapsulating it. (nih.gov)
  • Carboxymethyl cellulose (CMC) has gained immense traction as fat-replacer in processed and ready-to-eat food products, underpinned by the rise in consumer awareness on consumption of healthy food. (clickpress.com)
  • Carboxymethyl cellulose has also witnessed increased adoption in nutrition bars, as it extends solubility of proteins to certain pH levels. (clickpress.com)
  • A significant surge in demand for pharmaceutical specialty drugs has been witnessed since the recent past, which is a key trend influencing adoption of carboxymethyl cellulose. (clickpress.com)
  • The FDA has further approved carboxymethyl cellulose application as a disintegrant in pharmaceuticals, as CMC enhances effect of medicines by improving their dissolving capability. (clickpress.com)
  • A modest 5.1% value CAGR has been envisaged for the carboxymethyl cellulose market in the period of forecast (2018-2028), by a recent Fact.MR study. (clickpress.com)
  • Over 838,000 MT of carboxymethyl cellulose are pegged to be sold worldwide by 2028-end. (clickpress.com)
  • Researchers from the Pharmaceutical Sciences Department, and Industrial and Manufacturing Engineering Department of North Dakota State University, have developed a novel hybrid hydrogel - sodium alginate integrated with carboxymethyl cellulose - which has demonstrated high effectiveness in 3D bio-printing application. (clickpress.com)
  • Carboxymethyl cellulose has been used in several frozen food & beverages as a stabilizing agent and viscosity improving agent. (clickpress.com)
  • Employment of carboxymethyl cellulose as stabilizing agent has curtailed the production cost and consumption of its expensive cooling counterparts, which in turn is expected to bode well for growth of the carboxymethyl cellulose market in the forthcoming years. (clickpress.com)
  • A, Goyipnazarov I. Sh, Nishonova S. R, Sarymsakov A. A, Karabaeva B. S, Azizova M. A Institute of Polymer Chemistry and Physics Academy of Sciences of Uzbekistan, Tashkent, Uzbekistan ABSTRACT Synthesis conditions of different substituted water-soluble carboxymethyl cellulose (CMC) based on microcrystalline and powder cellulose in isopropyl alcohol and ethanol medium are studied. (edocr.com)
  • 1. INTRODUCTION Carboxymethyl cellulose (CMC) is the product of the interaction of alkaline cellulose with monochloracetic acid or its sodium salt [1-5]. (edocr.com)
  • This method allows to obtain products with a high degree of substitution and a uniform distribution of carboxymethyl groups along the cellulose macromolecule, which leads to an improvement in the physicochemical and operational properties of CMC. (edocr.com)
  • Synthesis of carboxymethyl cellulose 10 g of the cellulose-containing feedstock is treated with 60 ml of ethyl alcohol and dispersed for 15 minutes. (edocr.com)
  • Fungal Carboxymethyl Chitosan-Impregnated Bacterial Cellulose Hydrogel as Wound-Dressing Agent. (bvsalud.org)
  • Small loadings of cellulose nanomaterials on polymer membranes can increase the strength of the membrane by up to 50 percent. (nih.gov)
  • This final technical report documents the demonstration and validation of regenerated cellulose dialysis membrane diffusion samplers for use in collecting ground water samples for a range of inorganic and organic water-quality parameters. (usgs.gov)
  • The development of green processing of cellulose, the most abundant biorenewable material on Earth, is urgent from the viewpoints of both sustainability and environmental protection. (rsc.org)
  • Cellulose, the most abundant organic polymer on earth, is an important structural component of plants. (nih.gov)
  • Eastman CAP-482-0.5 is based on cellulose, one of the most abundant natural renewable resources. (eastman.com)
  • Each LACRISERT is 5 mg of hydroxypropyl cellulose. (nih.gov)
  • Our Sustainability Commitment Choosing Nu-Wool Premium Cellulose Insulation helps reduce your carbon footprint. (nuwool.com)
  • Established in 1949, Nu-Wool Co., Inc. manufactures environmentally friendly cellulose insulation materials. (nuwool.com)
  • With a recycled content of 86%, Nu-Wool Premium Cellulose Insulation is a superior product designed for use in walls, attics and floors of new and existing residential and commercial structures. (nuwool.com)
