Journal ArticleDOI
A review of chitin and chitosan applications
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Chitin is the most abundant natural amino polysaccharide and is estimated to be produced annually almost as much as cellulose, and recent progress in chitin chemistry is quite noteworthy as mentioned in this paper.Abstract:
Chitin is the most abundant natural amino polysaccharide and is estimated to be produced annually almost as much as cellulose. It has become of great interest not only as an underutilized resource, but also as a new functional material of high potential in various fields, and recent progress in chitin chemistry is quite noteworthy. The purpose of this review is to take a closer look at chitin and chitosan applications. Based on current research and existing products, some new and futuristic approaches in this fascinating area are thoroughly discussed.read more
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Chitosan and a modified chitosan as agents to improve performances of mucoadhesive vaginal gels
TL;DR: In conclusion MPCS improved gel characteristics in terms of mucoadhesion force, rheological behaviour and drug release pointing out that this modified chitosan is very suitable to obtain manageable and more acceptable vaginal formulation.
Journal ArticleDOI
Preparation and antimicrobial activity of some carboxymethyl chitosan acyl thiourea derivatives.
TL;DR: The results indicated that the antibacterial and the antifungal activities of the acyl thiourea derivatives are much higher than that of the parent CMCS.
Journal Article
A Review on Application of Chitosan as a Natural Antimicrobial
F. Nejati Hafdani,N. Sadeghinia +1 more
TL;DR: A number of studies on the investigation of chitosan antimicrobial properties and application of them in culture and food mediums are reviewed.
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Influence of the polyethyleneimine grafting on the adsorption capacity of chitosan beads for Reactive Black 5 from aqueous solutions
TL;DR: In this article, the adsorption capacity of chitosan hydrogel beads generated by alkali (CB) and sodium dodecyl sulphate (CSB) gelation was investigated after polyethyleneimine (PEI) grafting for RB5 from aqueous solutions.
Journal ArticleDOI
Chitosan Hydrogel Structure Modulated by Metal Ions.
TL;DR: A better understanding of the gelation mechanism was given and strategies for the modulation of hydrogel morphology were provided, which benefited the design of new CS-based materials with hierarchical structure and facilitated the utilization of polysaccharide resources.
References
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Book
Encyclopedia of polymer science and engineering
TL;DR: In this paper, the authors describe a chain transfer characterisation of polymers charge-transfer complexes, charge transfer complexes and charge transfer complexes of charge transfer and charge-Transfer complexes.
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A simple equation for description of solute release I. Fickian and non-fickian release from non-swellable devices in the form of slabs, spheres, cylinders or discs
TL;DR: In this paper, a simple exponential relation Mt/M∞ = ktn is introduced to describe the general solute release behavior of controlled release polymeric devices, where Mt is the fractional release, t is the release time, k is a constant, and n is the diffusional exponent characteristic of the release mechanism.
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Biodegradable long-circulating polymeric nanospheres
Ruxandra Gref,Yoshiharu Minamitake,Maria Teresa Peracchia,Vladimir S. Trubetskoy,Vladimir P. Torchilin,Robert Langer +5 more
TL;DR: Monodisperse biodegradable nanospheres were developed from amphiphilic copolymers composed of two biocompatible blocks and exhibited dramatically increased blood circulation times and reduced liver accumulation in mice.
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Polymeric Systems for Controlled Drug Release
TL;DR: Kevin Shakesheff investigates new methods of engineering polymer surfaces and the application of these engineered materials in drug delivery and tissue engineering.
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Novel hydrophilic chitosan-polyethylene oxide nanoparticles as protein carriers
TL;DR: In this paper, a new approach for the preparation of nanoparticles made solely of hydrophilic polymers is presented, based on an ionic gelation process, is extremely mild and involves the mixture of two aqueous phases at room temperature.