Journal
CARBOHYDRATE POLYMERS
Volume 150, Issue -, Pages 408-418Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.carbpol.2016.03.088
Keywords
Polysaccharides; Hydrogels; Polymer demixing; Membranes; Wound healing activity
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Funding
- EU [280929]
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Alginate-based membranes containing hyaluronic acid (HA) were manufactured by freeze-drying calcium-reticulated hydrogels. The study of the distribution of the two macromolecules within the hydro gel enabled to highlight a polymer demixing mechanism that tends to segregate HA in the external parts of the constructs. Resistance and pliability of the membranes were tuned, while release and degradation studies enabled to quantify the diffusion of both polysaccharides in physiological solution and to measure the viable lifetime of the membranes. Biological studies in vitro proved that the liquid extracts from the HA-containing membranes stimulate wound healing and that fibroblasts are able to colonize the membranes. Overall, such novel alginate-HA membranes represent a promising solution for several medical needs, in particular for wound treatment, giving the possibility to provide an in situ administration of HA from a resorbable device. (C) 2016 Elsevier Ltd. All rights reserved.
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