Showing papers in "Carbohydrate Polymers in 2011"

TL;DR: A review of chitosan composites for removing dyes and heavy metal ions can be found in this article, where a list of composites with their adsorption capacity and experimental conditions has been compiled.

TL;DR: In this paper, a review of the recent development of cellulosic and synthetic fibres based reinforced hybrid composites is presented, focusing the attention in terms of processing, mechanical, physical, electrical, thermal and dynamic mechanical properties.

TL;DR: A recent review as mentioned in this paper addresses recent progress in cellulose-based hydrogels design and fabrication and addresses composite hydrogel prepared by using cellulose in conjunction with other polymers through blending, formation of polyelectrolyte complexes, and interpenetrating polymer networks (IPNs).

TL;DR: In this paper, a chemical-purified cellulose fibers were then mechanically separated into nanofibers using high-intensity ultrasonication, and the diameter distributions of the resulting nanofiber were dependent on the output power of the ultrasonic treatment.

TL;DR: An overview of biological activities and potential health benefits of SPs derived from marine algae, as well as potential products in nutraceutical, pharmaceutical and cosmeceutical areas are presented.

TL;DR: Nanocellulose obtained by acid hydrolysis of sugarcane bagasse (SCB) has been characterized by Fourier transformed infrared (FTIR) spectra, thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), X-ray diffraction (XRD), dynamic light scattering (DLS), scanning electron microscopy (SEM) and atomic force microscopy(AFM) as discussed by the authors.

TL;DR: A review of the impact of heat-moisture treatment and annealing on starch physicochemical properties is presented in this paper, which highlights some applications of hydrothermally treated starch.

TL;DR: In this paper, a graft copolymerization of acrylic acid (AA)/acrylamide (AM)/2-acrylamide (AM), carboxylate, carboxamide and sulfate was used to synthesize superabsorbents.

TL;DR: This review focuses on the state-of-the-art of the production of polysaccharide-based aerogels with emphasis on the influence of processing parameters on the resulting end material properties.

TL;DR: The purpose of this paper is to review the various chemical modification methods and synthetic routes to obtain HA derivatives, encompassing all applications.

TL;DR: In this article, a simple process was developed to obtain an aqueous stable colloid suspension of cellulose nano fibrils from various lignocellulosic fibres.

TL;DR: In this article, a review summarizes results of the recent research on chemical modifications of alginate that are as yet relatively unexploited commercially and summarizes the characteristics and applications of some alginates derivatives.

TL;DR: In this article, equilibrium, kinetics and thermodynamics of Crystal Violet (CV) adsorption onto NaOH-modified rice husk (NMRH) was investigated.

TL;DR: In this article, aqueous solution of chitosan and graphene oxide in the present of diluted acetic acid was used to create a composite film with high tensile strength and high storage modulus up to 200°C.

TL;DR: In this paper, a review outlines the new developments in thermoplastic starch, polyvinyl alcohol based blends and nanocomposites, showing a broad and versatile range of physical properties and other advantageous characteristics at acceptable cost and biodegradation rate.

TL;DR: A review with 267 references as mentioned in this paper shows that, because of the complexity of the variety of systems, several mechanisms are likely to be operating and the proportions of competing mechanisms likely vary with different specific hydrocolloids, different starches, and different methods of preparation of composite pastes and gels.

TL;DR: The results showed preferential killing of cancer cells compared to normal cells by the curcumin-loaded nanoparticles, which could be a promising candidate in cancer therapy.

TL;DR: In this article, a 2,2,6,6-tetramehylpiperidine-1-oxy radical (TEMPO)-oxidized wood cellulose with free carboxyl groups (TOCN-COOH) was completely converted to individual TEMPO-oxidised cellulose nanofibrils with free carbon-oxyl groups, dispersed in water at pH 4.6.

TL;DR: In this article, the synthesis of chitosan nanoparticles (CSN) by ionic gelation with sodium tripolyphosphate and subsequently its loading with silver ions to produce silver loaded CSN (Ag-CSN).

TL;DR: In this article, the effect of carboxyl content on the high pressure defibrillation of oxidized eucalyptus from micro to nanoscale size was investigated, and the morphology of the ensuing nanofibrillated cellulose and its crystalline degree were characterised by FE-SEM and DRX measurement.

TL;DR: In this paper, a facile method for surface acetylation of cellulose nanocrystals (CN) was developed by reaction with acetic anhydride and hydroxyl groups on the surface of CN.

TL;DR: In this article, a dilute acid hydrolysis aiming to recover the hemicellulose sugars was performed on spent coffee grounds (SCG), the residual materials obtained during the processing of raw coffee powder to prepare instant coffee, are the main coffee industry residues.

TL;DR: In this paper, Gluconacetobacter swingsii microfibrils from non-conventional sources were produced using agroindustrial residues such as pineapple peel juice and sugar cane juice as culture media.

TL;DR: In this article, the comparative and competitive adsorption of Cu(II, Ni(II), and Pb(II) from aqueous solution using chitosan immobilized on bentonite (CHB) was investigated.

TL;DR: In this article, a microwave-assisted extraction (MAE) method was used to extract fucoidan from brown seaweed Fucus vesiculosus under different conditions of pressure (30-120psi), extraction time (1-31min), and alga/water ratio (1/25 to 5/25 g/ml−1).

TL;DR: This article is aimed at discussing the modification of gums through derivatisation of functional groups, grafting with polymers, cross-linking with ions etc, in the pursuit of making them suitable for modifying the drug release properties of pharmaceutical dosage forms.

TL;DR: Rod-like straight cellulose whiskers and long flexible entangled microfibrillated cellulose (MFC) were used to prepare cellulosic membranes as discussed by the authors, and it was observed that the diffusion of water is rather controlled by the surface than by the core, probably because of a barrier effect related to the presence of water at the surface during the sorption kinetics.

TL;DR: Cytotoxicity studies by MTT assay indicated that curcumin-O-CMC Nps were toxic to cancer and non-toxic to normal cells and indicated O-C MC as a promising nanomatrix for drug delivery applications.

TL;DR: The most significant achievement of small-angle scattering techniques in starch science has been the quantification of the lamellar architecture of semicrystalline growth rings in native starch granules.

TL;DR: Agar/clay (Cloisite Na + ) nanocomposite films with different amount of the nanoclay (0, 2.5, 5, 10, 15, and 20 g clay/100 g agar) were prepared using a solution intercalation method as mentioned in this paper.