  • When it comes to choosing insulation, Nu-Wool Premium Cellulose Insulation is not only the GREEN choice, but also the superior choice. (nuwool.com)
  • The performance of Nu-Wool Premium Cellulose Insulation is backed by our industry-leading 10-year Energy Guarantee on new construction homes insulated with Nu-Wool, something no other insulation manufacturers offer. (nuwool.com)
  • Live or work in a quieter, more peaceful environment by insulating with Nu-Wool Premium Cellulose Insulation. (nuwool.com)
  • Our premium cellulose insulation would not deliver the energy saving results that it does without our highly trained and certified contractors. (nuwool.com)
  • Cellulose insulation (CI) is a type of thermal insulation produced primarily from recycled newspapers. (nih.gov)
  • Membranes can be created from cellulose nanomaterials because of their dimensions and strength. (nih.gov)
  • Although the biodegradability of cellulose nanomaterials is an advantage in many applications, there is concern that they may degrade easily when incorporated into membranes that interact with bacteria. (nih.gov)
  • One way to circumvent this is to use cellulose nanomaterials as an additive to polymer membranes, which would most likely protect the cellulose from degradation. (nih.gov)
  • Cellulose Acetate Membranes are low protein binding and have a sharp MWCO range. (harvardapparatus.com)
  • Because cellulose nanomaterials have a high surface area-to-volume ratio, low cost, and high natural abundance, and are inherently environmentally inert, they offer a promising alternative to activated carbon for sequestering contaminants. (nih.gov)
  • Studies are also required to determine if the higher cost of cellulose nanomaterials, as compared to the popular activated carbon, will be offset by potentially lower deployment costs. (nih.gov)
  • By comparing the properties and application of carbon nanotubes with cellulose nanomaterials, the authors conclude that the latter may be a suitable replacement for carbon nanotubes used in water treatment technologies. (nih.gov)
  • Cellulose nanomaterials are much cheaper and less energy-intensive to produce than carbon nanotubes. (nih.gov)
  • Cellulose, a non-edible biomass raw material derived from organic resources other than fossil resources, has the following characteristics: negative carbon influence (absorbs carbon dioxide in the air when manufactured) and being sustainable raw material (that can be procured sustainably, unlike resources such as natural minerals). (asianetnews.net)
  • Scientists have demonstrated that the sorptive capacity of cellulose nanomaterials can be increased using carboxylation, a chemical reaction that adds acid structures. (nih.gov)
  • No data are available on cellulose and citric acid use during breastfeeding. (nih.gov)
  • Cellulose and citric acid is acceptable to use during breastfeeding. (nih.gov)
  • They are also produced commercially by reacting nitric acid with metals or cellulose. (cdc.gov)
  • Formic acid is commonly used in airplane glue, tanning, and cellulose manufacturing. (medscape.com)
  • Cellulose, a component of plant, algal, and bacterial cell walls, mixes readily with water without dissolving, forming a gel with adhesive properties. (nih.gov)
  • Bacterial cellulose (BC) produced by Gluconoacetobacter hansenii is a suitable polymeric fiber network for wound -dressing purposes, but its lack of antibacterial properties limits it from healing bacterial wounds . (bvsalud.org)
  • Hydroxypropyl cellulose is an off-white, odorless, tasteless powder. (nih.gov)
  • Eastman™ Cellulose Acetate Propionate CAP-482-0.5 is a low-odor, free-flowing powder. (eastman.com)
  • The discovery of the dissolution of cellulose in ionic liquids (ILs, salts which melt below 100 °C) provides new opportunities for the processing of this biopolymer , however, many fundamental and practical questions need to be answered in order to determine if this will ultimately be a green or sustainable strategy. (rsc.org)
  • Dissolution studies in rabbits showed that hydroxypropyl cellulose inserts became softer within 1 hour after they were placed in the conjunctival sac. (nih.gov)
  • In this critical review , the open fundamental questions regarding the interactions of cellulose with both the IL cations and anions in the dissolution process are discussed. (rsc.org)
