Journal
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
Volume 183, Issue -, Pages 1818-1850Publisher
ELSEVIER
DOI: 10.1016/j.ijbiomac.2021.05.003
Keywords
Chitosan; Biomedical applications; Polysaccharide; Polymer blend; Biomaterials; Drug delivery; Tissue engineering
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Polysaccharides are abundant carbohydrate polymers, with chitosan being the most widely used; blending chitosan with other polymers can improve its properties and bioactivity. This review paper summarizes progress in chitosan blends with biodegradable polymers and polysaccharides for biomedical applications.
Polysaccharides are the most abundant naturally available carbohydrate polymers; composed of monosaccharide units covalently connected together. Chitosan is the most widely used polysaccharides because of its exceptional biocompatibility, mucoadhesion, and chemical versatility. However, it suffers from a few drawbacks, e.g. poor mechanical properties and antibacterial activity for biomedical applications. Blending chitosan with natural or synthetic polymers may not merely improve its physicochemical and mechanical properties, but may also improve its bioactivity-induced properties. This review paper summarizes progress in chitosan blends with biodegradable polymers and polysaccharides and their biomedical applications. Blends of chitosan with alginate, starch, cellulose, pectin and dextran and their applications were particularly addressed. The critical and challenging aspects as well as the future ahead of the use of chitosan-based blends were eventually enlightened. (c) 2021 Published by Elsevier B.V.
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