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In this study, cellulose pulp and urea were used to synthesize cellulose carbamate (nitrogen content reaches 4.5%) by low-cost and environmentally friendly solid-liquid phase method. Cellulose carbamate fluid was prepared by using sodium hydroxide aqueous solution as solvent. The fluid was regenerated and formed in a coagulation bath, and finally a regenerated cellulose membrane with high transparency and separation ability was obtained. The simple chemical treatment of cellulose not only greatly increased the mass fraction of cellulose dissolution (It has reached 15%) and retains the original crystal form and thermal stability of cellulose. The surface of the membrane was relatively dense, and the inside has regular microchannel. The factors affect the transparency and water flux of regenerated cellulose membranes were discussed by orthogonal experimental range analysis. The ability of the regenerated cellulose membrane to reject dyes was tested. The results showed that the rejection of methyl blue and congo red reached 100%, and the rejection rate of methyl orange reached 60%. The oil/water separation ability and the anti-pollution ability of the regenerated cellulose membrane were tested. The oil/water separation effect reached 100%. This membrane may have application prospect in water treatment, biotechnology.
This article was published in the following journal.
Name: International journal of biological macromolecules
Regenerated cellulose can be prepared by treatment with an ionic liquid (IL) and an anti-solvent such as water, which significantly enhances the enzymatic hydrolysis in comparison to crystalline cellu...
This work investigates the ultraviolet (UV) shielding property of composite films synthesized with graphene oxide (GO) nanosheets and regenerated cellulose. Regenerated cellulose was prepared from ZnC...
β-CD grafted cellulose bead had been successfully prepared via dropping method, following by cross-linking reaction under mild conditions. The efficient grafting of β-CD on the cellulose bead made i...
A new sustainable synthetic method for cellulose acetate was developed by a combination of I-catalyzed solid-liquid acetylation of cellulose and a milling process reducing the crystallinity of cellulo...
Thermoplastic "all-cellulose" composites were synthesized by covalent functionalization of cellulose acetate (CA) with oxidized carbonized cellulose (OCC). The OCC were manufactured via microwave-assi...
This is a Phase 3, multi-center, randomized, placebo-controlled trial to determine the effectiveness and safety of the 6% cellulose sulfate (CS) vaginal gel for the prevention of HIV infec...
Topical hemostats are agents that stop bleeding by contributing blood to clot. Oxidized cellulose, a sort of mechanical hemostatic material, predominantly forms a block to stop the blood f...
This study's purpose is to prospectively determine whether topical therapy with an oxidized regenerated cellulose collagen-silver compound is more effective than the current standard of to...
In post-dilution haemodiafiltration only synthetic membranes have been used to date. The allergy problems described with these membranes require the development of other membranes capable...
The purpose of this study is to assess the feasibility of evaluating the use of a composite collagen, silver-oxidized regenerated cellulose matrix compared to the standard of care dressing...
A generic name for film produced from wood pulp by the viscose process. It is a thin, transparent sheeting of regenerated cellulose, moisture-proof and sometimes dyed, and used chiefly as food wrapping or as bags for dialysis. (Grant & Hackh's Chemical Dictionary, 5th ed & McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)
A type of ion exchange chromatography using diethylaminoethyl cellulose (DEAE-CELLULOSE) as a positively charged resin. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)
Cellulose derivative used in chromatography, as ion-exchange material, and for various industrial applications.
A cellulose of varied carboxyl content retaining the fibrous structure. It is used as a local hemostatic and as a matrix for normal blood coagulation.
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.
Within medicine, nutrition (the study of food and the effect of its components on the body) has many different roles. Appropriate nutrition can help prevent certain diseases, or treat others. In critically ill patients, artificial feeding by tubes need t...