  • Our review of the available data has led us to urge the use of more chemical units of solubility, such as 'g cellulose per mole of IL' or 'mol IL per mol hydroxyl in cellulose' to provide more consistency in data reporting and more insight into the dissolution mechanism. (rsc.org)
  • Polyplastics Group has announced that its newly developed long cellulose fiber reinforced polypropylene (PP) resin, PLASTRON (R) LFT, is being targeted for automotive applications such as door module carriers, center consoles, and armrest cores. (asianetnews.net)
  • Diethylaminoethyl cellulose is a positively charged resin that was used in ion-exchange chromatography. (nih.gov)
  • The peripheral peptide segments outside the active site cleft are shown to couple to the evolving surface structures of cellulose over the simulated paths. (aiche.org)
  • As analytical instrumentation has improved, scientists have discovered naturally occurring nanoscale cellulose structures that range in size from nanometers to microns and demonstrate strength properties comparable to Kevlar. (nih.gov)
  • By nature, cellulose is extraordinarily difficult to dissolve in solvents. (asianetnews.net)
  • Today, a significant majority of typical regenerated cellulose is manufactured using a complex process which involves modification of the cellulose, followed by dissolving in solvent and spinning, and finally restoring the original cellulose form. (asianetnews.net)
  • Obtaining of CMC from cellulose involves two stages of chemical reactions [6-7]. (edocr.com)
  • This research is based on evaluating the influence of soaking time and sodium hydroxide concentration on the chemical composition of treated mango seed shell (MSSF) by immersing the MSSF in NaOH solution at concentration of 2.5 - 7.5 wt % and soaking time of 2-6 hr, in order to decrease the lignin and hemicellulose content while increasing its cellulose content. (who.int)
  • In another experiment, the researchers tested whether the cellulose gel could protect lab cultures of human cells from infection with SARS-CoV-2 pseudoviruses-viruses deprived, for safety purposes, of the genetic material needed to cause COVID-19. (nih.gov)
  • To fully understand, Science Nation recently went with Huber to a local lumber yard in Amherst, Mass. A lumber yard is the perfect place to find cellulose, the key building block in plant cells and the organic material that gives plants their structure. (planetforward.org)
  • The respirable particle fractions did not contain cellulose material and consisted mainly of fire retardants and small quantities of clays. (nih.gov)
  • Compared to cellulose particles from other species, cellulose particles from the tagua seeds are thinner and more uniform, providing a large surface area to bind with viruses. (nih.gov)
  • According to the authors, cellulose nanomaterials represent a new class of sustainable materials with recognized potential in improving paper and packaging as well as the automotive, construction, personal care, and textile industries. (nih.gov)
  • Investigations have shown that the interactions between the anion and cellulose play an important role in the solvation of cellulose, however, opinions on the role of the cation are conflicting. (rsc.org)
  • Your search for HYDROXYPROPYL CELLULOSE 1600000 WAMW did not return any results. (nih.gov)
  • Cellulose, as a component of green plants, becomes attractive for fabricating biocompatible flexible functional devices but is plagued by hydrophilic properties, which make it easily break down in water by poor mechanical stability. (nih.gov)
  • The use of cellulose nanomaterials in environmental engineering applications is much less explored but has great untapped potential for water treatment and remediation technologies. (nih.gov)
  • Duke SRP researchers describe the potential benefits of advancing the use of cellulose nanomaterials in water filtration and environmental remediation technologies. (nih.gov)
  • 2015 Cellulose Nanomaterials in Water Treatment Technologies. (nih.gov)
  • Samples of water-soluble CMC with a degree of substitution of 0.38-0.40 based on microcrystalline and powdered cellulose were obtained. (edocr.com)
  • In a compilation of research findings, Duke SRP researchers led by Mark Wiesner, Ph.D., outline the physical and chemical properties, production costs, and current use of cellulose nanomaterials. (nih.gov)
