Xylan, an abundant biopolymer mainly extracted from plants and algae, is commonly studied for textile, food and biomedical applications. In this review, different approaches to obtain xylan-based products for drug delivery purposes were described. Investigations about xylan-based films, micro- and nanostructure, with the ability or not to swell (hydrogels), developed for biomedical applications, were summarized. Furthermore, a section on colon drug delivery and the methods that have been developed for the evaluation of these systems were presented.
Keywords: Colon drug delivery; Films; Hydrogels; Nanoparticles; Xylan.
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