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Springer (part of Springer Nature), Biotechnology Letters, 16(28), p. 1279-1284

DOI: 10.1007/s10529-006-9087-6

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Novel hydrogel obtained by chitosan and dextrin-VA co-polymerization

Journal article published in 2006 by Reinaldo Rodrigues Ramos, Vera Carvalho, F. Miguel Gama ORCID
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This paper is available in a repository.

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Abstract

A novel hydrogel was obtained by reticulation of chitosan with dextrin enzymatically linked to vinyl acrylate (dextrin-VA), without cross-linking agents. The hydrogel had a solid-like behaviour with G' (storage modulus) > G'' (loss modulus). Glucose diffusion coefficients of 3.9 x 10(-6) +/- 1.3 x 10(-6) cm(2)/s and 2.9 x 10(-6) +/- 0.5 x 10(-6) cm(2)/s were obtained for different substitution degrees of the dextrin-VA (20% and 70% respectively). SEM observation revealed a porous structure, with pores ranging from 50 microm to 150 microm.