  • With a recently developed upgrading process for materials based on ligno-cellulose these limiting properties can be significantly improved. (europa.eu)
  • High purity cellulose powders for partition chromatography. (sigmaaldrich.com)
  • Also, by the one stage carboxymethylation of cellulose samples were obtained CMC samples with high degree of substitution. (edocr.com)
  • In one experiment, spike protein incubated with the cellulose gel failed to bind with ACE2. (nih.gov)
  • VTT recognized for its cellulose packaging. (bakeryandsnacks.com)
  • In theory, such cellulose-derived packaging could replace up to 15% of the current plastic barrier film market. (bakeryandsnacks.com)
  • The chemical name for hydroxypropyl cellulose is cellulose, 2-hydroxypropyl ether. (nih.gov)
  • At these conditions, cellulose content was increased to 94.8002%, while the hemicelluloses and lignin content were reduced to 2.2779% and 0.508502%, respectively. (who.int)
  • The process parameter of MSSF was optimized using central composite design (CCD) to predict the cellulose, hemicelluloses, and lignin content. (who.int)
  • The quadratic model of response surface model (RSM) was adopted for the prediction of cellulose, hemicelluloses, and lignin content. (who.int)
  • Modified cellulose nanomaterials can also absorb a wide range of organic contaminants. (nih.gov)
  • Some forms of cellulose nanomaterials derived from bacteria have proven suitable to absorb heavy metals. (nih.gov)
  • It is an ether of cellulose in which hydroxypropyl groups (-CH 2 CHOHCH 3 ) are attached to the hydroxyls present in the anhydroglucose rings of cellulose by ether linkages. (nih.gov)
  • Although scientists have found that the materials are effective in sequestering contaminants, more research is needed to ensure that chemical modifications do not alter the nontoxic nature and biodegradability of cellulose nanomaterials. (nih.gov)
  • The success of these materials is evident in the exponential growth in cellulose nanomaterial-related patents in the last 10 years, with a rush to stake claim on the cellulose nanomaterial market. (nih.gov)
  • VTT Technical Research Centre of Finland has been recognized by The Ellen MacArthur Foundation as a Circular Materials Challenge winner for its compostable, lightweight cellulose film, which could be commercialized in 3-5 years. (bakeryandsnacks.com)
  • Polyplastics uses a solvent method cellulose fiber that emits less GHG when manufactured compared to typical glass fiber. (asianetnews.net)
  • The company has earned multiple patents throughout the world for resins reinforced with long-regenerated cellulose fiber, including solvent method cellulose fiber. (asianetnews.net)
  • Sample preparation method for visualization of nanoparticulate captured on mixed cellulose ester filter media by enhanced darkfield microscopy and hyperspectral imaging. (cdc.gov)
  • Both the scooping and threading paths were observed to proceed with similar energetics in complexing glucan chains of different arrangements on the cellulose surface. (aiche.org)
  • The structure-function relationships of complexation of cellodextrin chains from cellulose crystals into the active site of a glycoside hydrolase family 7 endoglucanase catalytic domain (Cel7B CD) are revealed via atomistic molecular dynamics simulations, reaction path optimization, and free-energy calculations. (aiche.org)
  • The vehicle features an eco profile that is achieved using cellulose nanofiber (CNF) that's derived from wood pulp as an alternative to conventional metals that are used for car manufacturing. (trendhunter.com)
  • Dr. John Finlayson's Diethylaminoethyl cellulose column inside the cold room in Building 8 before being moved to Building 29, 1st floor. (nih.gov)
  • In a study of rats fed hydroxypropyl cellulose or unmodified cellulose at levels up to 5% of their diet, it was found that the two were biologically equivalent in that neither was metabolized. (nih.gov)
  • Depending on the type of raw cellulose, production technology, CMC is produced on an industrial scale, characterized by the degree of substitution (DS) and the degree of polymerization (DP). (edocr.com)
  • Addition of cellulose nanofibres from bagasse enhanced the efficiency of the system. (org.in)