Two samples of acid-hydrolyzed nanocellulose and two samples of TEMPO-oxidized nanocellulose were separately prepared from cotton liner pulp and microcrystalline cellulose, and dispersed in water. Sodium alginate that was extracted from brown seaweed was dissolved in the nanocellulose suspensions and wet spun in a calcium chloride bath to form four kinds of alginate/nanocellulose composite fibe...

Alginate oligosaccharides (AOS), belonging to the class of functional marine oligosaccharides, are low-molecular polymers linked by ?-1,4-mannuronic acid (M) and ?-1,4-guluronic (G), which could be classically obtained enzymatic hydrolysis alginate. With low viscosity good water solubility, as well anti-oxidant, immune regulation, anti-bacterial anti-inflammatory activities, AOS have been widel...

Title of Thesis: Recirculation Flow Bioreactor for the Synthesis of Nitroxide and N-Oxide Pharmaceuticals Douglas Lischick: Master of Science in Chemical Engineering, 1989 Thesis directed by: Sam S. Sofer, Professor Sponsored Chair in Biotechnology An investigation of the properties of calcium alginate immobilized hog liver microsomes, rich in FAD-containing mixed function oxidase, was performe...

Alginate, a kind of linear acidic polysaccharide, consists ?-L-guluronate (G) and ?-D-mannuronate (M). Both alginate its degradation products (alginate oligosaccharides) possess abundant biological activities such as antioxidant activity, antitumor antimicrobial activity. Therefore, oligosaccharides have great value in food, pharmaceutical, agricultural fields. Alginate lyase can degrade into v...

PURPOSE Alginate mixers available in the market do not have the automatic proportioning unit. In this study, an automatic proportioning unit for the alginate mixer and controller software were designed and produced for a new automatic proportioning unit. With this device, it was ensured that proportioning operation could arrange weight-based alginate impression materials. MATERIALS AND METHOD...

Honey's inherent compositional diversity, bio-compatibility and time tested therapeutic efficacy, especially in tissue repair as a topical agent, attract researchers towards harnessing its biomaterial potential particularly in developing matrix for tissue engineering applications. Hence, this study fabricates fibrous mat from optimum honey-alginate formulation and alginate solution using wet sp...

the degradation of poly (vinyl pyrrolidone) (pvp) by means of ultrasound irradiation and itscombination with heterogenous photocatalysis (tio2 nanoparticles) was investigated. emphasiswas given on the effect of additive on degradation rate constants. 24 khz of ultrasoundirradiation was provided by a sonicator, while an ultraviolet source of 30 w was used for uvirradiation. to increase the effic...

in the present work, a titanium-based ziegler-natta catalyst was employed to synthesize ultra molecular weight polyethylene in a slurry medium. the effect of different parameters such as ethylene pressure, temperature, catalyst composition, and hydrogen pressure was studied. as the results indicate, increasing either [al]/[ti] ratio or temperature causes polymerization rate to go through a maxi...

Anaerobic degradation of marine algae, seagrass and tropical climbing vines to produce a renewable energy source and the analysis of their anaerobic microbial communities Report Title Energy demand by contemporary societies and the excessive consumption of fossil fuels have impulsed research and the employment of renewable energy systems. It has been proposed, in terms of renewable systems, the...

There are several natural polymers such as carrageenan, alginate, chitin or chitosan that are classified as polysaccharides. One of the most promising is chitosan, deacetylated derivative of chitin, produced from shellfish wastes or fungi [15]. Irradiation of this polymer led the reduction of molecular weight by scission of glycosidic linkage. As compared to the conventional techniques, like ac...