Journal
JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS
Volume 80, Issue -, Pages 189-193Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jmbbm.2018.02.006
Keywords
Thin films; Chitosan; Collagen; Glycosaminoglycans
Funding
- National Science Centre (NCN, Poland) [UMO-2015/19/N/ST8/02176]
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Thin films based on chitosan, collagen, and glycosaminoglycans isolated from fish skin were obtained by solvent evaporation. The films were characterized by different analyses, e.g. surface free energy determination, swelling tests, roughness, mechanical and thermal measurements. Moreover, the degradation studies were carried out by the film treatment with collagenase. The results showed that the properties of the films based on chitosan and collagen can be modified by the glycosaminoglycans addition. It was noticed that the addition of glycosaminoglycans enhances the surface hydrophilicity and reduces surface free energy. Surfaces of films modified by glycosaminoglycans (GAGs) show more roughness which inhibits the risk of biofilm formation. The highest films swelling was obtained after 2 h immersion in phosphate-buffered saline (PBS). After their immersion in PBS, the films were more elastic, which was assumed on the basis of the elongation at break values higher than in the case of films on a dry surface. The proposed films can create biocompatible coatings for biomedical applications.
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